Table 2 The sample size and the statistic evaluation for each investigation
Group | Type of investigation | Statistic | N (male/female) | Mean age (years) | UG/PG (n) |
|---|---|---|---|---|---|
Exper | Internal consistency | Cronbach’s α | 54 (20/34) | 70.3 | 29/25 |
Average inter-item correlation | |||||
Test–retest reliability | Intraclass correlation coefficients (ICCs) | 18 (11/7) | 74.5 | 13/5 | |
Discriminant validity | Paired t-test | 54 (20/34) | 70.3 | 29/25 | |
Ability to detect change | Cohen’s d | 54 (20/34) | 70.3 | 29/25 | |
NonExper | Concurrent validity | Pearson correlation | 66 (29/37) | 69.5 | 30/36 |