____ is characterized by feelings of apprehension and lack of control over upcoming events that might be threatening

In multifactor research, possible results fall into which two categories?

a. Good and bad b. Interactive and singular c. Main effects and interactions d. Correlational and causal

The average IQ of this year's graduating class at Bradbury High is 112 points. The average IQ of the graduating class from 25 years ago was 107 points, and the average IQ of the graduating class from 50 years ago was 101 points. This trend is consistent with

a. heritability. b. shifts in reaction range. c. the Flynn effect. d. reciprocal determinism.