Table 2 Student’s t-tests for unpaired samples for control and experimental group
Pre-test | Post-test | |||||
|---|---|---|---|---|---|---|
t | p | d | t | p | d | |
Cooperative Learning Questionnaire | ||||||
Social skills | 1.248 | .213 | 0.159 | 2.709 | .007 | 0.35 |
Group processing | −1.951 | .052 | −0.247 | 1.019 | .309 | 0.13 |
Positive interdependence | −0.547 | .585 | −0.070 | 3.511 | .001 | 0.45 |
Promoter interaction | 0.016 | .988 | .0002 | 5.016 | .000 | 0.64 |
Individual responsibility | 0.210 | .834 | 0.027 | 4.548 | .000 | 0.58 |
Stigmatizing Attitudes Questionnaire AQ14 | ||||||
Dangerousness | −0.380 | .710 | −0.048 | −8.714 | .000 | −1.10 |
Solidarity | −1.428 | .172 | −0.177 | − 11.049 | .000 | − 1.40 |
Coercion | −1.843 | .069 | −0.232 | −8.254 | .000 | −1.03 |
Avoidance | −1.441 | .157 | −0.181 | −10.804 | .000 | −1.35 |
Total Battery | −1.622 | .115 | −0.203 | −12.775 | .000 | −1.61 |
Academic Performance | 3654 | .000 | 0.46 | |||