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General How Do Statisticians Perceive Statistics Journals? Vasilis THEOHARAKIS and Mary SKORDIA Since researchers and academic institutions are increasingly evaluated based on their publication record in peer reviewed journals, it is crucial to assess how the statistics community perceives statistics journals. This study presents four subjective quality metrics of statistics journals as expressed by different segments of statisticians. Based on a worldwide sample of 2,190 statisticians, our ndings indicate that the research interest and geographic origin of the researcher have a signi cant impact on journal perceptions, which are highly correlated with a journal’s total number of citations. KEY WORDS: Journal rankings; Statistics research. 1. INTRODUCTION The recognition and development of an academic institution depends heavily on its faculty’s publication record in prestigious journals (Lane, Ray, and Glennon 1990). As a result, an increased emphasis is placed on publishing in refereed journals and promotion criteria rest heavily on the faculty’s publication record (Gibbons 1990). In fact, not only is the publication record one of the criteria for selecting Fellows at the American Statistical Association (Bailar 1988), but it is also used to measure the productivity of countries and institutions for their contributions to statistics (Genest 1997). Genest measured institution and country research productivity based on the number of articles, number of authors, and page counts in 16 international journals publishing in statistical theory. Since he believed the selection of these journals to be “subjective and far from comprehensive,” a study that systematically identi es the relevant journals would facilitate such studies. The need for identifying relevant journals was also demonstrated by Baltagi (1999) in his article on the ranking of individuals and institutions in applied econometrics. To demonstrate impact, Baltagi used page counts and citations of relevant articles from 15 journals, but could not control for journal quality since no journal quality measure was available. Although citation reports do provide an aggregate measure of a journal’s impact, the perVasilis Theoharakis is Assistant Professor (E-mail: [email protected]), and Mary Skordia is Research Associate, Athens Laboratory of Business Administration (ALBA), Athinas & Areos 2A, Vouliagmeni 166 71, Athens, Greece. This article would not have been in place without the support of colleagues who spent many hours in providing direct input and feedback. The authors thank the editor and associate editor for their very constructive comments that signi cantly improved this article. ® c 2003 American Statistical Association DOI: 10.1198/0003130031414 ceptions of statisticians with different research interests may vary. In fact, in the UK where funds to universities are disbursed based on the Research Assessment Exercise (RAE), impact factors or citation indices are not used to assess research output in journals. Instead, the assessment of the RAE panel for statistics is based on the “perceived editorial standards of journals” (http://www.hero.ac.uk/rae/criteria/crit24.htm). Despite the fact that the assessment of journals is a crucial issue for the research community, it is a surprise that the statistics community’s perceptions have not been systematically examined. We therefore pose the following questions: What are the most popular journals in the eld of statistics? Since promotion decisions frequently depend on the number of publications in top tier journals, how do statisticians classify journals in tiers? Besides one’s perception about a journal’s standing, how useful do researchers nd a particular journal? Do statisticians from different research or geographic areas or with a different type of employment value journals differently? How do the subjective perceptions of journal quality relate to the more objective journal citation measures? By addressing these questions, this study seeks to assist: (1) authors in their search for a research outlet, (2) departments in promotion and tenure decisions, and (3) journal editors, by providing them a view of their journal’s standing. We should note that while we examine the perceptual journal rankings, there is a substantial overlap in the quality of individual articles that appear in journals of vastly different reputation. 