According to Piaget's distinction between signs and symbols, a ___ is an example of a sign, and a ___ is an example of a symbol
a. pencil representing a telescope, stack of blocks representing a house
b. thumbs-up gesture representing a job well done, pencil representing a telescope
c. stack of blocks representing a house, numeral representing a given number of objects
d. numeral representing a given number of objects, thumbs-up gesture representing a job well done
B
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What percentage of adults between the ages of 65 and 74 has some degree of hearing loss?
A. 15 percent B. 30 percent C. 50 percent D. 75 percent
Jordie went to have his hearing tested. Some of the sounds that were presented during the test were so faint that he was unable to detect them. These faint sounds would fall below Jordie's:
a. difference threshold for sound b. adaptation threshold for sound c. absolute threshold for sound d. level for perceptual invariance
Which of the following would be classified as a personal frustration?
a. You are late to class because you overslept. b. You are late to class because of a flat tire. c. You are late to class because of a traffic jam near campus. d. All of these would be personal frustrations.
Suppose you drew a random sample from a population where the mean is 100 . The standard error of the sampling distribution is 10 . The mean for your sample is 110 . What could you conclude about your sample?
a. The sample mean does not occur very often by chance in the sampling distribution of means and probably did not come from the given population. b. The sample mean occurs quite often by chance in the sampling distribution of means and probably did not come from the given population. c. The sample mean does not occur very often by chance in the sampling distribution of means but probably did come from the given population. d. The sample mean occurs very often by chance in the sampling distribution of means and probably did come from the given population.