In total, 69 students were enrolled in
the Strategies for Success course at Central High
School in Kansas City during the Fall 2004 term. For data analysis purposes, these students were matched on
several characteristics including prior academic performance (i.e., prior
cumulative GPA) with students who did not take the course. The effect of the course on GPA for the term
the course was taken was found to be statistically significant. That is, there was a significant difference between the two group means. The mean GPA during
this term was 2.292 for students taking the course and 2.123 for their
matches. Therefore, it can be assumed
that the Strategies for Success course had an impact on the students’ academic
performance such that students who were enrolled in the course experienced
noteworthy improvements in their grade point averages during the term they
completed the course.
|
Source |
Type 111 Sum of Squares |
df |
MS |
F |
Sig. |
*h2 |
abPower |
|
Corrected Model |
65.294c |
2 |
32.647 |
129.585 |
.000 |
.654 |
1.000 |
|
Intercept |
.608 |
1 |
.608 |
2.412 |
.123 |
.017 |
.338 |
|
prev_cum_gpa |
64.367 |
1 |
64.367 |
255.486 |
.000 |
.651 |
1.000 |
|
group |
1.103 |
1 |
1.103 |
4.377 |
.038 |
.031 |
.547 |
|
Error |
34.515 |
137 |
.252 |
|
|
|
|
|
Total |
782.982 |
140 |
|
|
|
|
|
|
Corrected Total |
99.810 |
139 |
|
|
|
|
|
* h2 = partial eta squared
a
Power = observed power
b Power was computed using a
= 0.05
c R Squared = .654 (Adjusted R Squared = .649)