why is it particularly useful to study identical twins who were raised in different environments

ATI RN

Psychology 101 Final Exam

1. Why is it particularly useful to study identical twins who were raised in different environments?

A. Differences in brain function can be easily identified.
B. Concordance rates tend to be higher.
C. It is possible that the genetics of twins who have been separated have changed in ways to explain any differences found.
D. It is possible that high concordance rates between identical twins reared together are due to their being treated more similarly than nonidentical twins.

Correct answer: D

Rationale: Studying identical twins raised in different environments allows researchers to understand the impact of genetics versus environmental factors on traits. Choice A is incorrect because differences in brain function can be influenced by a variety of factors and not solely by environmental differences. Choice B is incorrect as concordance rates tend to be higher in identical twins reared together due to shared genetics and environment. Choice C is incorrect because genetics do not change due to being raised in different environments.

2. How do neurotransmitters affect behavior and mental processes?

A. Neurotransmitters have little effect on behavior.
B. Neurotransmitters are chemicals that influence mood, thought, and behavior.
C. Neurotransmitters have a minor role in mental health.
D. Neurotransmitters determine intelligence levels.

Correct answer: B

Rationale: Neurotransmitters are chemicals that influence mood, thought, and behavior, playing a significant role in mental health. Choice A is incorrect as neurotransmitters do have a notable effect on behavior. Choice C is incorrect as neurotransmitters have a major role in mental health. Choice D is incorrect as neurotransmitters do not solely determine intelligence levels.

3. What are influences that are unusual events with a major impact on individual lives because they disrupt the expected sequence of the life cycle?

A. Nonnormative influences
B. Normative history-graded influence
C. Normative age-graded influence
D. Sensitive period

Correct answer: A

Rationale: Nonnormative influences refer to unusual events that have a significant impact on individuals' lives by disrupting the typical life cycle. They are events that are not typical for a specific age or cohort. Normative history-graded influences (choice B) are common influences shared by a specific generation due to historical circumstances. Normative age-graded influences (choice C) are typical events that occur at a particular age for most people. A sensitive period (choice D) is a biologically determined time during which specific experiences have a lasting impact on development.

4. John Bowlby's attachment theory emphasized ________.

A. the social environment in forming attachments.
B. the quality of parental care in forming attachments.
C. the quality of early reinforcers and stimulation in forming attachments.
D. the necessity of independence from parental figures in forming attachments.

Correct answer: B

Rationale: John Bowlby's attachment theory emphasized the quality of parental care in forming attachments. This is because Bowlby believed that a child's early experiences with their primary caregiver, especially the quality of care and responsiveness received, significantly influence the child's ability to form secure attachments. Choice A is incorrect because while the social environment plays a role, Bowlby's theory focused more on the caregiver-child relationship. Choice C is incorrect as it does not capture the central role of parental care highlighted in Bowlby's theory. Choice D is also incorrect as Bowlby's theory actually emphasized the importance of a secure attachment to parental figures for healthy emotional development.

5. Sigmund Freud developed an innovative procedure for treating people with psychological problems, which he called?

A. Behavior modification.
B. Primal therapy.
C. Psychoanalysis.
D. Rational-emotive therapy.

Correct answer: C

Rationale: Sigmund Freud developed psychoanalysis, not behavior modification, primal therapy, or rational-emotive therapy, as an innovative method for treating psychological problems. Psychoanalysis focuses on exploring unconscious motivations to understand and address psychological disorders, making it the correct answer. Behavior modification involves changing behavior through conditioning techniques, primal therapy emphasizes expressing repressed emotions, and rational-emotive therapy aims to identify and change irrational beliefs.