Correlation Research, Using Self-Report Data, Has Investigated the Link Between

Multiple Choice

Correlation research, using self-report data, has investigated the link between sleep duration and mortality risk. The two key findings are: people who consistently sleep less than seven hours exhibit ____ mortality risk; people who consistently sleep more than eight hours exhibit ____ mortality risk.

A) an increased; a decreased
B) a decreased; an increased
C) an increased; an increased
D) a decreased; a decreased