In Milgram's second shock experiment, when the victim would scream in increasingly desperate ways as shock increased, what percentage of Yale students used the maximum voltage?

A researcher studying life-span development, interviews a group of 70-year-olds and explores their lives backwards. Her goal is to see how their current situation has been affected by their past life history. She is using the ______ method

a. longitudinal c. naturalistic observation b. cross-sectional d. biographical

Carmen has fuzzy vision because her eyeball is too long. Carmen has the condition called

a. hyperopia. b. myopia. c. astigmatism. d. presbyopia.