________ remains highly correlated with divorce.

A) Intelligence
B) Sexual creativity
C) Marrying young
D) Female unemployment

According to Sternberg, consummate love requires only passion and intimacy.

Tonya conducted a research project in which she arranged for people of different ages to complete a survey of life satisfaction. She then compared the reports of life satisfaction across different age levels. Tonya's research best illustrates a

A) longitudinal study.
B) normal curve.
C) cross-sectional study.
D) standard deviation.

Which statement does NOT accurately describe risk factors for atherosclerosis

A)  High blood pressure is one of the established risk factors for atherosclerosis. 
B)  Having elevated cholesterol levels increases the risk of developing atherosclerosis. 
C)  Atherosclerosis is more prevalent in women than in men. 
D)  The risk for developing atherosclerosis increases with age.

An organic methyl molecule attached to part of a DNA strand has been identified as a(n)

A) genome.
B) double helix.
C) epigenetic mark.
D) self-regulating gene.

A child understands that if an elephant is bigger than a bear and a bear is bigger than a cat, then an elephant is bigger than a cat. This demonstrates the child's understanding of _________.

A) conservation
B) transitivity
C) class inclusion
D) decentration