From: Developing a computer-based assessment of complex problem solving in Chemistry
Descriptive statistics | Item parameters | Person parameters | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
PUC | PR | PS | SRC | SUM | PUC | PR | PS | SRC | SUM | |
M | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | −0.45 | 0.12 | −0.47 | 0.60 | −0.04 |
SD | 0.77 | 1.15 | 0.89 | 1.14 | 0.87 | 1.11 | 1.51 | 1.70 | 0.95 | 0.72 |
Min | −0.83 | −1.49 | −1.37 | −1.91 | −2.56 | −3.17 | −3.81 | −3.70 | −2.14 | −2.01 |
Max | 1.14 | 2.32 | 1.51 | 2.77 | 1.56 | 3.30 | 4.01 | 2.52 | 3.96 | 1.89 |
EAP/PV reliability | 0.71 | 0.65 | 0.76 | 0.65 | 0.83 | |||||
N Items | 7 | 7 | 11 | 6 | 31 |