2. SURVEY INSTRUMENT AND METHODOLOGY Since we sought to examine journal perceptions over a broad sample, we located four publicly available membership directories of statisticians (American Statistical Association, Institute of MathematicalStatistics, InternationalStatisticalInstitute, and an online listing of UK-based academic statisticians, found at http://www.swan.ac.uk/statistics/das/). Due to the pervasive use of the Internet among statisticians, we developed an online survey. Our questionnaire requested from participants to place statistics journals in rank order and at the same time provide demographic information. The demographic variables were selected in order to be used as segmentation variables that could provide answers to the questions raised earlier. Therefore, participants were asked to rank up to ten statistics journals that they considered as top tier (most rigorous, prestigious, and important) and up to ten additional journals that they considered as second tier. In addition, respondents were asked to list up to ten journals that they considered to be most useful in their work. A list of 110 statistics journals was available on pull-down menus (Appendix), but respondents could also ll in any other journal The American Statistician, May 2003, Vol. 57, No. 2 115 follows: Table 1. Respondents’ Pro le Highest academic degree Doctorate Masters Bachelor’s Other No answer TOTAL 1734 355 40 24 37 2190 Type of employment Faculty member Government employee Researcher/clinician at a health/medical facility Manufacturing industry employee Private consultant Service industry employee Retired Actuary Other No answer TOTAL 1234 185 152 121 101 43 32 3 179 140 2190 Geographical location North America Europe Asia Latin America Australia/New Zealand Africa No answer TOTAL 1495 412 149 57 37 23 17 2190 title they wished. From the directories identi ed, we collected the E-mail addresses of 12,053 statisticians and proceeded by sending an E-mail invitation to them for completing our online questionnaire (the questionnaire and full set of tables are available at www.alba.edu.gr/survey). The survey was pretested on a sample of 30 statisticians and minor alternations were made. Two weeks after the initial E-mail invitation,an E-mail reminder was sent to individuals who had not responded. In total, we received 2,190 usable responses (521 from the second wave) with a usable response rate of 18.2%. No signi cant differences in the ranking of journals were found between rst and second wave respondents, that is, those who responded to the reminder E-mail, which may indicate that our sample does not suffer from nonresponse bias. However, statisticians that do not believe in ranking journals, may have not participated. Nearly two-thirds of our respondents are from North America, more than half are faculty members, and nearly 80% of our respondents hold a doctorate (Table 1). Sixty seven percent of our respondents replied that their institution uses the number and/or character of journal publications for personnel decisions. 2.1 Measures of Perceived Quality Previous studies on the ranking of journals in other disciplines have reported Familiarity and Average Rank Position as measures of perceived quality (Luke and Doke 1987; Hult, Neese, and Bashaw 1997). We measure the Familiarity of a journal by the percentage of respondents who placed the journal among their top 20 (%Top20), whereas Average Rank Position (ARP) refers to the mean of the ranking positions given by respondents who chose to rank the particular journal and is de ned as 116 General ARPi = P20 j= 1 P20 Rij ¤ j j= 1 R ij (1 µ ARPi µ 20); (1) where i denotes the journal and Rij is the number of times journal i has been ranked in the jth position. Thus, a lower ARP denotes a higher perceived journal importance. In addition, we report the percentage of respondents who included the journal in their top ten with respect to the total number of respondents (%Top10) and journal Usefulness that corresponds to the percentage of respondents who listed the journal among the ones most useful in their work. But one has to be careful when ranking journals on any single measure of perceived quality. For example, if journal A is ranked by 100 respondents who all place it in the 1st rst position and journal B is ranked by 101 respondents who all place it in the 20th position, then journal A would be ranked lower if journals were ranked based on Familiarity. In order to minimize such problems, we considered multiple quality measures when performing the ranking of journals, by using a weighted Index of familiarity and rank (Theoharakis and Hirst 2002) that