Researchers distinguish between the subjective experience of crowding and

Thomas Holmes and Richard Rahe developed the Social Readjustment Rating Scale (SRRS) to measure change due to

a. natural disasters. b. major life events. c. social difficulties. d. negative life events. e. stressors.

Socioemotional selectivity theory provides an explanation for

a. older people's positivity bias. b. older people's greater vulnerability to stereotype threats involving memory. c. the Flynn effect. d. the contextual perspective.