Figure 12.
Path analysis model of the effects of the process factors and overall recall on IQ. Each box represents a variable. The single-headed arrows connecting the variables represent hypothesized direct effects of one variable on another; the numbers next to single-headed arrows are standardized path coefficients and can be interpreted as standardized regression coefficients. The direct paths from the factors to IQ were constrained to zero in the final model, the estimates from the non–constrained model are provided in italics for completeness. In fitting the model, the process factors were allow to correlate but the paths are omitted from the diagram for clarity. The R2 values are the proportion of variance in Overall Recall accounted for by the process factors. N = 101.