is de ned as follows: P20 j= 1 R ij ¤ (21 ¡ j) Indexi = 100 ¤ 20 ¤ n 21 ¡ ARPi ¤ %Top20i = 100 ¤ 20 (0 µ Indexi µ 100); (2) where i denotes the journal and Rij is the number of times the journal i has been ranked in the jth position and n is the number of respondents in the sample. Thus, the Index assigns to the jth position a decreasing weight of (21 ¡ j)=20, with the rst rank position carrying a weight of 20/20 and the last (20th) position a weight of 1/20. We also extend the original Index by Theoharakis and Hirst (2002) to indicate its connection with ARP and %Top20. As we list the journals based on this Index, we present each individual measure and suggest that readers should examine each journal individually across the metrics presented. 3. RESULTS We present journals based on the weighted Index of familiarity and rank for our worldwide sample and the two largest regional samples (Table 2). Although the correlations between our perceptual metrics (%Top10, %Top20, ARP, and Usefulness) are high (Table 3), the correlations of each one of these metrics with our Index are even higher; the only exception is the correlation of ARP with %Top10 that is about the same with the correlation of ARP with Index (this is not a surprise since %Top10 depends on rank position). This indicates that our Index is indeed a representative measure to conduct our ranking. The Journal of the American Statistical Association (JASA), Biometrika (Bka), The Annals of Statistics (AoS), the Journal of the Royal Statistical Society, Series B (JRSB), and Biometrics (Bcs) are highly perceived across all quality metrics by our worldwide and regional samples. These journals are closely followed by Technometrics (Tech), the Journal of the Royal Statistical Society, Series A (JRSA), Statistics in Medicine (SMed), the Annals of Probability (AoP), and The American Statistician The American Statistician, May 2003, Vol. 57, No. 2 117 JASA Bka AoS JRSB Bcs Tech AmSt JRSA SMed AoP ApSt SSci Ecnt JMA CSTM CJS JSPI SJS AnAP Ssin JCGS Bsts ISR Bern AJE Psyc SPL AISM Chnc AAP CSDA SnkA JAS JAP TStt PTRF JQT JTSA JEcn CSSC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 4.84 4.94 5.61 5.12 5.62 5.99 5.98 6.12 6.12 6.12 6.22 6.30 6.68 6.53 6.70 7.34 6.85 7.57 8.01 7.98 8.21 9.61 10.54 10.00 10.92 12.32 11.01 13.70 18.98 17.13 20.47 24.22 20.57 28.07 42.00 29.79 50.46 56.61 51.74 74.00 2.79 5.07 5.30 4.25 6.39 5.98 4.75 5.43 4.57 5.80 5.80 3.61 5.16 5.71 6.80 6.71 5.75 6.62 6.80 5.98 7.49 10.00 8.49 8.45 6.30 11.74 7.95 14.98 18.04 18.58 21.96 26.71 21.42 23.56 45.57 32.37 59.91 65.48 58.22 80.73 11.51 8.77 9.32 11.64 9.54 11.14 13.70 12.83 13.84 13.11 11.19 13.61 15.98 12.65 13.42 13.74 12.28 16.03 15.89 15.21 17.40 15.66 22.97 22.69 25.84 25.07 23.33 22.01 32.37 29.32 29.68 38.77 32.42 47.72 58.77 47.58 64.84 72.69 64.52 85.30 4.21 5.04 8.05 5.30 4.52 4.94 6.65 5.51 7.64 2.55 4.47 7.06 7.74 4.26 4.47 4.16 10.29 6.18 8.05 9.30 4.99 6.44 8.73 5.61 4.73 8.52 9.61 7.22 15.22 17.97 7.64 8.88 26.91 33.92 38.13 20.31 32.00 40.57 26.70 58.65 Rank Journal INDEX % Top10 % Top20 Usefulness Worldwide (n = 2,190) 12.60 9.72 8.97 12.20 9.22 10.25 12.27 11.47 12.15 11.66 9.88 11.74 12.64 10.67 11.01 10.32 9.84 11.56 10.92 10.51 11.57 8.73 11.82 12.18 12.55 11.17 11.56 8.55 9.28 9.31 7.21 8.51 8.31 9.23 6.71 8.48 5.44 5.43 4.96 3.65 ARP TStt JEcn SPL JAP Bern JBES AAP CCT CSSC AISM CSDA ISR JAS SnkA JQT Psyc SJS AJE Ssin Chnc JCGS AnAP JSPI Bsts JMA CJS CSTM Ecnt SSci ApSt AoP JRSA SMed AmSt Bcs Tech JRSB Bka AoS JASA 4.36 4.37 4.61 4.41 4.67 4.90 4.89 4.93 5.37 5.32 5.41 5.49 6.10 5.82 6.84 7.16 6.94 7.28 8.44 7.86 8.50 8.58 8.88 8.64 9.98 11.07 10.74 12.22 17.29 16.88 18.04 23.40 21.80 31.59 43.19 31.70 46.42 54.59 48.21 76.64 3.55 4.41 2.94 4.41 4.15 4.62 4.55 4.48 2.94 4.62 3.88 4.48 5.55 5.69 6.56 7.36 5.48 6.09 7.96 4.55 7.36 8.83 7.22 6.29 9.36 6.69 7.36 13.38 19.00 15.99 19.20 26.22 22.88 26.89 47.42 34.92 55.99 63.48 54.72 82.68 10.17 7.69 12.31 8.36 9.23 10.17 8.70 9.16 12.71 10.03 12.37 12.17 12.37 12.51 10.90 14.25 16.52 12.91 17.26 16.32 16.72 13.71 19.20 16.19 20.54 25.69 23.08 19.60 29.10 29.03 26.29 36.79 33.85 52.31 58.60 48.96 60.00 69.70 60.27 86.56 3.99 4.37 4.14 2.92 2.38 5.45 2.69 9.21 4.68 2.76 6.14 4.14 4.53 2.30 9.67 4.45 3.84 11.28 5.30 8.44 8.67 5.07 7.14 10.44 6.52 4.60 8.75 5.37 17.88 12.89 5.91 6.75 29.32 38.53 40.45 21.49 27.78 38.99 23.33 61.17 Journal INDEX % Top10 % Top20 Usefulness North America (n = 1,495) 12.43 9.63 13.51 10.45 10.88 11.36 9.76 10.23 12.55 10.40 12.25 11.98 11.14 11.69 8.45 10.95 