Table 4 Descriptive statistics and correlations of tests on covariates
From: Developing a computer-based assessment of complex problem solving in Chemistry
Variables | N Items | M | SD | Min | Max | α | Correlations | ||
|---|---|---|---|---|---|---|---|---|---|
1. | 2. | 3. | |||||||
1. Domain-specific prior knowledge | 22 | 6.53 | 3.18 | 0 | 18 | 0.73 | 1.00 | ||
2. Fluid intelligence (Gf) | 36 | 12.03 | 5.53 | 0 | 30 | 0.84 | 0.30** | 1.00 | |
3. General interest (AIST) | 20 | 43.60 | 16.37 | 0 | 74 | 0.94 | 0.02 ns | −0.15*** | 1.00 |