Psychometric Question Paper

Psychometric

Course:Bachelor Of Education

Institution: Kenyatta University question papers

Exam Year:2009

KENYATTA UNIVERSITY
UNIVERSITY EXAMINATIONS 2008/2009
FIRST SEMESTER EXAMINATION FOR THE DEGREE OF BACHELOR OF
ARTS AND BACHELOR OF EDUCATION

EGC/ 519: PSYCHOMETRIC
DATE: Friday 3rd April, 2009

TIME: 2.00-5.00pm
------------------------------------------------------------------------------------------------------------
INSTRUCTIONS:
Answer ALL the Questions
Q1.
a)
Name three test properties that influence test reliability. [3 Marks]
b)
Discuss how these properties can be manipulated to increase test reliability. [3 Marks]
c)
Suppose a statistical test has a reliability coefficient of 0.84 with a standard deviation of 10. [2 Marks]
i)
Compute the test’s standard error of measurement. [2 Marks]
ii)
Is a student scores 90 marks on the test, what would be the
I)
90%
II)
95%
Confidence intervals within which his true score would lie. [4 Marks]

2.
a)
i)
Describe the three commonly used methods of measurement reliability coefficient.[5 Marks]
ii)
Distinguish between reliability and standard error of estimating. [2 Marks]
b)
Discuss Generalizability and Reliability Theories bringing out differences and similarities. [6 Marks]

3.
i)
Describe what are typical performance tests and maximal performance tests. [2 Marks]
ii)
Discuss how you would assess personality. [4 Marks]
iii)
Discuss individual and group tests with appropriate examples in each case. [2 Marks]

4.
Discuss the differences of objectives and Essay tests. [4 Marks]

5.
Discuss five uses of tests. [5 Marks]

6.
Explain the following as they relate to item analysis.
a)
Item difficulty [2 Marks]
b)
Item discrimination [2 Marks]
c)
Distracters (distractors) [2 Marks]

7.
i)
Discuss why raw scores have to be converted to standard scores and normalized scores?
ii)
Distinguish between standardized scores and normalized score.
iii)
When are standardized and normalized scores equal?
iv)
Given that a raw score distribution on a given test is normal with a mean of 55 and a variance of 9; Complete the table below using this information on relevant values of z scores, percentile ranks, T scores and stanines:
Raw score z scores, percentile ranks, T scores stanines

64
60
56
48
44
40
[6 Marks]

8
i)
Define Validity [2 Marks]
ii)
Discuss the three types of bringing out how each is determined.[3 Marks]
iii)
Discuss how a test or instrument can be made sound right from offset. [5 Marks]

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