It has 6 Domain Scales and 40 Facet scales

There are 240 yes/no questions

 It has 5 Domain Scales and 45 Facet scales

Items are rated on a 5 pt. scale from Strongly Disagree to Strongly Agree

phenotypic variability is completely accounted for by genotypic variability

genes completely account for the development of that trait

there is no effect of shared environment

there is no effect of environment

diverged from self-report data

central traits 

social traits

source traits

cardinal traits

an ultimate explanation

a proximate explanation 

a differential explanation

an inferential explanation

Testosterone Sensitivity Theory

introverts are less likely to seek stimulation in the environment

source

temperament

neurological

ability

about their reputation

that their partner will form an emotional bond with another person

that their partner will leave them for another person

 about paternity of the offspring