Most miscarriages are due to
A) chromosomal abnormalities. B) the mother's young age.
C) unhealthy sperm. D) sex-linked traits.
A
Psychology
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When teaching a dog a trick, we use treats as
A) a secondary reinforcement to operant conditioning. B) a neutral stimulus in classical conditioning. C) a positive reinforcement to operant conditioning. D) part of the response chain.
Psychology
The research data suggest that schizophrenia results from
A) biological/genetic causes. B) difficulties in learning. C) poor mother-child relationships. D) troubles in filtering information from one's social world.
Psychology