During this stage, Piaget proposes, children become capable of using mental operations, which allow them to organize and manipulate information mentally instead of relying on physical and sensory associations
a. sensorimotor
b. preoperations
c. concrete operations
d. formal operations
Answer: C
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a. changes that relate to pressure and conflict. b. changes that relate to major life events. c. changes that relate to a wide variety of stressful experiences. d. changes of all varieties.
A karyotype is a map of
a) genes b) chromosomes c) amino acids on DNA d) the double helix of DNA and RNA
The creation and wide-spread administration of intelligence tests in developed countries __________
a) indicated an interest in separating the intelligent from the non-intelligent. b) faced significant resistance from parents and teachers. c) demonstrated that some children did not have the intellect to learn new information. d) signaled the increased importance of primary school education.
A researcher uses random-digit dialing to conduct a survey using telephone interviews. Suppose that many people don't answer their phone for the survey because when they check the caller identification, they don't recognize the phone number. This represents the potential problem of
A. interviewer bias. B. selection bias. C. response rate bias. D. nonprobability bias.