12.60 9.72 11.22 11.37 10.84 8.49 11.75 10.33 11.28 12.38 11.69 8.53 9.11 9.37 7.28 8.28 8.12 8.92 6.26 8.05 5.53 5.33 5.00 3.29 ARP Table 2. Journal Rankings Based on Geographical Location SC SnkA Ssin AJE SMMR JEcn JAS Psyc Bsts AISM JTSA JCGS CSTM CSDA JAP AAP SPA PTRF AnAP CJS SPL TStt JSPI ISR Bern JMA Ecnt SSci SJS AmSt SMed AoP Tech ApSt Bcs JRSA AoS JRSB Bka JASA Journal 4.85 4.94 5.18 5.18 5.32 5.92 5.72 6.00 6.53 6.21 7.00 7.32 8.14 7.77 8.40 8.47 8.42 9.83 10.47 9.84 10.69 12.34 13.13 12.86 14.67 16.44 15.39 17.26 19.24 18.03 20.39 23.85 22.99 25.81 36.83 29.50 55.95 60.28 58.82 65.22 4.13 3.64 4.13 4.85 4.85 6.80 5.10 6.07 5.10 4.85 4.85 5.58 5.58 5.34 8.25 7.52 8.98 11.65 11.17 5.34 8.98 9.22 9.95 12.86 14.32 15.05 16.75 18.20 17.96 14.56 20.87 26.21 23.54 26.46 38.59 32.28 61.17 68.20 66.99 73.06 10.68 11.41 12.38 8.74 9.22 9.95 12.62 11.41 13.59 14.56 16.26 15.05 17.23 17.96 15.53 15.78 13.35 15.53 17.96 24.03 23.30 26.70 27.91 24.03 25.49 32.52 24.51 29.37 40.29 33.74 33.50 34.47 41.26 40.53 54.13 47.82 70.15 75.97 76.21 78.88 6.02 1.83 1.83 8.38 6.02 5.76 6.81 4.71 7.59 4.19 7.59 6.54 7.07 9.42 7.59 8.38 9.16 8.12 7.85 4.71 12.83 13.09 10.47 10.21 8.90 10.21 10.47 14.40 10.99 20.42 24.08 11.26 14.14 22.77 32.20 16.23 31.15 41.88 38.74 51.83 11.91 12.34 12.63 9.14 9.47 9.10 11.94 10.49 11.39 12.47 12.39 11.27 11.55 12.35 10.19 10.26 8.38 8.34 9.34 12.81 11.82 11.75 11.59 10.29 9.49 10.89 8.45 9.25 11.45 10.31 8.83 7.16 9.86 8.26 7.39 8.66 5.05 5.13 5.56 4.46 INDEX % Top10 % Top20 Usefulness ARP Europe (n = 412) Table 3. Perceived Measure Correlations INDEX %Top10 %Top20 Usefulness ARP %Top10 %Top20 0.966 0.936 ¡0.802 0.941 ¡0.784 0.996 0.982 0.951 ¡0.799 Usefulness ¡0.770 (AmSt) which is the fourth most useful journal worldwide. In order to have some idea if a difference in the Index values between journals is signi cant, we calculated the standard errors for each journal’s Index. For our worldwide sample, the average standard error for journals with an Index greater than 13 ranges from .61 to .89 (mean of .75) while for those with an Index less than 13 ranges from .32 to .53 (mean of .42). Some signi cant differences in journal rankings appear between North American and European statisticians. On one hand, North American statisticians rank higher the Journal of Computational and Graphical Statistics (JCGS), Communications in Statistics, Part A–Theory and Methods (CSTM), Canadian Journal of Statistics (CJS), Biostatistics (Bsts), Psychometrica (Psyc), Statistica Sinica (Ssin), the American Journal of Epidemiology (AJE), and Sankhya, Series A (SnkA). On the other hand, Europeans perceive highly the Scandinavian Journal of Statistics (SJS), Bernoulli (Bern), the International Statistical Review (ISR), The Statistician (TStt), Statistics and Probability Letters (SPL), Probability Theory and Related Fields (PTRF), Advances in Applied Probability (AAP), Stochastic Processes and their Applications (SPA), Journal of Applied Probability (JAP), and Journal of Time Series Analysis (JTSA). These differences in ranking can be explained either by a geographical bias, that is, Americans favor American journals and Europeans favor European journals, or by differences in the research interests of the two populationsin our sample. A higher percentage of European researchers are interested in mathematical statistics, Bayes methods, probability, and stochastic processes, with respect to the corresponding percentage of American researchers. Thus, European researchers tend to favor journals related to Table 4. Journal Rankings Based on Employment Type Academics with PhD (n = 1149) Remaining statisticians (n = 856) Government (n = 185) Rank Journal INDEX % Top10 Journal INDEX % Top10 Journal INDEX 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 JASA Bka AoS JRSB Bcs Tech AoP JRSA AmSt SSci ApSt Ecnt SMed JMA JSPI SJS CJS CSTM AnAP Bern Ssin SPL JCGS PTRF JAP AAP AISM Bsts ISR Psyc JTSA JEcn SnkA CSDA SPA JBES CSSC AJE JAS TStt 77.16 64.88 64.14 60.21 42.05 30.30 26.24 23.74 22.25 20.54 19.33 18.52 17.21 17.18 14.74 13.92 13.91 13.55 13.12 10.84 10.27 9.95 9.77 9.33 8.80 8.60 8.58 8.48 8.09 7.39 7.25 7.15 7.01 6.98 6.89 5.91 5.40 5.28 5.13 4.94 84.77 74.85 72.67 71.37 44.56 32.72 28.55 25.33 17.49 22.37 18.19 20.63 17.06 16.10 11.58 11.84 7.57 9.57 14.10 10.10 9.31 8.18 8.18 10.70 9.14 8.01 7.48 6.61 6.53 7.22 5.74 7.22 6.70 4.79 7.40 5.48 2.87 3.74 3.92 3.74 JASA Bka JRSB Bcs AoS AmSt JRSA SMed Tech ApSt JOS SSci SrvM AoP Ecnt ISR Chnc CSTM AJE CJS Bsts JBES JAS JSPI CSDA TStt Ssin