The point at which a person can detect a stimulus 50 percent of the time it is presented is called the __________
a. absolute threshold
b. difference threshold
c. range threshold
d. noticeable threshold
Answer a % correct 68 a= 68 b= 13 c= 2 d= 17 r = .36
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Groups tend to display tend-and-befriend responses to long-term threats rather than imminent ones.
a. True b. False
Which of the following approaches of assessing behavior may include quantification of heart rate, muscle tension, and brain waves?
a. Physiological measurement of behavior b. Self-reports of behavior c. Direct observation of behavior d. Analysis of cognitive processes
Identify one aspect of the procedures that would likely decrease any reactivity associated with the observations.
Read this description of a study and answer the question that follow. A reporter at a university newspaper sought to gather evidence about the quality of teaching at the university. For one week at the beginning of the semester she attended 5 different, large-lecture classes each day, each with a different instructor. She asked 4 other reporters to do this too (they all attended different classes), and she trained them regarding the ratings they would make. The reporters pretended to be students, but sat in the back of class so the instructor wouldn't notice their observations. Using 10-point rating scales, they rated each instructor on five dimensions: interesting, organized, informative, friendly, and respectful. They summarized their findings and reported that, in general, the quality of teaching at the university is very good.
According to the introductory discussion about perceptual processes,
a. humans have relatively primitive perceptual processes, compared to models created by artificial intelligence. b. although perception appears to be straightforward, it actually requires more cognitive effort than tasks such as problem solving. c. unlike other cognitive tasks, perception requires only bottom-up processing. d. perception requires both information from the stimulus and knowledge about previous perceptual experiences.