Table 7.
Study 2 Age Differences in African Americans
| Conscientiousness facet | Young M (SD) | Middle M (SD) | Old M (SD) | d12 (CI) | d23 (CI) | d13 (CI) | r (CI) |
|---|---|---|---|---|---|---|---|
| Industriousness | 3.93 (0.61) | 4.05 (0.53) | 3.94 (0.62) | .23 (−.14, .61) | −.20 (−.60, .2) | .02 (−.38, .42) | .04 (−.15, .23) |
| Purposefulness | 3.78 (0.71) | 3.82 (0.70) | 3.77 (0.62) | .05 (−.32, .43) | −.09 (−.57, .38) | −.02 (−.45, .35) | −.01 (−.20, .18) |
| Dutifulness | 4.15 (0.59) | 4.28 (0.50) | 4.18 (0.59) | .23 (−.18, .62) | −.18 (−.63, .22) | .07 (−.34, .46) | .01 (−.18, .20) |
| Efficiency | 3.84 (0.76) | 3.93 (0.79) | 3.83 (0.65) | .12 (−.28, .48) | −.15 (−.61, .30) | −.02 (−.42, .38) | .02 (−.17, .21) |
| Organization | 3.92 (0.65) | 4.16 (0.53) | 3.96 (0.76) | .43 (.04, .82) | −.30 (−.76, .15) | −.01 (−.39, .39) | −.04 (−.23, .15) |
| Orderliness | 3.75 (0.54) | 3.73 (0.44) | 3.71 (0.53) | −.05 (−.45, .35) | −.04 (−.39, .49) | −.07 (−.43, .30) | −.07 (−.26, .12) |
| Orderliness | 3.85 (0.74) | 3.86 (0.60) | 3.84 (0.80) | .01 (−.37, .39) | −.02 (−.48, .43) | −.01 (−.42, .37) | −.03 (−.22, .16) |
| Perfectionism | 3.78 (0.65) | 3.77 (0.58) | 3.68 (0.82) | −.0 (−.41, .36) | −.14 (−.56, .31) | −.14 (−.54, .25) | −.08 (−.27, .11) |
| Rationality | 3.49 (0.56) | 3.44 (0.53) | 3.43 (0.48) | −.09 (−.47, .30) | −.03 (−.44, .42) | −.12 (−.52, .26) | −.10 (−.29, .09) |
| Conscientiousness | 3.89 (0.58) | 3.92 (0.64) | 3.92 (0.65) | .05 (−.34, .44) | .00 (−.47, .44) | .05 (−.35, .43) | −.01 (−.20, .18) |
| Impulse Control | |||||||
| Cautiousness | 3.26 (0.55) | 3.41 (0.61) | 3.51 (0.57) | .29 (−.13, .69) | .18 (−.25, .65) | .44 (.03, .84) | .08 (−.11, .27) |
Note. n = 49 for Young; n = 30 for Middle; n = 29 for Old. d12 = standardized mean difference between middle age (40–59) and young age (20–39); d23 = standardized mean difference between old age (60 and above) and middle age; d13 = standardized mean difference between old-age and young-age groups; r = correlation with age; CI = 95% confidence intervals. Bold values indicate p < .05.