SJS AnAP CSSC JMA JCGS JEcn Psyc SMMR IJE JABE SnkB AoE CCT 77.86 51.68 42.30 39.38 37.73 36.89 30.08 20.27 20.00 19.95 16.43 15.27 14.27 11.89 11.84 11.54 9.89 9.89 9.84 9.73 9.35 7.46 6.84 5.76 5.70 5.57 5.46 5.30 5.24 4.92 4.86 4.59 4.46 4.43 3.92 3.76 3.76 3.70 3.68 3.68 84.32 60.00 51.89 45.41 42.16 32.43 35.68 21.62 21.62 16.76 15.68 15.68 14.59 12.43 11.89 10.81 4.86 5.95 9.73 7.03 7.03 8.65 7.57 3.78 4.86 4.32 4.32 3.78 4.86 3.24 4.32 4.32 4.86 3.78 3.78 3.78 2.70 3.24 2.70 3.24 JASA Bka Bcs JRSB AoS AmSt Tech SMed JRSA ApSt AoP SSci JQT AJE Chnc CSTM Ecnt TStt JMA JAS CJS Bsts JCGS Psyc Ssin ISR JSPI CCT AnAP SJS SnkA CSDA JBS AISM SMMR AAP CSSC BJnl SnkB QE 68.94 46.57 42.51 39.13 38.11 33.98 31.21 25.13 23.59 18.30 14.58 12.97 8.50 8.32 8.30 7.84 7.64 7.46 7.39 7.28 7.16 7.01 6.38 6.27 6.02 6.02 5.94 5.86 5.83 5.77 5.47 5.06 4.94 4.60 4.25 4.10 4.06 3.95 3.93 3.77 118 General % Top10 74.53 54.09 46.96 46.26 42.29 29.79 34.23 27.22 26.64 18.11 15.19 14.14 8.29 7.59 5.49 6.19 8.06 6.19 7.48 7.01 4.44 4.91 5.49 6.89 5.72 5.84 5.37 5.26 5.61 4.91 5.26 4.21 4.32 3.97 3.74 3.86 2.57 2.57 4.09 3.62 Table 5. Journal Rankings of Ph.D. Academics Based on Research Area Biometrics/biostatistics (n = 207) Remaining Ph.D. academics (n = 880) Econometrics (n = 62) Rank Journal INDEX % Top10 Journal INDEX % Top10 Journal INDEX 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 JASA Bcs Bka JRSB AoS SMed Tech JRSA AmSt ApSt SSci Bsts SJS CSTM AJE CJS Ecnt JSPI AoP JCGS CCT Ssin CSDA JMA ISR SMMR LDA CSSC JAS BJnl Psyc SPL JSCS TStt JABE Envr AnAP ANZJ Chnc IJE 85.22 75.14 74.52 68.02 51.43 48.74 31.74 31.30 26.98 26.76 25.68 25.14 14.64 14.44 14.37 14.08 13.45 11.79 10.53 10.10 9.66 9.42 9.35 9.06 8.96 6.86 6.71 6.69 6.28 6.16 5.31 4.93 4.78 4.78 4.23 3.94 3.67 3.67 3.26 3.07 95.65 85.99 86.47 83.09 61.35 52.17 34.30 34.30 21.74 27.05 30.43 22.22 13.04 8.21 10.14 9.18 14.01 8.70 9.66 7.73 8.21 7.73 7.73 6.76 7.25 4.83 5.31 1.93 5.80 1.45 3.86 3.86 3.86 3.38 3.38 2.90 2.90 1.45 0.97 1.93 JASA Ecnt AoS Bka JEcn JRSB JBES ET JRSA RES JTSA AoP JAE AmSt Tech Bcs JMA ER CSTM ApSt IJF SJS SSci JFor SPL CJS Psyc SnkA EcxJ ISR SPA JSPI CSSC SnkB AISM CSDA JNS JAP SN JCGS 84.11 70.73 69.44 65.89 58.55 54.92 39.44 37.90 27.82 24.52 22.74 22.26 20.73 19.68 18.39 16.21 14.44 14.11 11.45 9.44 8.31 8.06 7.82 6.85 6.29 6.21 5.97 5.40 5.16 5.16 5.08 4.84 4.76 4.44 4.19 4.19 4.19 3.39 3.39 3.23 91.94 82.26 77.42 79.03 64.52 69.35 40.32 40.32 33.87 24.19 19.35 25.81 19.35 12.90 20.97 9.68 11.29 9.68 4.84 1.61 6.45 8.06 8.06 4.84 4.84 1.61 6.45 4.84 0.00 3.23 3.23 3.23 4.84 4.84 3.23 3.23 1.61 3.23 3.23 3.23 JASA AoS Bka JRSB Bcs Tech AoP AmSt JMA JRSA CJS SSci JSPI SJS ApSt CSTM SPL Ecnt AnAP Bern Ssin SMed JCGS AISM PTRF JAP AAP ISR SnkA JTSA CSDA Psyc SPA SnkB CSSC TStt JAS JNS ANZJ Chnc 91.64 84.84 84.48 78.87 60.02 52.86 44.63 42.60 39.97 39.38 37.23 37.23 35.68 34.72 34.48 29.71 28.52 27.80 26.97 24.94 24.70 23.51 21.36 21.00 20.88 19.93 19.45 19.21 18.85 18.73 16.59 16.59 15.63 14.68 13.60 13.24 12.89 12.89 12.53 11.69 Mathematics, Probability and Stochastic Processes (e.g., Bern, SPL, PTRF, SPA, JAP). A close examination of these rankings reveals that although some journals are ranked lower they appear to have relatively good conditional rank (low ARP). This suggests that a subset of respondents hold a very different view than the whole group. In particular, this behavior appears to arise in the case of probability and econometrics journals, which is consistent with previous ndings where a signi cant cultural difference was found between probabilists and statisticians (Genest 1999). This observation prompts us to examine segments of our sample with research areas that might favor probability and econometrics journals. 3.1 Journal Rankings Based on Employment Besides differences in perspective due to the geographical location of respondents, we examine the ranking of the two largest groups based on the type of employment. In particular, we focus on academics with a doctorate and government employees (Ta- % Top10 81.70 75.00 71.82 68.75 37.27 33.18 33.18 16.82 18.64 22.61 7.61 21.48 12.84 11.82 17.27 10.23 9.43 17.84 17.61 12.73 10.23 9.89 8.64 9.09 13.86 11.48 9.77 6.59 7.95 5.91 4.20 8.07 9.43 3.98 2.95 4.09 3.75 2.84 2.50 2.39 ble 4). Since academics with a Ph.D. constitute more than half of our worldwide sample, their rankings demonstrate similarities with our worldwide sample. Government employees on the other hand, demonstrate a higher appreciation towards the Journal of Of cial Statistics (JOS) and Survey Methodology(SrvM). This is not as a surprise since the largest portion of statisticians interested in of cial statistics and survey methodology are government employees. 