CBSE-NET (UGC) Psychology (Paper-II & Paper-III): Questions 3437 - 3441 of 4552

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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 number: 3437 (2 of 5 Based on Passage) Show Passage

MCQ▾

Question

What inference can you draw about the reliability of the text?

Choices

Choice (4) Response

a.

The test has satisfactory test retest reliability.

b.

The test has satisfactory internal consistency and test retest reliability.

c.

The rest has satisfactory test retest reliability but unsatisfactory internal consistency.

d.

The test has unsatisfactory ‘test retest reliability’.

Question number: 3438 (3 of 5 Based on Passage) Show Passage

MCQ▾

Question

What would be the split-half reliability coefficient after Spearman-Brown correction?

Choices

Choice (4) Response

a.

0.90

b.

0.40

c.

0.60

d.

0.75

Question number: 3439 (4 of 5 Based on Passage) Show Passage

MCQ▾

Question

What evidence has been obtained for the validity of the above test?

Choices

Choice (4) Response

a.

Unsatisfactory predictive validity

b.

Satisfactory concurrent validity

c.

Satisfactory predictive validity

d.

Unsatisfactory concurrent validity

Question number: 3440 (5 of 5 Based on Passage) Show Passage

MCQ▾

Question

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

Choices

Choice (4) Response

a.

Spearman rank difference correlation

b.

Phi-coefficient

c.

Multiple correlation

d.

Point-biserial correlation

Question number: 3441

MCQ▾

Question

An action potential actually occurs because

Choices

Choice (4) Response

a.

sodium ions leave the nerve cell.

b.

potassium ions enter the nerve cell.

c.

the interior of the nerve cell becomes negative.

d.

the interior of the nerve cell becomes positive.

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