Which figures BEST approximates the proportion of adults who say they engage in intercourse by age 20?

Samuel became upset when he found out his roommate Jake ate the last slice of pizza in the fridge. He responded by hiding Jake's algebra homework. Hiding Jake's homework in response to Jake's pizza eating is an example of ___________

a. sadness b. pessimism c. anger d. aggression

What is the name of an intelligence test that measures children's ability to integrate different stimuli simultaneously and to demonstrate step-by-step thinking?

a) Wechsler Intelligence Scale for Children – Fourth Edition (WISC-IV) b) deviation IQ scores c) Stanford-Binet Intelligence Scales, Fifth Edition (SB5) d) Kaufman Assessment Battery for Children, Second Edition (KABC-II)