The babbling of infants in all cultures sounds much the same, but by 9 or 10 months of age,
a. children from industrialized cultures display a greater variety of sounds.
b. inborn factors result in cultural differences in languages.
c. infants repeat the sounds used in the home.
d. holophrases are uttered.
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.
According to Locke and Latham, what feature(s) must a goal have to be effective?
a. It must be specific. b. It must be simple. c. It must be specific and difficult. d. It must be general and simple.
Dr. Jordan's research focuses on how social communication changes from early childhood to adolescence in children diagnosed with Down syndrome. Her research addresses which of the key issues related to intelligence
a. underlying components and mechanisms of intelligence b. how cognitive and intellectual development changes over time c. the roles of genes, brain structure and function, heredity and environment impact intelligence d. the role early education plays in intelligence
_____ are to chromosomes as _____ are to axons.
A) Telomeres; neural networks B) Genes; myelin sheaths C) Telomeres; myelin sheaths D) Genes; neural networks