3.2 Journal Rankings Based on Research Area The previous rankings based on geography and type of employment indicated that the underlying research areas of respondents did in uence the overall ranking. We therefore proceed by examining the ranking of two subgroups of Ph.D. academics based on their self-reported research areas (Table 5). Ph.D. academiciansinterested in Biometrics/Biostatisticsrank higherBiometrics (Bcs), Biometrika (Bka), Statistics in Medicine (SMed), Biostatistics (Bsts), American Journal of Epidemiology (AJE), and Controlled Clinical Trials (CCT). Moreover, researchers in this area nd Biometrics more useful to their work than the The American Statistician, May 2003, Vol. 57, No. 2 119 Table 6. Journal Rankings Based on Research Area (all respondents) Applications of statistics (n = 273) Mathematical statistics (n = 169) Bayes methods (n = 93) Rank Journal INDEX % Top10 Journal INDEX % Top10 Journal INDEX 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 JASA Bka JRSB AoS Bcs Tech AmSt JRSA ApSt SSci SMed AoP Ecnt CSTM JQT Psyc JAS Chnc TStt AnAP JSPI JMA CJS JCGS ISR CSDA Bsts SJS SnkA Ssin AAP CSSC AISM BJnl SnkB AJE SPL JAP QE SMMR 74.93 52.38 45.66 40.59 38.81 37.55 36.98 27.11 24.29 18.90 16.25 14.67 11.61 11.28 11.10 10.40 9.73 9.71 9.14 8.66 8.06 7.73 7.66 7.05 6.41 6.14 6.10 5.46 5.27 5.13 5.05 4.96 4.87 4.65 4.62 4.14 3.97 3.66 3.46 3.42 80.59 60.81 54.58 45.42 43.96 40.66 34.80 30.04 23.08 19.78 16.48 15.75 12.82 9.52 10.62 10.99 9.16 6.23 7.69 8.06 6.96 7.69 3.66 5.49 5.49 5.49 3.66 3.30 5.86 4.76 5.49 3.30 5.49 2.56 4.76 2.56 3.30 3.66 2.56 2.93 AoS JASA Bka JRSB AoP JMA Bcs JSPI AISM Bern SJS SSci Tech Ecnt SPL CJS AmSt AnAP PTRF CSTM JRSA SnkA Ssin JAP ApSt AAP SPA SMed ISR TPA ANZJ SnkB JTSA JCGS JNS Mtka JAS CSDA CSSC Stat 85.92 74.62 66.33 59.29 34.70 34.35 30.74 29.53 24.26 24.08 22.57 21.45 21.39 21.30 20.12 18.61 17.37 15.98 15.80 15.56 14.82 13.34 13.14 13.08 12.19 9.29 8.28 8.25 8.17 7.81 6.89 6.86 6.78 6.48 6.21 5.18 4.73 4.41 4.35 4.29 92.90 85.80 74.56 71.01 38.46 32.54 27.22 27.22 23.08 23.08 21.89 23.08 21.89 21.89 17.16 10.65 12.43 14.79 17.16 13.61 13.02 13.02 12.43 13.02 10.06 8.28 9.47 7.10 7.10 7.10 5.33 6.51 3.55 4.73 4.73 4.73 2.96 2.37 2.96 3.55 JASA JRSB Bka AoS Bcs SSci Tech ApSt CJS JCGS AoP JSPI JRSA SMed Ecnt AmSt SJS Ssin JMA SnkA AnAP TStt Bern JTSA Bsts SnkB JEcn CSTM SPL ISR JBES SC AISM JAP Psyc JABE AAP CSDA JFor JAS 91.67 74.68 73.66 68.71 41.08 32.26 30.11 22.69 19.84 19.46 18.06 16.94 16.72 15.32 15.16 14.52 14.41 14.03 14.03 10.81 8.28 8.17 8.06 8.06 7.63 7.15 6.83 6.77 6.67 6.29 5.91 5.27 4.73 4.03 3.92 3.76 3.55 3.49 3.39 3.33 Journal of the American Statistical Association (JASA). On the other hand, Ph.D. academicians interested in econometrics naturally appreciate Econometrica (Ecnt), that they place in the second position and nd as useful as JASA, but nd the Journal of Econometrics (Jecn) as the most useful journal. This group demonstrates a preference for the Journal of Business and Economics Statistics (JBES), Journal of Time Series Analysis (JTSA), Review of Economics & Statistics (RES), the International Journal of Forecasting (IJF), and the Econometrics Journal (EcxJ). Further, we examine the journal perceptions of several groups of researchers based on their research area and independentlyof their employment type (Table 6). We nd that researchers involved in the applications of statistics perceive more highly the Journal of Quality Technology (JQT), Psychometrika (Psyc), the Journal of Applied Statistics (JAS), The Statistician (TStt), and Quality Engineering (QE). Mathematical statisticians rank 120 General % Top10 95.70 86.02 84.95 74.19 40.86 32.26 30.11 21.51 8.60 13.98 19.35 10.75 13.98 12.90 18.28 12.90 12.90 9.68 16.13 9.68 8.60 5.38 7.53 5.38 4.30 3.23 6.45 3.23 3.23 5.38 3.23 3.23 3.23 4.30 3.23 1.08 2.15 2.15 3.23 3.23 Annals of Statistics (AoS) in the rst place across all metrics, seem to prefer theoretical journals, and highly value the Journal of Multivariate Analysis (JMA), Journal of Statistical Planning and Inference (JSPI), Annals of the Institute of Statistical Mathematics (AISM), Bernoulli (Bern), and Probability Theory and Related Fields (PTRF). Bayes methods statisticians have become heavily computationally oriented using Markov chain Monte Carlo analyses and rank higher the Journal of Computationaland