Comparing Scores in One Group with Those in a Larger Group -
Means and Standard Deviations, Sample Size Not Known
|
Data
for Your Group
|
|
a)
Average score of students in your group
|
|
Data
for the Larger Group
|
|
a)
Average score of students in the larger group
|
|
b)
Standard deviation of scores in the larger group
|
|
Results
|
|
Effect
Size
|
|
Improvement
Index
|
|