What percent of variance in sexual orientation does current evidence suggest that genes account for?

What are confounding variables?

a. Variables that most researchers forget to consider. b. Variables that make it look like the two original variables are causing each other. c. Variables that determine when related items have a negative correlation. d. Variables that determine when related items have a positive correlation.

A trait of many schizophrenic individuals that precedes the onset of their psychoses is ______

a. creativity c. introversion b. impulsivity d. neatness