Graphical Statistics (JCGS), the leading computational statistics journal, along with Sankhya Series A and Series B (SnkA and SnkB) and the Journal of Time Series Analysis (JTSA). Researchers interested in survey methodology rank higher the Survey Methodology (SrvM), that they nd to be the most useful journal, the Journal of Of cial Statistics (JOS), Journal of Business and Economics Statistics (JBES), and The Statistician (TStt). Table 6. (continued) Journal Rankings Based on Research Area (all respondents) Survey methodology (n = 86) Probability (n = 63) Stochastic processes (n = 56) Rank Journal INDEX % Top10 Journal INDEX % Top10 Journal INDEX % Top10 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 JASA Bka JRSB AmSt SrvM AoS JOS JRSA Bcs ISR Tech Chnc CJS ApSt SSci Ecnt AoP SnkB CSTM SMed AJE SJS JBES TStt SnkA JSPI Ssin JMA ANZJ JAS Bsts CSSC AISM Psyc AnAP JABE JSCS JCGS JFor AoE 78.49 50.23 46.45 40.52 38.31 33.43 33.08 31.34 28.55 20.29 17.79 13.37 12.79 12.56 12.50 9.83 9.19 8.55 7.56 7.56 7.27 7.03 6.34 6.05 5.81 5.29 5.00 4.94 4.42 4.19 4.01 3.90 3.72 3.72 2.50 2.44 2.44 2.38 1.98 1.98 83.72 59.30 55.81 36.05 39.53 39.53 31.40 38.37 29.07 19.77 18.60 9.30 8.14 9.30 9.30 11.63 9.30 8.14 4.65 8.14 5.81 3.49 5.81 5.81 4.65 2.33 3.49 4.65 2.33 4.65 3.49 1.16 4.65 3.49 2.33 1.16 2.33 1.16 2.33 1.16 AoP AoS PTRF AnAP SPA AAP JAP JASA JTP Bka Bern AIHP EJP JMA TPA SPL JRSB SSci ECP JRSA JSPI RSA CJS Bcs SnkA MPRF SSR AmSt Tech CSTM AISM Ecnt PEIS JTSA TPMS MF Ssin JAS ISR FS 80.48 58.65 51.51 48.97 38.65 36.98 31.83 30.08 29.52 28.10 27.14 26.98 22.78 22.78 20.16 19.68 16.19 12.38 12.30 11.83 11.35 10.16 9.37 7.86 7.86 7.30 6.90 6.51 6.51 6.43 6.35 5.56 5.00 4.13 3.97 3.89 3.81 3.57 3.49 3.17 88.89 73.02 68.25 71.43 60.32 60.32 50.79 44.44 44.44 44.44 42.86 47.62 36.51 42.86 36.51 36.51 28.57 20.63 23.81 25.40 22.22 17.46 23.81 19.05 14.29 19.05 14.29 17.46 11.11 15.87 12.70 11.11 7.94 9.52 7.94 7.94 7.94 7.94 7.94 9.52 AoS AoP JASA Bka AnAP JRSB SPA AAP JAP PTRF JRSA Bern Bcs SPL TPA AIHP JMA SJS CSTM JTSA JTP Tech CJS ApSt SSR SM ASMD SAA AISM AmSt SSci Envr Ssin SA JSPI Ecnt MPRF TPMS FS SnkA 77.59 67.32 48.66 47.05 44.02 43.04 42.59 36.34 35.27 34.64 29.55 27.50 22.68 21.07 16.34 15.71 15.45 15.09 14.91 11.34 11.16 10.45 8.21 7.95 7.68 7.68 7.32 7.14 6.79 6.70 6.52 5.18 5.18 5.09 5.00 4.91 4.82 4.64 4.55 4.46 87.50 78.57 53.57 51.79 51.79 50.00 50.00 37.50 39.29 42.86 28.57 26.79 19.64 21.43 16.07 14.29 14.29 12.50 12.50 8.93 10.71 10.71 1.79 3.57 7.14 3.57 3.57 5.36 5.36 3.57 7.14 5.36 3.57 5.36 3.57 3.57 1.79 3.57 3.57 1.79 Our examination of the worldwide rankings indicates that probability journals appear to be appreciated by an underlying segment of the population. More speci cally, when examining statisticians interested in probability and statisticians interested in stochastic processes, the Annals of Probability (AoP) and The Annals of Statistics (AoS) share the leading positions. Although differences exist between these two groups, in general we nd JASA ranked noticeably lower and not as useful while Probability Theory and Related Fields (PTRF), Annals of Applied Probability (AnAP), Stochastic Processes and Applications (SPA), Advanced Applied Probability (AAP), the Journal of Theoretical Probability (JTP), and the Statistics and Probability Letters (SPL) are ranked higher. 3.3 Perceptions Versus Objective Criteria of Journal Ranking Apart from examining the perceptions about statistics journals, we also considered the relationship between worldwide journal perceptions and journal citations. We therefore calculated the correlationsof our worldwide sample Index with the To- tal Cites and Impact Factor (Total Cites adjusted for the number of articles publishedin the two previousyears) of the 54 statistics journals included in the 2001 ISI Journal Citation Reports. The correlation between Total Cites and Index is .84, whereas the correlation between Impact Factor and Index is .56. Although the Impact Factor appears to be more meaningful as it was developed to eliminate the bias towards large journals over small ones and older versus new ones, our results indicate that journal perceptions are more closely related to the total number of citations. One explanation might indeed be that perceptions are in uenced by a journal’s volume of publication rather than its impact. But before arriving at such a conclusion and given that we observe signi cant differences in journal perceptions among segments of statisticians, one may reconsider the use of citation measures provided by ISI; these measures do not focus on citations found in the statistics literature or the speci c research area within statistics, but include any citation source available. This concern has been raised by other disciplines that have addressed the issue by conducting citation studies using as the source for The American Statistician, May 2003, Vol. 57, No. 2 121 citations the most relevant journals of the discipline rather than all available journals in a database (Alexander and Mabry 1994). 