Chromosomes are composed of which of the following?
A) Gametes contributed by ova and sperm
B) Monozygotic and dizygotic genes
C) Molecules of deoxyribonucleic acid
D) Homozygous alleles arranged in ladder fashion
C
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Trevor plans to study the relationship between people's responses to highly stressful situations and their overall health. He decides he must use correlational research, rather than experimental research, to investigate this problem. Trevor most likely chose a correlational method because correlational studies
a. tend to be more accurate than experiments. b. have higher internal validity than experiments when there are two dependent variables. c. can be used to study either positive or negative relationships, whereas experiments can only be used to study positive relationships. d. can be used to investigate factors that would be unethical to manipulate in an experimental study.
African Americans perform worse when they believe they are taking an intelligence test than when they think the test has some other purpose. This has been explained in terms of:
a. racial bias in test content b. the Flynn Effect c. the heritability of intelligence d. stereotype threat
By the age of 3, children with high socioeconomic status, on average, know _____% more words than do children with low socioeconomic status.
A) 15 B) 30 C) 50 D) 70
Freudian psychoanalysis is to __________ as modern psychoanalysis is to __________
a. ego; id c. id; superego b. id; ego d. ego; superego