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Transcript
BASIC DATA ANALYSIS
INTRODUCTION

Two types of analysis based on the data that is
generated.
Quantitative or
 Qualitative

Basic descriptive statistics such as mean, median,
and mode are in studying quantitative data.
 Standard deviation is also often used to show the
variation
 Qualitative data is most often transcribed and
studied for themes.
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REPORTING SCORES
Don’t share data unless it is supporting a claim
or idea.
 Reporting data without context or purpose is
very confusing.
 Can give a visual breakdown of what was said
and may be less confusing to those reading it.
 Keep in mind that you may want to arrange and
show the results from your surveys.
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BASIC QUANTITATIVE DESCRIPTORS
The mean (or average) is found by taking the
sum of the numbers and then dividing by how
many numbers you added together.
 The number that occurs most frequently is the
mode.
 When the number are arranged in numerical
order, the middle one in the median.

TOPIC ONE
The mean (or average) is found by adding all
the numbers and then dividing by how many
numbers you added together.
 Example: 3,4,5,6,7
 3+4+5+6+7= 25
 25 divided by 5 = 5
 The mean is 5

TOPIC TWO
The number that occurs most frequently is the
mode.
 Example: 2,2,2,4,5,6,7,7,7,7,8
 The number that occurs most frequently is 7
 The mode is 7
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TOPIC THREE
When numbers are arranged in numerical
order, the middle one is the median.
 Example: 3,6,2,5,7
 Arrange in order 2,3,5,6,7
 The number in the middle is 5
 The median is 5
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AVERAGING GRADES
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Lowest
55
60
75
80
80
80
83
83
93
93
93
93
93
Highest
FIND THE MEAN OF THE
FOLLOWING SET OF GRADES
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First add all the grades
together.
The total equals 1061
Now divide 1061 by 13 (total
grades
The answer is 81.61
The mean is 81.61
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Lowest
55
60
75
80
80
80
83
83
93
93
93
93
93
Highest
FIND THE MODE OF THE
FOLLOWING GRADES
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The mode is the
number which
occurs most often.
The number which
occurs most often
is 93
The mode is 93
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Lowest
55
60
75
80
80
80
83
83
93
93
93
93
93
Highest
FIND THE MEDIAN OF THE
FOLLOWING NUMBERS
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The median is the number
in the middle of numbers
which are in order from
least to greatest.
If we count from both sides
the number in the middle is
83.
The median is 83
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Lowest
55
60
75
80
80
80
83
83
93
93
93
93
93
Highest
REAL LIFE
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If these were your math grades, what
would you learn by analysising them?
The mean was 81.61. In order to raise your
grades, you would have to make higher
than an 81.61 on the rest of your
assignments.
The mode was 93 which was your highest
grade. You could look at these papers to
see why you made this grade the most.
The median is a 83. This means that most
of your grades were higher than your
average. Find your week area and try to
improve.
HOW DOES THE DATA HELP YOU
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Knowing the mean, median, and mode will help you better
understand the scores on your survey.
This in turn will allow you to report on significant findings or
describe how your respondents feel about a specific aspect of the
program being evaluated.
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ANALYSIS SOFTWARE
Creating descriptive data can be done using a
variety of programs.
 MS Excel is a simple program with many of the
basic data analysis components built into it.
 SPSS is another software program that can do
very simple as well as very complex statistical
analysis.
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ANALYZING QUALITATIVE DATA
Can be done using a saturation or thematic
model.
 Transcripts are reviewed for common or
recurring themes.
 These themes can then be grouped together
and a more focused analysis of what is being
said can occur.
 Selected quotes can be used to support
themes.
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