# Statistics & Research Methods (CBSE-NET (Based on NTA-UGC) Psychology (Paper-II)): Questions 139 - 141 of 184

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## Question number: 139

» Statistics & Research Methods » ANOVA or F Test

Appeared in Year: 2015

MCQ▾

### 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

MCQ▾

### 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-Reason▾

### 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 t2 = 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

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