# Arunachal Pradesh PSC: Psychology MCQs (Practice_Test 52 of 68)

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A new achievement test in English language was developed using descriptive type questions for business management students. Each answer book was evaluated by two English teachers. The correlation coefficient between the scores given by the two teachers was 0 − 28. This indicates that the new achievement test has

problems related to parallel-form reliability

problems related to inter-scorer reliability

problems related to concurrent validity

no problems related to reliability and validity

Which of the following are suitable for improving the validity of a test?

Increasing homogeneity of items

Increasing the area of coverage

Controlling for social desirability

Consultation with experts

Select the correct answer using the codes given below:

1 and 2 only

3 and 4 only

1, 2 and 3

2, 3 and 4

In which one of the following the Spearman-Brown formula used?

K-R − 20

Split-half reliability

Parallel form reliability

Test-retest reliability

Consider the following statements regarding the reliability and validity of a test:

Reliability of a test presupposes some amount of validity

Validity of a test presupposes some amount of reliability

Reliability & validity of tests are independent of each other

Item analysis ensures both reliability & validity of a test

Which of the statements given above is/are correct?

2 only

4 only

1 and 2

3 only

Match List-1 with List-II and select the correct answer using the code given below the lists:

List-I (Type of Scale) List-II (Measure of Relationship) Nominal Scale

Ordinal Scale

Interval Scale

Spearman's rho

Tetrachoric correlation

Pearson's r

Biserial correlation

- A
- B
- C
- D

- 1
- 2
- 4
- 3

- 2
- 1
- 3
- 4

- 3
- 4
- 2
- 1

- 4
- 3
- 1
- 2

Consider the following statements regarding interval scale:

There is no meaningful zero point

A scope of 6 is twice as high as a score of 3

The values follow an ordinal sequence.

The difference between 5 and 10 need not be the same as the difference between 10 and 15

Which of the statements given above are correct?

1 and 3

1 and 4

2 and 3

2 and 4

Match List-I with List-II and select the correct answer using the code given below the lists:

List-I (Type of Scale) List-II (Example) Interval Scale

Nominal Scale

Ordinal Scale

Ratio Scale

Time required to learn the given task

Seat numbers of the students in examination

Water temperature on usual Celsius scale

Merit-list of the students in exam.

- A
- B
- C
- D

- 3
- 2
- 4
- 1

- 2
- 3
- 4
- 1

- 3
- 2
- 1
- 4

- 2
- 3
- 1
- 4

The correlation between two nominal variables is assessed using:

Spearman's rank correlation rho

Contingency coefficient c

Pearson's r

Kendall's coefficient of concordance w

Which of the following statements regarding coefficients of correlation are correct?

A correlation of-1 is as strong as a correlation of + 1.

It can be used to get an estimate of systematic variance.

It can be used to get an estimate of error variance

The lowest value in correlation is 0.

Select the correct answer using the code given below:

l and 4 only

1, 2 and 3 only

3 and 4 only

1, 2, 3 and 4

If Y = X/X, what is Y?

0

1

Mean of X value

Cannot be determined from the given information

A shopkeeper dealing in shoes, wants to decide which shoe size he should stock in the greatest quantity. He would be most interested in which of the following statistics of his customer's shoe sizes?

Mean

Median

Mode

Range

In which of the following is control of secondary variables through statistical procedures achieved best?

Quasi-experimental designs

Experimental designs

Correlational designs

ABBA designs

What is the statistical procedure for combining the results of many studies in order to determine whether their findings provide support for a specific hypothesis, called?

Meta-analysis

Inferential statistics

Descriptive statistics

Correlational analysis

Which is the best control for practice effects in an experiment?

Random selection

Counter balancing

Equivalent group

Split-half presentation

Which of the following statements are usually correct about laboratory experiments in psychology?

Subjects are often assigned randomly to different groups or conditions.

Independent variable is manipulated by the experimenter.

Independent variable is already manipulated in natural course.

Secondary variance is controlled efficiently

Select the correct answer using the code given below:

2 and 3 only

1, 2 and 4

1, 3 and 4

2, 3 and 4