Table 10 Pairwise comparisons
Dependent variable | (I) Condition | (J) Condition | Mean difference (I-J) | Std. error | Sig | 95% Confidence interval for difference | |
|---|---|---|---|---|---|---|---|
Lower bound | Upper bound | ||||||
Vocabulary pretest score | Portfolio assessment | Self-assessment |  − .027 | .391 | 1.000 |  − 1.077 | 1.024 |
Peer assessment | .230 | .377 | 1.000 |  − .781 | 1.241 | ||
Control |  − .077 | .393 | 1.000 |  − 1.131 | .977 | ||
Self-assessment | Portfolio assessment | .027 | .391 | 1.000 |  − 1.024 | 1.077 | |
Peer assessment | .257 | .377 | 1.000 |  − .754 | 1.268 | ||
Control |  − .050 | .393 | 1.000 |  − 1.104 | 1.004 | ||
Peer assessment | Portfolio assessment |  − .230 | .377 | 1.000 |  − 1.241 | .781 | |
Self-assessment |  − .257 | .377 | 1.000 |  − 1.268 | .754 | ||
Control |  − .307 | .378 | 1.000 |  − 1.322 | .708 | ||
Control | Portfolio assessment | .077 | .393 | 1.000 |  − .977 | 1.131 | |
Self-assessment | .050 | .393 | 1.000 |  − 1.004 | 1.104 | ||
Peer assessment | .307 | .378 | 1.000 |  − .708 | 1.322 | ||
Vocabulary post-test score | Portfolio assessment | Self-assessment | .353 | .895 | 1.000 |  − 2.050 | 2.756 |
Peer assessment |  − 1.548 | .862 | .450 |  − 3.862 | .765 | ||
Control | 6.557 | .898 | .000 | 4.146 | 8.968 | ||
Self-assessment | Portfolio assessment |  − .353 | .895 | 1.000 |  − 2.756 | 2.050 | |
Peer assessment |  − 1.901 | .862 | .176 |  − 4.215 | .413 | ||
Control | 6.204 | .898 | .000 | 3.793 | 8.616 | ||
Peer assessment | Portfolio assessment | 1.548 | .862 | .450 |  − .765 | 3.862 | |
Self-assessment | 1.901 | .862 | .176 |  − .413 | 4.215 | ||
Control | 8.106 | .865 | .000 | 5.783 | 10.428 | ||
Control | Portfolio assessment |  − 6.557 | .898 | .000 |  − 8.968 |  − 4.146 | |
Self-assessment |  − 6.204 | .898 | .000 |  − 8.616 |  − 3.793 | ||
Peer assessment |  − 8.106 | .865 | .000 |  − 10.428 |  − 5.783 | ||