|
Comparing Changes Over Time in One Group with Changes Over Time
in A Larger Group - Means and Standard Deviations, Sample Size Not Known
|
| |
|
Enter
the data for your group
|
|
|
a) Mean for the more recent
year
|
|
|
c) Mean for the comparison
year
|
|
|
Now enter the data for the
larger comparison group
|
|
|
a) Mean for the more recent
year
|
|
|
b) Standard deviation for the
more recent year
|
|
|
c) Mean for the comparison
year
|
|
|
d) Standard deviation for the
comparison year
|
|
|
Results
|
|
|
Effect Size
|
|
|
Improvement Index
|
|