Download Rule for reporting probability: Give an exact probability (to 2 decimal

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Document related concepts
no text concepts found
Transcript
Rule for reporting probability:
Give an exact probability (to 2 decimal places), as shown by your statistical package.
Do not put in a zero before the decimal point, because the number can never be > 1.
EXCEPT: If the number is less than .001, report it as < .001
Examples:
Statistical package says t is 3.119, df is 7, p is 0.37325
t(7) = 3.12, p = .37
Statistical package says t is -1.24, df is 12, p is 0.01438
t(12) = 1.24, p = .01
Statistical package says t is 13.8614, df is 98, p is 2.2e-12
t(98) = 13.86, p < .001
Here are the results from SOFA statistics:
Before training: mean is 26.2, standard deviation is 7.887
After training: mean is 33.2, standard deviation is 8.927
The t statistic is 7.8262, degrees of freedom is 4, and the p-value is 0.0007195
The mean number of free throws after training (M = 33.2, SD = 8.93) was
higher than the mean number of free throws before training (M = 26.2, SD =
7.89) . The difference in means was highly significant, t(4) = 7.83, p ≤ .001.
The results from SOFA statistics say
the mean for females is 3.678, standard deviation is 3.534
the mean for males is 2.641, standard deviation is 2.028
The t value is -1.827, 104 degrees of freedom, probability 0.0706
The mean number of face touches for females (M = 3.68, SD = 3.53) was greater than
the mean number of touches for males (M = 2.64, SD = 2.03). The difference was not
significant, t(104) = -1.83, p =.071.
Related documents