NTA-NET (Based on NTA-UGC) Psychology (Paper-II): Questions 4776 - 4779 of 5972

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Passage

Read the following paragraph and answer the five questions which follow:

A researcher in experimental psychology hypothesized that a particular ‘Reward System’ for fast reactions would improve the reaction time. To verify this hypothesis, he selected forty subjects in the age range of 25 to 35 years from an organization. Following the standard reaction time experiment, he measured the simple reaction time without the reward system. While taking each trial in the experiment, the time-interval between the ready signal and the onset of stimulus was randomly varied between two to five seconds. In the second part of the experiment, the reward system was introduced and the simple reaction time was measured again for the same subjects. The mean reaction time before the introduction of reward system was 210 milliseconds and the mean reaction time after the introduction of reward system was 250 milliseconds. The difference between the two means was statistically significant at. 01 level.

Question number: 4776 (2 of 5 Based on Passage) Show Passage

» Research Aptitude » Hypothesis

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MCQ▾

Question

In the above study, the researcher’s hypothesis is:

Choices

Choice (4)Response

a.

Correlational hypothesis

b.

Non-directional hypothesis

c.

Null hypothesis

d.

Directional hypothesis

Question number: 4777 (3 of 5 Based on Passage) Show Passage

» Research Aptitude » Variables

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MCQ▾

Question

In this experiment, reaction time can be labelled as:

(1) Continuous variable

(2) Dependent variable

(3) Stimulus variable

(4) Behavioral variable

Choices

Choice (4)Response

a.

(1), (2) and (3) only

b.

(1), (2) and (4) only

c.

(1) only

d.

(1) and (2) only

Question number: 4778 (4 of 5 Based on Passage) Show Passage

» Research Aptitude » Hypothesis

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MCQ▾

Question

Which of the following statistical techniques can be used for evaluating the mean differences?

(1) Independent samples t-test

(2) Paired samples t-test

(3) Mann-Whitney U-test

(4) Repeated measures ANOVA

Choices

Choice (4)Response

a.

(2) only

b.

(1) and (2) only

c.

(2) and (4) only

d.

(1), (2) and (4) only

Question number: 4779 (5 of 5 Based on Passage) Show Passage

» Research Aptitude » Hypothesis

Edit
Assertion-Reason▾

Question

Assertion (Ꭺ)

In the above study, the fore-periods were randomly varied.

Reason (Ꭱ)

Random variation of the fore-periods reduces the false reactions.

Choices

Choice (4)Response

a.

Ꭺ is false but Ꭱ is true

b.

Ꭺ is true but Ꭱ is false

c.

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

d.

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

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