Table 4.
Standardized Coefficients for Predictors (P) of Need for Cognition When Variables With Each Category Were Considered Independently, Simultaneously Within, and Simultaneously Across Categories.
| Independently
|
Simultaneously within category
|
Simultaneously across categories
|
||||
|---|---|---|---|---|---|---|
| P | P × Age | P | P × Age | P | P × Age | |
| Cognitive variables | ||||||
| Space | .39* | .02 | .20* | −.03 | .00 | .13 |
| Vocabulary | .38* | −.01 | .26* | −.04 | −.08 | −.19 |
| Reasoning | .38* | −.01 | .04 | .09 | −.13 | −.01 |
| Est. IQ | .36* | .02 | −.03 | .02 | .32 | .12 |
| NAART | .33* | −.01 | .02 | .04 | −.12 | −.17 |
| Memory | .29* | .05 | −.04 | −.05 | −.04 | .13 |
| Speed | .27* | −.02 | .06 | −.02 | .08 | −.22 |
| Personality variables | ||||||
| Openness | .60* | .00 | .59* | .03 | .53* | .09 |
| Emotional Stability | .18* | .04 | .12* | .04 | .02 | −.03 |
| Agreeableness | .17* | −.01 | −.03 | −.03 | −.06 | .06 |
| Extraversion | .14* | .01 | −.01 | −.03 | −.06 | −.08 |
| Conscientiousness | .13* | .03 | .04 | −.03 | .00 | .03 |
| Social Desirability | .05 | −.01 | .02 | .02 | −.04 | .03 |
| Engagement | ||||||
| Education | .34* | .00 | .31* | −.01 | .11 | .09 |
| Cognitive demands | .12* | .06* | .09* | .04 | .00 | −.04 |
| Cognitive activity | .10* | .06* | .09* | −.06 | .06 | −.01 |
| Occupation | .03 | .01 | .03 | .03 | −.05 | .04 |
| Self-rated cognition and affect | ||||||
| MFQ Novel Forget | .28* | .02 | −.01 | −.01 | −.06 | .09 |
| MFQ News Forget | .27* | .02 | −.01 | −.01 | .11 | −.17 |
| Cognitive Complaints | .26* | .02 | .17* | .06 | .16 | −.10 |
| DEX | .25* | .05* | .09* | .03 | .14 | .04 |
| MFQ Freq. Forget | .22* | .02 | −.02 | .02 | .02 | −.05 |
| Negative Affect | −.22* | −.05* | −.06* | −.01 | −.09 | .00 |
| MFQ Rem. Past | .21* | .02 | .06* | −.06* | −.09 | .15 |
| MFQ Memory/Past | .13* | .01 | −.06* | −.01 | .00 | .01 |
| MFQ Serious Forget | .08* | .01 | −.04 | .00 | −.01 | −.03 |
Note. Est. IQ = estimated Intellectual Quotient; NAART = North American Adult Reading Test; MFQ Novel Forget = MFQ scale assessing troubles remembering what the individual has read in a novel; MFQ News Forget = MFQ scale assessing troubles remembering what has been read in a newspaper or magazine article; DEX = Dysexecutive Questionnaire; MFQ Freq. Forget = MFQ scale assesing the general frequency of forgetting; MFQ Rem. Past = MFQ scale assessing how well the individual remembers things that occurred at different periods in the past; MFQ Memory/Past = how the individual rates her or his memory compared with the way it was at different periods of the past; MFQ Serious Forget = assessed how serious the individual considers her or his memory failures to be. Within each category of variables, predictors were ordered in decreasing magnitude of standardized (absolute) coefficient when considered independently.