If you look at a pinpoint of light in a dark room, the light appears to move even though it is in fact stationary. This illusion of movement is called the ____ effect

In humans, prenatal hormone levels:

A) alter physical characteristics, but not postnatal behavior. B) alter postnatal behavior, but not physical characteristics. C) alter both physical characteristics and postnatal behaviors. D) alter neither physical characteristics nor postnatal behaviors.

Adolescents from lower SES families participate in fewer extracurricular activities because

A) they are more likely to be holding after-school jobs and are therefore less able to participate in extracurricular activities. B) only adolescents with more positive self-concepts participate in extracurricular activities. C) participating in extracurricular activities is related to higher levels of self-esteem. D) their communities offer a wider variety of extracurricular activities.