Research Project Data Analysis-SAMPLE
Names: Alice
Alverno and Sally Student
Project Title: Effect
of airline travel on cognitive ability
Hypothesis (must be a
statement):
Cognitive ability is
impaired by 8 hours of airline travel
Independent variable(s):
Airline travel (8 hours)
Dependent variable(s):
Ability to solve
mathematical equations
Summary statistics (means
and standard deviations, etc.. Round to 3 or 4 significant digits):
Math Scores for Airline
Travel Group: Mean = 5.79 correct (out of 10), Standard deviation = 2.04 ,
Range 3 to 9
Math Scores for Control
Group: Mean = 7.58 correct (out of 10), Standard deviation = 1.54, Range= 5 to
10
Statistical test used: One-tailed independent t-test for unequal variances
(Excel©)
P-value or r2:
P = 0.002
Attach your data sheets
with labels.
Attach your graph(s) of
your summary data. Remember to label
your axes and provide a descriptive legend if necessary. Include error bars (can be hand-drawn) or
regression line.
State in one or two sentences
how your analysis of data supports or refutes your hypothesis.
Our data supported our
hypothesis. The airline travel group did
significantly poorer on the math test than the control group did (p=.0022).
Scores on Math Test (out
of 10 possible)
|
|
Air Travel |
Control |
|
|
5 |
8 |
|
|
4 |
9 |
|
|
7 |
5 |
|
|
6 |
10 |
|
|
3 |
7 |
|
|
9 |
5 |
|
|
5 |
6 |
|
|
4 |
8 |
|
|
6 |
9 |
|
|
7 |
7 |
|
|
5 |
6 |
|
|
4 |
8 |
|
|
7 |
7 |
|
|
3 |
9 |
|
|
8 |
10 |
|
|
9 |
6 |
|
|
3 |
8 |
|
|
9 |
9 |
|
|
6 |
7 |
|
Mean |
5.789473684 |
7.578947 |
|
Std Dev |
2.043388998 |
1.538968 |
|
T test |
P = 0.002231949 |
|
Effects of air travel on average math test scores
(out of 10 points possible)
|
Air
Travel |
Control |
|
5.79 +/- 2.04 |
7.58 +/- 1.54 |
(n=25; p=.0022)
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