Get Best Liberty University COUC 521 Quiz 2 

Get Best Liberty University COUC 521 Quiz 2

1. The variance is determined to be 36. What would be the standard deviation?
2. When looking at a list of student’s test scores, the teacher notices that one test score is significantly lower than the majority of the scores. This is known as a/an:
3. In studying the correlation between the number of hours studied and scores on the comprehensive exam, the researcher found a correlation of .30. According to Cohen’s guidelines, what would this mean regarding the strength of the relationship?
4. A group of researchers is attempting to design an instrument that will measure self-esteem. The researchers have an extensive list of traits that may contribute to this construct. Which analysis may assist the research team in narrowing the list of traits into a few dimensions?
5. In comparing Spearman’s Rho to a Phi Coefficient, one would generally prefer to use Spearman’s Rho when correlating:
6. In a follow-up study, a researcher reported that the correlation is .85. In the initial study, the correlation was .78. This means there is a/an:
7. The teacher calculates the highest score as being 97 and the lowest score as being 75. What is the range?
8. A researcher is looking for a specific study report, in which he/she knows the kurtosis value. He reads the following kurtosis values in various reports. Which one supports a mesokurtic distribution?
9. When comparing the four scales of measurement, what distinguishes the interval scale from the ratio scale?
10. A research team designed a demographic questionnaire to collect information about participants. Which of the following variables identified on the questionnaire provides an example of an ordinal scale variable?
11. Which type of normalized standard score is widely used in education and categorizes test performance in nine broad units?
12. Denise took an aptitude test that was first taken by a large group of male engineers, on whom the test was standardized. Denise is a nurse. What might be a concern when interpreting her test scores?
13. A type of standard score with a mean of 100 and a standard deviation of 15 is:
14. A raw score can be transformed into any type of standard score by first:
15. The group scores to which each individual is compared are referred to as:
16. Raw scores:
17. A T score has a fixed mean of __________ and a fixed standard deviation of __________.
18. A school interested in measuring students’ progress in academic subjects throughout the school years might choose to use the:
19. In a test that results in a report that describes how well the test taker does in comparison with other individuals, it is important to consider whether the:
20. Z scores, T scores, and deviation IQs are examples of:

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