Cattell argued that heredity has no effect on normal personality

When Charles was at dinner with some colleagues, he was asked a question to which he had no inkling of the correct answer. Rather than simply say "I'm sorry, but I don't know the answer," Charles started taking guesses at what the correct answer was

This tendency that describes the reluctance of men to reveal their uncertainty is called __________ syndrome. a. uncertainty compensation b. ambiguity conversion c. male answer d. amorphic cover-up

Studies of IQ correlations between twins and other relatives show that the average correlation for

A) identical and fraternal twins decreases into adulthood. B) fraternal twins living together is stronger than the average correlation for identical twins living apart. C) twin and nontwin siblings living together is stronger than the average correlation for those living apart. D) fraternal twins living apart is stronger than the average correlation for nontwin siblings living together.