4. CONCLUSIONS The results of this survey shed some light on the perceptions of statistics journals worldwide. Findings indicate that although a leading set of journals is highly perceived, journal perceptions differ considerably depending on the statistician’s speci c geographical origin, research interests and employment type. In addition, while some journals may not be perceived as top tier journals overall, they are indeed useful to researchers from speci c research areas. Furthermore, we found that subjective journal perceptions are more related with a journal’s total number of citations rather than its citations impact factor. This is an issue that needs to be further examined by performing a citation analysis using as the source of citations only journals relevant to the particular area of statistics. APPENDIX: JOURNALS Acronym Journal name AAP AJE AmSt AIHP AISM AnAP AoE AoP AoS ASMD ApSt ANZJ Bern BJnl Bcs Bka Bsts CJS Chnc CSSC CSTM CSDA CmpS CCT DMKD DS ER ET Ecnt EcxJ ECP EJP EES Envr ESPS FS IJE Adv Applied Probability Amer J of Epidemiology The American Statistician Ann de l’Institut Henri Poincare Ann Inst Statistical Mathematics Ann of Applied Probability Ann of Epidemiology Ann of Probability Ann of Statistics Appl Stoch Models & Data Anal Applied Statistics Austr & New Zeal J of Statistics Bernoulli Biometrical Journal Biometrics Biometrika Biostatistics Canadian J of Statistics Chance Commun Statist - Simul Comput Commun Statist - Theor Meth Comput Statistics & Data Anal Computational Statistics Controlled Clinical Trials Data Mining Knowl & Discovery Decision Sciences Econometric Reviews Econometric Theory Econometrica Econometrics Journal Electronic Commun Probability Electronic J of Probability Environmental & Ecological Statist Environmetrics ESAIM: Probability & Statistics Finance & Stochastics Intl J of Epidemiology 122 General IJF ISR JABE JBES JASA JAE JAP JAS JBS JChm JCls JCGS JEcn JEBS JFor JKSS JMA JNS JOS JQT JRSA JRSB JSCS JSPI JSS JSE JTP JTSA LDA MPRF MF MCAP Mtka NAAJ PEIS PTRF Psyc QE QP ROSE RSA RES RA SnkA SnkB SAJ SJS SA SJSC SASJ SISP SMMR SN Ssin StaM SP SSci Stat SC SD SPL SMed SAA SM SPA SSR SrvM Intl J of Forecasting Intl Statistical Review J Agric Biol & Environ Statistics J Bus & Economic Statistics J of Amer Statistical Assoc J of Applied Econometrics J of Applied Probability J of Applied Statistics J of Biopharm Statistics J of Chemometrics J of Classi cation J of Comput & Graph Statistics J of Econometrics J of Educ & Behav Statistics J of Forecasting J of Korean Statist Soc J of Multivariate Analysis J of Nonparametric Statistics J of Of cial Statistics J of Quality Technology J of Royal Statist Soc, Ser A J of Royal Statist Soc, Ser B J of Statist Comput & Simul J of Statist Planning & Inference J of Statistical Software J of Statistics Education J of Theoretical Probability J of Time Series Analysis Lifetime Data Analysis Markov Proc & Related Fields Mathematical Finance Meth & Comput in Appl Probability Metrika North Amer Actuarial J Prob in Enginrg & Informational Sci Probability Theory & Rel Fields Psychometrika Quality Engineering Quality Progress Random Opratrs & Stoch Equns Random Structures & Algorithms Review of Econ & Statistics Risk Analysis Sankhya, Series A Sankhya, Series B Scandinavian Actuarial J Scandinavian J of Statistics Sequential Analysis SIAM J Scienti c Computing South African Statistical J Statist Inference for Stoch Proc Statist Methods in Medical Rsrch Statistica Neerlandica Statistica Sinica Statistical Modelling Statistical Papers Statistical Science Statistics Statistics & Computing Statistics & Decisions Statistics & Probability Letters Statistics in Medicine Stochastic Analysis & Applic Stochastic Models Stochastic Proc & Applications Stochastics & Stochs Reprts Survey Methodology TS Tech Test TStt TPA TPMS Teaching Statistics Technometrics Test The Statistician Theory Probab & Applications Theory Probab & Math Statistics [Received September 2002. 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