Dr. Abdul wants his research findings to be representative of the students at State U. He makes sure that every student has an equal chance of being a participant, thereby ensuring that he has engaged in____ sampling.?

Psychometric psychologists design and evaluate tests of mental abilities and aptitude

Indicate whether this statement is true or false.

According to the article Spare the Rod, about punishment and aggression, the correlations between aggression and SES were found to range between:

(a) +.30 and +.70 (b) -.45 and -.62 (c) -.24 and -.15 (d) -.67 and +.83