Research Article
Do Depressive Traits and Hostility Predict Age-Related Decline in General Intelligence?
Table 3
Mean WAIS IQs during the lifespan from 50 to 80.
| Followup | | Full scale IQ | Verbal IQ | Performance IQ | Full samples | Mean | SD | Mean | SD | Mean | SD |
| 50-year baseline | 673 | 98.96 | 14.40 | 98.19 | 14.21 | 99.12 | 14.22 | 60-year followup | 513 | 98.84 | 14.33 | 99.21 | 14.59 | 97.65 | 13.80 | 70-year followup | 136 | 94.90 | 14.12 | 96.22 | 13.71 | 93.40 | 14.37 | 80-year followup | 184 | 87.66 | 15.49 | 92.27 | 15.64 | 83.46 | 14.78 | 80-year sample
1 | 184 | | | | | | | 50-year baseline | | 102.10 | 13.79 | 100.85 | 13.84 | 102.31 | 13.28 | 80-year followup | | 87.66 | 15.49 | 92.27 | 15.63 | 83.46 | 14.78 | Difference | | 14.44 | 8.88 | 8.58 | 8.75 | 18.85 | 10.43 | Retest correlation | | 0.82 | | 0.83 | | 0.73 | |
|
|
1Data are for the 184 participants who completed the WAIS at both the 50- and 80-year studies.
|