Adolescents tend to be higher in sensation seeking than adults
Indicate whether this statement is true or false.
True
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You are about to give your first speech in front of your speech class and are nervous about getting up in front of everyone. As you anticipate getting up in front of the class, you begin to feel butterflies in your stomach and a pounding in your chest. Using this example, explain how the sympathetic and parasympathetic divisions of the autonomic nervous system work together to help your body
react to this situation. What will be an ideal response?
Julie finds that the number of hours she sleeps each night is related to the scores she receives on quizzes the next day
As her sleep approaches 8 hours, her quiz scores improve; as her sleep drops to 5 hours, her quiz scores show a similar decline. Julie realizes that ______________________. a) there is a negative correlation between the number of hours she sleeps and her quiz grades b) there is a positive correlation between the number of hours she sleeps and her quiz grades c) her low quiz scores are caused by sleep deprivation the night before a quiz d) she should sleep about 10 hours a night to ensure 100 percent quiz grades
The cohort effect is a potential problem in cross-sectional research
Indicate whether the statement is true or false
Validity refers to
A) whether a test measures what it is supposed to. B) whether the number of items on a scale is too large. C) whether obtained results are reliable over time. D) the degree of strength of the effects found. E) the extent to which the test was administered to the correct sample of people.