Statistics & Research MethodsInferential Statistics (CBSENET (Based on NTAUGC) Psychology (PaperII)): Questions 57  61 of 72
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Question number: 57
» Statistics & Research Methods » Inferential Statistics
Appeared in Year: 2014
Question
What would be the degrees of freedom for a chisquare based on 4 5 contingency table?
(June)
Choices
Choice (4)  Response  

a.  9 

b.  5 

c.  20 

d.  12 

Question number: 58
» Statistics & Research Methods » Inferential Statistics
Question
A ________ finds the degrees of correlation, or relationship, between two existing traits, behaviors or events.
Choices
Choice (4)  Response  

a.  Factor analysis 

b.  Correlational study 

c.  Analysis of variance 

d.  Question does not provide sufficient data or is vague 

Question number: 59
» Statistics & Research Methods » Inferential Statistics
Appeared in Year: 2015
Question
A fifth test was added to an old established selection test battery of four tests. Two multiple correlations, one between a suitable external criterion and three tests of the old battery, and the other between the same criterion and four tests of the new battery were computed. The significant change is R ^{2} would provide an evidence for the:
Choices
Choice (4)  Response  

a.  Predictive validity of the old battery 

b.  Incremental validity of the fifth test 

c.  Predictive validity of the new battery 

d.  Concurrent validity of the fifth test 

Passage
A psychometrician wanted to develop a new test of Abstract Thinking. He prepared eighty items, presumably assessing abstract thinking. Each item had five alternatives answers, one of them being correct. The psychometrician carried out item analysis by using itemremainder correlations. Item analysis retained sixty items. To examine internal consistency among the items, interitem correlations were inspected. Then the splithalf reliability coefficient, Kuder  Richardson reliability coefficient, and Cronbach’s alpha coefficient were obtained for the sixty item test. The analysis yielded the Cronbach’s alpha coefficient of 0.90. Since the test was fairly long and the alpha coefficient was also quite high, an attempt was made to develop two short versions of equal length by randomly dividing the test items. The 60 item version was, then, correlated with the already established abstract reasoning test, using N = 500. The correlation between the new and an established test was 0.24, significant at. 01 level.
Question number: 60 (1 of 5 Based on Passage) Show Passage
» Statistics & Research Methods » Inferential Statistics
Appeared in Year: 2015
Question
What is the expected Cronbach alpha for the short versions, referred to in the paragraph? (December)
Choices
Choice (4)  Response  

a.  0.82 

b.  0.67 

c.  0.90 

d.  0.45 

Question number: 61 (2 of 5 Based on Passage) Show Passage
» Statistics & Research Methods » Inferential Statistics
Appeared in Year: 2015
Question
Which one of the following conclusion can be drawn from the data provided above?
The new Abstract Thinking Test has: (December)
Choices
Choice (4)  Response  

a.  Unsatisfactory concurrent validity 

b.  Satisfactory convergent validity 

c.  Satisfactory concurrent validity 

d.  Satisfactory divergent validity 
