Answer:
D) Room temperature
Explanation:
For the experiment to work and have good reliable results there should only be one variable. In this case, the variable is the noise level, and the different room temperatures would influence the experiment's results.
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A brief treatment trial tested an adaption of the Penn State Worry Questionnaire (PSWQ) for weekly assessment of worry. 28 nonclinical high-worriers received instruction in cognitive restructuring strategies, with 14 of them acting as a control group in a lagged waiting-list design.
<h3>What do you mean by stoeber, j., & bittencourt, j. (1998)?</h3>
The Penn State Worry Questionnaire-Past Week (PSWQ-PW) was highly reliable and substantially valid in assessing both (a) the weekly status of worry and (b) treatment-related changes in worry, according to the results. The average Cronbach's alpha was 0.91, and the average convergent correlation with a past-week adaptation of the Worry Domains Questionnaire [Tallis, F., Eysenck, M. W. and Mathews (1992). a survey for measuring nonpathological anxiety [Zielke, M. and Kopf-Mehnert, C., Personality and Individual Differences, 13, 161–168.] was 0.63, and pre-post progress on the PSWQ–PW had a 0.71 connection with the Questionnaire of Changes in Experiencing and Behavior (1978). Questions about changing one's experiences and behaviors. Germany's Weinheim: Beltz Test Gesellschaft.
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It is dumped, untreated, into the ocean.<span>
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