What method of personality research allows inferences to be drawn concerning the cause of a phenomenon under investigation?

Which of the following is the strongest, plausible correlation coefficient?

Which of the following is NOT true of the case study method?

You could conclude that age and IQ are correlated if research found that

Dr. Harold (Harry, for short) Chest has found that men with high testosterone levels display more aggression than men with low testosterone levels, regardless of physical strength. These results would be classified as

Personality psychologists use people very high and very low on dimensions of personality when conducting research

Which of the following is a possible explanation of a positive correlation between conscientiousness and academic performance.

All of the following should increase the generalizability of research findings EXCEPT

Anxiety decreases academic performance in people high in conscientiousness. This finding is

Ionizing radiation damages DNA by causing                        .