A researcher randomly assigns participants to complete a crossword puzzle with or without music. The time it takes to complete the crossword puzzle is compared between the two groups. In this example, the experimental group is ______.
A. the crossword puzzle group
B. the no music group
C. the time to complete puzzle group
D. the music group
Answer: D
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According to Freud, the portion of the personality that induces people to act with reason and deliberation is:
a. the id b. the ego c. the superego d. the Oedipus
Sarah, a graduate student in psychology, just heard about a five-year-old child who has already learned calculus. She is thinking about conducting an in-depth study of the child for her dissertation. Sarah is considering which research method?
A) naturalistic observation B) experiment C) correlational D) case study
Adoption is a good example of a __________ frequently used in child development research
a) correlational design b) naturalistic observation c) natural experiment d) structured experiment
Which of the following statements best illustrates the cephalocaudal principle of infant development?
A. The spinal cord develops before the arms become dexterous and agile. B. Babies lose their swimming and walking reflexes by 2 years of age. C. Children learn to walk before they determine their preferred mode of handedness. D. Children gain control over their head movements before they can control their arms.