Statistics & Research Methods (CBSENET (UGC) Psychology (PaperII & PaperIII)): Questions 129  132 of 172
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Question number: 129
» Statistics & Research Methods » Regression Analysis
Question
The primary use of a regression equation in testing and assessment is to
Understanding the Fundamentals of Regression
What is regression analysis and why is it important?
Choices
Choice (4)  Response  

a.  convert one score or variable to another. 

b.  fix certain scores as an anchor for future scores. 

c.  transform scores derived in a different cultural context. 

d.  predict one score or variable from another. 

Question number: 130
» Statistics & Research Methods » Measures of Variation
Appeared in Year: 2013
Assertion (Ꭺ)
Total variance of test score is the sum of true variance and error variance. (December)
Reason (Ꭱ)
True score and error score are independent of each other.
Choices
Choice (4)  Response  

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

b.  Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ 

c.  Ꭺ is false but Ꭱ is true 

d.  Ꭺ is true but Ꭱ is false 

Question number: 131
» Statistics & Research Methods » Basic Descriptive Statistics
Question
Look at the following data for scores of 10 students on a test:
Class interval  Score frequency 
80  100  4 
60  80  4 
40  80  2 
These data are presented in the form of
Choices
Choice (4)  Response  

a.  a frequency distribution. 

b.  a grouped frequency distribution. 

c.  a class interval distribution. 

d.  a nominal scale distribution. 

Question number: 132
» Statistics & Research Methods » Factor Analysis
Appeared in Year: 2014
Question
The 30 X 30 correlation matrix, representing the correlation among the thirty facet of the NEOPI3 were factor analyzed by three methods: (December)
1. Principal components method
2. Maximum likelihood method
3. Principal axes method and the five factors were extracted in each case.
Usually the variance explained by the factor solution would be in the following ascending order.
Choices
Choice (4)  Response  

a.  3, 2, 1 

b.  1, 3, 2 

c.  2, 1, 3 

d.  2, 3, 1 
