Research Methods and Statistics [GATE (Graduate Aptitude Test in Engineering) Psychology]: Questions 98 - 101 of 320

Access detailed explanations (illustrated with images and videos) to 2250 questions. Access all new questions- tracking exam pattern and syllabus. View the complete topic-wise distribution of questions. Unlimited Access, Unlimited Time, on Unlimited Devices!

View Sample Explanation or View Features.

Rs. 600.00 -OR-

How to register? Already Subscribed?

Question 98

Research Methods and Statistics
Measures of Central Tendency and Dispersion

Question

MCQ▾

The most widely used measure of correlation is

Choices

Choice (4)Response

a.

the Spearman-Brown prophecy formula.

b.

the rank-difference correlation coefficient.

c.

the Pearson r.

d.

Spearman՚s rho.

Question 99

Research Methods and Statistics
Observation

Question

MCQ▾

In their search for accurate information and useful theories, psychologists study behavior in many ways. They observe behavior as it unfolds in natural settings, this is known as ________.

Choices

Choice (4)Response

a.

Naturalistic observation

b.

Correlational method

c.

Experimental method

d.

Clinical method

Passage

A psychologist wanted to develop a numerical ability test for the student population. She wrote eighty multiple choice items, each item with five alternatives. The item analysis was carried out by finding discrimination index and item-remainder correlation for each item. Sixty items were retained in item analysis.

The new version, with finally retained sixty items was administered to a new sample (N = 400) twice with a time gap of eight weeks. The test-retest correlation was found to be 0.22, significant at . 01 level. The data obtained at the first administration of the sixty item version was also used for computing split-half reliability. The correlation between scores based on odd items and the scores based on even items was found to be 0.60. The split-half reliability coefficient was obtained after applying Spearman-Brown correction.

The scores obtained by the students were correlated with their marks in Mathematics in their annual examination which took place three months after the data collection. The product-moment correlation of 0.6 was obtained between test scores and mathematics. Norms were developed for the test. The normative sample yielded a mean of 40 and standard deviation of 8. The data were found to be normally distributed. As norms, percentile ranks were obtained.

(June 2014)

Question 100 (1 of 1 Based on Passage)

Research Methods and Statistics
Measures of Central Tendency and Dispersion

Question

MCQ▾

Which of the following correlation is suitable while computing item-remainder correlation in the above analysis?

Choices

Choice (4)Response

a.

Point-biserial correlation

b.

Phi-coefficient

c.

Multiple correlation

d.

Spearman rank difference correlation

Question 101

Research Methods and Statistics
Variables and Operational Definitions

Question

MCQ▾

________ variable in an experiment might be the response of a person to stimulus, a change in behavior after the administration of a drug, changes in managerial behavior after a new training program has been instituted, a score in a test, a verbal report about an event in the environment.

Choices

Choice (4)Response

a.

Dependent

b.

Discrete

c.

Independent

d.

Control

Developed by: