A 3D plot of the Eigen analysis of relationships among all questions and the four major groupings of the FTI

A 3D plot of the Eigen analysis of relationships among all questions and the four major groupings of the FTI

Regardless of the many studies linking aspects of various diseases with neural meaningful link systems, no single neurotransmitter or hormone system is likely to be responsible for the full array of symptoms in any disease pattern. Instead, a multitude of factors influence how each of these neural systems impact one another, affect other neural systems, modifiers and genomic activational events, and contribute to cognitive and behavioral outcomes. Much further investigation is necessary to establish substantive links between the temperament dimensions of the FTI and specific bio-behavioral illnesses.

Materials

The Cronbach’s alpha coefficients for the U.S. sample were: 0.79 for both the Curious/Energetic and Cautious/Social Norm Compliant constellations; 0.80 for the Analytical/Tough-minded subscale; and 0.78 for the Prosocial/Empathetic scale.

Each colored ball is a specific question on the FTI. Yellow, Curious/Energetic; Blue, Cautious/Social Norm Compliant; Red, Analytical/Tough-minded; Green, Prosocial/Empathetic; e = eigenvector. The position of each colored ball (in three-dimensional space) indicates the correlation coefficient calculated by the Eigen analysis for each item on the FTI. The lines connect the questions within each scale. The length of each line is a rough estimate of the covariance between items, or the eigenvector. The four scales are clearly separable.

Correlation Analyses

Mean scale scores for responses to “Sex is an essential part of a successful relationship.” The data describe attitudes about sexual activity and relationships for the four scales. For the Curious/Energetic scale, both men and women showed a positive correlation between their scale scores and level of endorsement for sexual activity in a relationship (men: r = 0.13, p = 3.89 ? 10 -69 ; women: r = 0.16, p -100 ); the correlation for women was significantly higher than the one for men (p = 0.0024). Read More A 3D plot of the Eigen analysis of relationships among all questions and the four major groupings of the FTI