In puberty, only the primary sex characteristics in the body reach their peak

Jackson and colleagues have suggested that the conscientiousness factor in the five-factor

model should be divided into two separate factors called a. psychoticism and stability. b. methodicalness and pedantry. c. concern and persistence. d. perfectionism and obsession. e. methodicalness and industriousness.

Two sets of observations assessing students' heights and their respective weights are compared. Which of the following is most likely true?

a. The two variables will be both positively and negatively correlated. b. The two variables will be uncorrelated. c. The two variables will be negatively correlated. d. The two variables will be positively correlated.