A researcher is interested in whether high school students who play sports have a higher or lower body mass index (BMI) than students in the general population. The researcher is unsure whether playing sports will decrease body mass (due to more calories burned) or increase body mass (due to more muscle mass). He compares their average BMI to that of students in the general population and finds
that zobt = +1.92 . This is a _____ test and the researcher should conclude _____.
a. one-tailed; that students who are athletes have significantly higher BMIs.
b. two-tailed; that students who are athletes have significantly higher BMIs.
c. one-tailed: that students who are athletes do not have significantly higher BMIs.
d. two-tailed: that students who are athletes do not have significantly higher BMIs.
d
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When we ask whether a category or diagnosis is useful, we are asking about its
a. kappa. b. coverage. c. validity. d. reliability.
David is listening to his grandson tell him a story. He is finding that he is having difficulty following what his grandson is saying. When his grandson says, "I had fun," David thinks he said "I had sun." What is David experiencing?
A. presbycusis B. presbyopia C. sound muffling D. localized auditory inhibition
Knowing that an object has not increased in weight when the spatial orientation (or shape) has changed is known as
A. horizontal decalage B. object permanence C. conservation of weight D. accommodation
_____ were influential in early studies of cognitive learning.
A. William James and Ivan Pavlov B. B.F. Skinner and Edward Thorndike C. Wolfgang Kohler and E.C. Tolman D. Albert Bandura and R.H. Walters