Statistics & Research Methods (CBSENET (Based on NTAUGC) Psychology (PaperII & PaperIII)): Questions 139  141 of 184
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Question number: 139
» Statistics & Research Methods » ANOVA or F Test
Appeared in Year: 2015
Question
In a study, twenty – five subjects performed the same task under three conditions – relaxed, moderately stressed, and highly stressed. The suitable analysis of variance was carried out. The degree of freedom for the conditions X subjects interaction (used as an estimate of error variance) would be: (June)
Choices
Choice (4)  Response  

a.  48 

b.  24 

c.  72 

d.  74 

Question number: 140
» Statistics & Research Methods » Factor Analysis
Appeared in Year: 2015
Question
Which of the following statements are true about the principle components analysis? (June)
(a) Unities (values of 1) are retained in the diagonal spaces of the correlation matrix.
(b) The first principal component explains maximum variance.
(c) Principle components analysis follows common factor model.
(d) Principal components analysis yields oblique unrotated factors.
Choices
Choice (4)  Response  

a.  a and b 

b.  a and d 

c.  b and c 

d.  a, b and d 

Question number: 141
» Statistics & Research Methods » T Tests
Appeared in Year: 2015
Assertion (Ꭺ)
In the randomized two – group design, if the mean difference between the two groups in analysed both by t and F tests, F is always larges then t. (June)
Reason (Ꭱ)
In the randomized two group design, the t^{2} = F.
Choices
Choice (4)  Response  

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

b.  Ꭺ is true but Ꭱ is false 

c.  Ꭺ is false but Ꭱ is true 

d.  Both Ꭺ and Ꭱ are false 
