A psychologist compares children's reading ability on the first day of school to their ability on the last day. What type of research is this?
a. Single-blind
b. Double-blind
c. Cross-sectional
d. Longitudinal
d
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What observation persuaded Piaget that young children lack the concept of object permanence? a. They don't reach around a barrier to retrieve a toy
b. They look away from a toy after seeing it for only a few seconds. c. They say that a row of coins has more after they are spread out. d. They say that a ball of clay weighs more after it has been squashed flat.
Which of the following has a strong link to Alzheimer's disease?
a. Accumulation of harmful proteins in the brain b. Prolonged deficiency of vitamin B1 c. Difficulty metabolizing phenylalanine and gluten d. A low ratio of dopamine to serotonin in the brain
More so than their heterosexual peers, LGBT adolescents experience ______.
A. acceptance and support from their friends B. intimacy in their romantic relationships C. conflict in their romantic relationships D. harassment and victimization by peers
The DSM-IV-TR anxiety disorders were divided into __________ chapters in the DSM-5
a) 2 b) 3 c) 4 d) 5