Measurement and MethodologyStatistical Procedures (GRE Psychology): Questions 4  8 of 20
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Question number: 4
» Measurement and Methodology » Statistical Procedures
Question
An IQ of 146 is approximately how many standard deviations from the mean?
Choices
Choice (4)  Response  

a.  5 

b.  3 

c.  2 

d.  4 

Question number: 5
» Measurement and Methodology » Statistical Procedures
Question
In a normal frequency distribution, 32 % of the cases
Choices
Choice (4)  Response  

a.  fall between 1 standard deviation above and 1 standard deviation below the mean 

b.  fall beyond 1 standard deviation above and 1 standard deviation below the mean 

c.  fall beyond 2 standard deviations above and 2 standard deviations below the mean 

d.  fall between the mode and the median 

Question number: 6
» Measurement and Methodology » Statistical Procedures
Question
If the GRE Psychology Subject Test had a standard error of zero, then a test taker that took the test two times would necessarily receive
Choices
Choice (4)  Response  

a.  the same score on each test 

b.  two scores that correlated perfectly with the test taker’s aptitude 

c.  two scores that were above the mean 

d.  two perfect scores 

Question number: 7
» Measurement and Methodology » Statistical Procedures
Question
The test statistic t is used to ________.
Choices
Choice (4)  Response  

a.  Describe treatment means. 

b.  Evaluate ordinal or nominal data from a twogroup experiment. 

c.  Evaluate interval or ratio data from a twogroup experiment. 

d.  Evaluate interaction effects in factorial experiments. 

Question number: 8
» Measurement and Methodology » Statistical Procedures
Question
The term zeroorder correlation coefficient refers to a correlation
Choices
Choice (4)  Response  

a.  between two variables 

b.  that has yet to be tested 

c.  that is close to 0.00 

d.  that does not achieve statistical significance 
