NTA-NET (Based on NTA-UGC) Psychology (Paper-II): Questions 2872 - 2875 of 5827

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Question number: 2872

» Communication » Types of Communication

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MCQ▾

Question

The main difference between the Probability Net grapevine and the cluster Net grapevine and the cluster Net grapevine is that in the ________, the communication is accidental and casual, while in the ________ it is based on selection.

Choices

Choice (4) Response

a.

Probability Net grapevine, informal star pattern grapevine

b.

Straight chain pattern grapevine, Cluster Net grapevine

c.

Probability Net grapevine, Cluster Net grapevine

d.

Straight chain pattern grapevine, informal star pattern grapevine

Passage

A researcher wanted to study the effect of a specific drug on the activity of rats. He suspected if the effect of the drug is moderated by temperature. He varied drug dosage (A) at three levels-no drug (placebo), low drug dosage (5 mg/kg body-weight) and high drug dosage (10 mg/kg bodyweight). He varied temperature (B) at two levels – 25 degree Celsius and 39 degree Celsius. Fifteen rats were randomly assigned to each of the six groups. The activity scores for each rate were obtained through activity wheel. The cell means and standard deviations for activity scores were obtained for the six cells. All the cells had comparable standard deviations. A suitable analysis of variance was carried out using the activity scores as the dependent variable. One of the interesting finding in this research was that the F ratio defined as ‘MSA B/MSE’ was statistically significant at. 01 level.

(June 2014)

Question number: 2873 (1 of 4 Based on Passage) Show Passage

» Statistics & Research Methods » ANOVA or F Test

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MCQ▾

Question

Since the F ratio, defined as ‘MSA B/MSE’, is significant, it would be desirable to carry out

Choices

Choice (4) Response

a.

simple effects analysis

b.

compute 3 2 multivariate ANOVA

c.

post-hoc comparison for the two levels of B.

d.

post-hoc comparisons for the three levels of A

Question number: 2874 (2 of 4 Based on Passage) Show Passage

» Statistics & Research Methods » ANOVA or F Test

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MCQ▾

Question

From the significant F ratio, ‘MSA B/MSE’, it can be inferred that

Choices

Choice (4) Response

a.

the main effect of drug dosage is significant

b.

the main effect of temperature is significant

c.

the effect of drug dosage is moderated by temperature

d.

the main effect of drug dosage, the main effect of temperature, and the interaction effect of the two, all are significant.

Question number: 2875 (3 of 4 Based on Passage) Show Passage

» Statistics & Research Methods » ANOVA or F Test

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Appeared in Year: 2014

MCQ▾

Question

What would be the degrees of freedom for error variance?

(June)

Choices

Choice (4) Response

a.

90

b.

84

c.

89

d.

83

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