Table 2.
Likelihood ratio tests to test the influence of the Search extension variable onto solution time/accuracy/search.
| df | AIC | BIC | logLik | deviance | χ2 | χ2(df) | p-value of χ2 | |
|---|---|---|---|---|---|---|---|---|
| Acc:Base | 5 | 2170.6 | 2198.1 | −1080.3 | 2160.6 | |||
| Acc:Full | 6 | 2124.3 | 2157.3 | −1056.1 | 2112.3 | 48.28 | 1 | <.001 |
| Search: Base | 5 | 3952.1 | 3978.6 | −1971.0 | 3942.1 | |||
| Search: Full | 6 | 3924.2 | 3956.1 | −1956.1 | 3912.2 | 29.84 | 1 | <.001 |
| Search: Full + RT | 7 | 3295.8 | 3333.0 | −1640.9 | 3281.8 | 630.41 | 1 | <.001 |
| RT:Base | 6 | 11028 | 11160 | −5558.1 | 11116 | |||
| RT:Full | 7 | 11095 | 11132 | −5540.5 | 11081 | 35.12 | 1 | <.001 |
| RT:Exploratory | 9 | 11092 | 11139 | −5536.8 | 11074 | 7.47 | 2 | <.05 |
Note. df = degrees of freedom (of respective model), AIC = Akaike information criterion, BIC = Bayesian information criterion, logLik = log-likelihood, χ2 = Chi-square, RT = solution time, Acc = Accuracy, Search = search for potential solutions, Base = Baseline model, Full = Baseline model + Search extension variable, Full + RT = Full model with solution time as additional predictor; Exploratory = Exploratory model with interaction term including a measure for general problem solving ability. For specification of Baseline, Full, Full + RT and Exploratory model, see Table 1a.