# Research Methods and Statistics [GATE (Graduate Aptitude Test in Engineering) Psychology]: Questions 210 - 211 of 320

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## Question 210

Research Methods and Statistics
Point Biserial

### Question

Assertion-Reason▾

### Assertion(Ꭺ)

Given below are two statements, one labelled as Assertion (A) and other labelled as Reason (R) . Indicate your answer using the code given below:

A point-biserial correlation is used to measure the strength and direction of the association that exists between one continuous variable and one dichotomous variable.

### Reason(Ꭱ)

variables are measured only on continuous scale

### Choices

Choice (4)Response

a.

Ꭺ is true but Ꭱ is false

b.

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

c.

Ꭺ is false but Ꭱ is true

d.

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

## Question 211

Research Methods and Statistics
Biserial

### Question

Assertion-Reason▾

### Assertion(Ꭺ)

Given below are two statements, one labelled as Assertion (A) and other labelled as Reason (R) . Indicate your answer using the code given below:

Biserial correlations are computed under the assumption that a continuous and normally distributed latent variable underlies the item response.

### Reason(Ꭱ)

Biserial correlation can be calculated by applying the formula

### 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 true but Ꭱ is NOT the correct explanation of Ꭺ

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