Which of the following is an example of a gross motor skill?
A. Four-year-old Betty solves simple mathematical calculations.
B. Jon, a two-year-old, walks up the stairs, two feet to a step.
C. Mia, a three-year-old, draws vertical and horizontal lines.
D. Five-year-old Paul ties his shoelaces without help.
Answer: B
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For a repeated-measures study comparing two treatment conditions, a researcher obtains Cohen's d = 0.50 for a sample of n = 4 scores with a variance of s2= 16 . What is the value of the sample mean?
a. MD = 2 c. MD = 8 b. MD = 4 d. MD = 16
Research on interventions has shown that
a. interventions that target specific groups, such as the elderly, women, and minority groups are considered too specialized and will not likely be utilized in the future. b. determinants of health behaviors include individual level processes as well as processes at the family societal level. c. the effectiveness of psychological interventions is still weak, especially compared to medical interventions. d. cultural level differences are minimal beyond the distinction between collectivist and individualist cutlures.
In most people, the left hemisphere of the brain is in charge of
a. language. b. art. c. pattern recognition. d. music.
When we watch a film in the theatre, we perceive the sound as coming from the actors' lips instead of from the speakers arrayed around the screen. This is probably due to a. the superiority of modern surround sound systems
b. our use of vision to aid the localization of sound. c. the construction of the theatre, which is designed to reflect sounds from the back and sides of the building. d. our inability to localize sounds above a certain amplitude.