Table 3.
Phenotypic correlations between measures of sensation seeking and lack of planning, and the proportion of correlations attributed to genetic and environmental factors.
| Proportion of Correlation Due to: |
||||
|---|---|---|---|---|
| Phenotypic Correlation |
Additive Genetics |
Shared Environment |
Unshared Environment |
|
| Sensation Seeking & Lack of Planning Factorsa | ||||
| Females | .2 7 | .00 (−.0 7, .07) | .12 (−.0 5, .20) | .88 (.8 2, .93) |
| Males | .24 | .24 (.18, .31) | .00 (−.02, .02) | .76 (.69, .82) |
| ZSS Total & MPQ Control Scales | ||||
| Females | .4 7 | .17 (−.0 3, .37) | .09 (−.0 8, .27) | .74 (.6 8, .80) |
| Males | .42 | .27 (.19, .34) | .00 (−.02, .02) | .73 (.67, .80) |
Notes: MPQ=Multidimensional Personality Questionnaire (Tellegen, 1982); ZSS=Zuckerman Sensation Seeking Scale (Zuckerman, 1964)
a
The Lack of planning factor and sensation seeking factor were both derived from factor analyses conducted in the current study.