Which of the following relationships exist between intelligence and a subset of individuals with Down Syndrome called mosaics?
a. Mosaics have severely impaired IQs relative to the mild retardation seen in non-mosaic Down syndrome patients.
b. Mosaics have relatively normal IQs relative to other Down syndrome patients.
c. IQ tests for non-mosaic Down Syndrome patients are more accurate and have greater validity in representing an IQ score.
d. There is no difference in IQ between mosaic and non-mosaic Down syndrome patients.
Answer: b. Mosaics have relatively normal IQs relative to other Down syndrome patients.
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Regarding the disuse explanation of forgetting, which of the following statements is FALSE?
a. There is evidence that memories not retrieved and "used" or rehearsed become weaker over time. b. Disuse does not explain why we are able to recover seemingly forgotten memories through redintegration, relearning, and priming. c. The main cause of senility in old age is the increased failure of the elderly person to retrieve and "use" their old and new memories. d. Disuse offers no more than a partial explanation of long-term forgetting.
Using a convenience sample instead of a random sample of subjects is a threat to which kind of validity?
a. internal b. external c. construct d. statistical
The learning objectives found at the beginning of each section:
a. should be read before you read the chapter. b. should be read after you read the chapter. c. should be used to study for tests. d. all of these.
Which of the following is true of people who participate in sleep deprivation experiments?
A. Their creativity levels remain unchanged. B. They show a decline in their logical reasoning abilities after the experiments. C. They are more alert than people who do not take part in such experiments. D. Most of them suffer permanent consequences of temporary sleep deprivation.