Statistics & Research Methods (CBSENET (UGC) Psychology (PaperII & PaperIII)): Questions 51  55 of 172
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Question number: 51
» Statistics & Research Methods » Inferential Statistics
Appeared in Year: 2013
Question
In a single group pretest post test design, which one of the statistical method can be best employed to evaluate the mean difference of pre and post tests? (December)
Choices
Choice (4)  Response  

a.  Mann Whitney U test 

b.  Chisquare 

c.  Repeated measures ANOVA 

d.  Randomized ANOVA 

Question number: 52
» Statistics & Research Methods » Measures of Variation
Question
Distributions may vary in terms of their
Choices
Choice (4)  Response  

a.  skewness. 

b.  kurtosis. 

c.  variability. 

d.  All a. , b. and c. are correct 

Question number: 53
» Statistics & Research Methods » Factor Analysis
Appeared in Year: 2014
Assertion (Ꭺ)
Promaxrotated factors cannot be subjected to higherorder factor analysis.
Reason (Ꭱ)
Promax rotation results in oblique factors.
Choices
Choice (4)  Response  

a.  Both Ꭺ and Ꭱ are false 

b.  Ꭺ is true but Ꭱ is false 

c.  Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ 

d.  Ꭺ is false but Ꭱ is true 

Passage
Instructions for the questions below. Read the following paragraph and answer the five questions that follow:
An anxiety researcher, working in the interaction model of anxiety, wanted to factor analyzes anxietyproducing situations. He had a hunch that anxietyproducing situations would broadly belong to two categories  interpersonalevaluative and physicallythreatening. His tool, assessing situationspecific anxiety, had 14 situations. For each situation, the subject was required to indicate on 11 fivepoint rating scales as to how he or she would respond in that situation. Thus for each situation scale, the minimum score would be 11 and the maximum score would be 55. The correlation matrix among the 14 situation scales was formed. Two factor analyses were carried out on this correlation matrix. In the first factor analysis, unities were retained in the diagonal spaces of the correlation matrix and the unrotated factors were extracted. Using Cattell’s scree plot, three factors were retained for rotation. The rotated factors had  small or moderate interfactor correlations. In the second factor analysis, appropriate communality estimates were inserted in the diagonal spaces of the correlation matrix and the three factors were rotated using the same rotation method, used in the same factor analysis.
Question number: 54 (1 of 5 Based on Passage) Show Passage
» Statistics & Research Methods » Factor Analysis
Appeared in Year: 2014
Question
In the first factor analysis, while factor analyzing the 14 x 14 correlation matrix, which one of the following four factor extraction method, has probably been used? (December)
Choices
Choice (4)  Response  

a.  Confirmatory factor analysis method 

b.  Principal components method 

c.  Maximum likelihood method 

d.  Principal axes method 

Question number: 55 (2 of 5 Based on Passage) Show Passage
» Statistics & Research Methods » Factor Analysis
Appeared in Year: 2014
Question
Cattell’s scree plot is a (December)
Choices
Choice (4)  Response  

a.  Plot of the order of the factors on X axes and the factor loading on Y axis. 

b.  Plot of the order of Eigen values on X axis and the actual Eigen values of the reduced correlation matrix on Y axis. 

c.  Plot of the order of Eigen values on X axis and the actual Eigen values of the unreduced correlation matrix on Y axis. 

d.  Plot displaying variables using the first two factor as axes. 
