# Out of 5 points increasing sample size does not

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Chapter 8 Quiz

Question 15   5 out of 5 points It becomes progressively easier to declare statistical significance as the _____ increases .
Answers : standard error value of the critical cutoff sample size number of items on the instrument
Question 16   5 out of 5 points Alpha refers to : Answers :
Question 17   5 out of 5 points Assume for a given study that the null hypothesis asserts that the expected value of a phenomenon is 100 . A research study results in a 95 percent confidence interval reported as [ 98.76 , 105.24 ] . What decision should be made based on this confidence interval ? Answers :
Question 18   0 out of 5 points Increasing sample size does NOT : Answers :
Question 20   5 out of 5 points It is known that the population mean for the verbal section of the SAT is 500 with a standard deviation of 100 . In 2006 , a sample of 400 students whose family income was between \$ 70,000 and \$ 80,000 had an average verbal SAT score of 511 . The point estimate of the mean for this group is _____ , and the 95 percent confidence interval for this group is _____.
Answers : 500 ; [ 501.2 , 520.8 ] 500 ; [ 490.2 , 509.8 ] 511 ; [ 501.2 , 520.8 ] 511 ; [ 490.2 , 509.8 ]
Question 1   5 out of 5 points Meta - analysis involves : Answers :
Question 2   5 out of 5 points According to Cohen 's convention , a value of ___ __ is a small effect size .
Question 3   0 out of 5 points The statement “ The findings based on a sample of 1000 participants were statistically significant , providing evidence for the hypothesis ” would be strengthened by : Answers :
Question 4   0 out of 5 points When Cohen 's d is large ( based on Cohen 's conventions ) , the amount of overlap between the two distributions being compared is less than : Answers :
95 percent .
53 percent .
15 percent 5 percent
Question 5   0 out of 5 points Recent research published by Frumin and colleagues ( 2011 ) in the journal Science addresses the question of whether females ' tears have an effect on males . Imagine that exposure to tears lowered self - rated sexual arousal by 1.27 points , with a margin of error of 0.32 points . The point estimate is : Answers :
Question 180 out of 5 pointsIncreasing sample size does NOT:Selected Answer:increase statistical power.Answers:increase statistical power.decrease standard error.increase the magnitude of the test statistic.increase effect size.
Question 195 out of 5 points
When Cohen's d is large (based on Cohen's conventions), the amount of overlap between the two distributions being compared is less than:
Question 205 out of 5 pointsIt is known that the population mean for the verbal section of the SAT is 500 with a standard deviation of 100. In 2006, a sample of 400 students whose family income was between \$70,000 and \$80,000 had an average verbal SAT score of 511. The point estimate of the mean for this group is _____, and the 95 percent confidence interval for this group is _____.
Question 15 out of 5 pointsMeta-analysis involves:
Question 25 out of 5 pointsAccording to Cohen's convention, a value of _____ is a small effect size.Selected Answer:
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