In _________ studies, the assignment of participants to groups cannot be made randomly
a. correlational studies c. experimental studies
b. quasi-experimental studies d. clinical studies
B
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In a study by Sameroff et al. (1993), as the number of risk factors in the child's environment __________, IQ scores __________.
A. increased; increased B. increased; decreased C. decreased; remained the same D. decreased; decreased
Highly coordinated children are picked out at an early age by coaches and given special opportunities to excel at sports. Introverted children avoid frequent social situations and become unusually comfortable spending time alone. Both of these phenomena illustrate __________.
A. the power of the phenotype over the genotype B. genotype-environment correlations C. the polygenic effect of chromosomes on behavior D. how the environment shapes one's genetic endowment
A two-factor research study has 2 levels of factor A and three 3 of factor B with n = 8 participants in each treatment condition. For this study, what is the value for dfbetween treatments?
a. 3 c. 5 b. 4 d. 6
LaKeita and Monica are having a discussion about the nature of human ideas and emotions. LaKeita states, “You know that we are all born with a basic structure from which all other ideas and emotions develop!” Her belief that ideas and emotions are inborn most closely resembles the beliefs of philosopher ________
a. Rene Descartes b. David Hume c. Aristotle d. Plato