Measurement and Methodology (GRE Psychology): Questions 13  17 of 88
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Question number: 13
» Measurement and Methodology » Psychometrics, Test Construction, Reliability, Validity
Question
A behavioral observation checklist requires the observer to note whether the person being observed smiles. A key source of error variance resulting from this requirement is
Choices
Choice (4)  Response  

a.  all of the above. 

b.  content variance. 

c.  item sampling variance. 

d.  scoring variance. 

Question number: 14
» Measurement and Methodology » Statistical Procedures
Question
The amount of variance in scores accounted for by a correlation coefficient of . 70 is
Choices
Choice (4)  Response  

a.  14 % if the reliability of the measures is greater than. 70 

b.  less than zero because the correlation is negative 

c.  indeterminate because the correlation is negative 

d.  almost 50 % if the reliability of the measures is + 1.00 

Question number: 15
» 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: 16
» 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: 17
» Measurement and Methodology » Analysis and Interpretation of Findings
Question
A random sample of students in a lecture hall could be obtained by selecting
Choices
Choice (4)  Response  

a.  the students who raise their hands first 

b.  every fifth student seated throughout the room 

c.  the students with credit card numbers ending in 5 

d.  every seventh student who volunteers 
