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(Answer) PSYU 432 Quiz for Chapter 3

QUESTIONS

Question 1

Yards gained by running backs during a football game is an example of which type of scale?

  • nominal
  • ordinal
  • interval
  • ratio

Question 2

Which of the following is an example of a strong negative correlation?

  • Shoe size and intelligence
  • The number of miles on a car and the amount of money spent on repairs.
  • The temperature in the summer and the number of space heaters sold.
  • The amount of hours a student studies and test score.

Question 3

A frequency distribution typically includes what?

  • the average score and a measure of diversion around it
  • each possible score and how often it occurs
  • an estimate of how spread out the scores are
  • an index of how “popular” a particular frequency is

Question 4

A key advantage of meta-analysis over simply reporting a range of findings is what?

  • In meta-analysis more weight can be given to studies that have larger numbers of subjects.
  • In meta-analysis the “art” of the meta-analyst comes into play and allows for knowledgeable manipulation of data.
  • Simply reporting a range of findings can become very confusing when there are more than two studies to report on.
  • Both b and c

Question 5

Test users who treat ordinal data as if they were interval data must be constantly alert to the possibility of what?

  • gross inequality of intervals
  • a highly skewed standard error
  • extreme kurtosis in a graphed distribution of test scores
  • legal challenges from the ACLU

Question 6

The U.S. Navy is highly selective when it comes to applications for Navy Seal training.  A distribution of test scores on a Navy Seal Qualifying and Screening Examination administered to a class of high school seniors would be expected to yield what?

  • a normal distribution of test scores
  • a negatively skewed distribution of test scores
  • a positively skewed distribution of test scores
  • a trimodal distribution

Question 7

A 100-item achievement test is administered to 30 students. Students earn 1 point for each correct answer. In the test results there are three scores of 95. All of the other students score between 10 and 30. What measure of central tendency would be MOST representative of this set of scores?

  • average deviation
  • the median
  • the mode
  • the standard deviation

Question 8

If a person scores at the median on a test, and if the scores on the test are normally distributed, the individual will be in which stanine?

  • the first
  • the fifth
  • the ninth
  • the fifteenth

Question 9

The distribution of scores from a “Citywide Math Test” scores results in a mean of 70 and a standard deviation of 12.  In this test, a score equal to 2 standard deviations above the mean would be what?

  • 72
  • 82
  • 84
  • 94

Question 10

John received a z score of 0.5 on an exam. Peter received a T score of 60 on that same exam. What can be said about their relative performance on the exam?

  • There is not enough information to compare John’s and Peter’s exam scores
  • Peter received a higher raw score than John on the exam.
  • John received a higher raw score than Peter on the exam.
  • The two test-takers actually received the same score on the exam.

ANSWERS

Question 1

Yards gained by running backs during a football game is an example of which type of scale?

  • nominal
  • ordinal
  • interval
  • ratio

 Correct Answer: ratio

Question 2

Which of the following is an example of a strong negative correlation?

  • Shoe size and intelligence
  • The number of miles on a car and the amount of money spent on repairs.
  • The temperature in the summer and the number of space heaters sold.
  • The amount of hours a student studies and test score.

Correct Answer: ….

Question 3…..

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