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Tests And Measurements Question Paper

Tests And Measurements

Course:Doctor Of Philosophy

Institution: Kenyatta University question papers

Exam Year:2009

KENYATTA UNIVERSITY
UNIVERSITY EXAMINATIONS 2008/2009
SECOND SEMESTER EXAMINATION FOR THE DEGREE OF DOCTOR OF
PHILOSOPHY
PSY/PHD/806: TESTS AND MEASUREMENT

DATE: Friday 24th April, 2009

TIME: 9.00 a.m. – 12.00 noon

INSTRUCTIONS
Answer ALL the questions.

1.
i.
Define Validity. [2 marks]
ii.
Discuss the three types of validity bringing out how each is determined. [3 marks]
iii.
Discuss how a test or instrument can be made sound right from offset. [5 marks]
2.
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.
i.
Compute the test’s standard error of measurement. [2 marks]
ii.
If 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]
3.
a)
i.
Describe the three commonly used methods of estimating reliability coefficient. [5 marks]
ii.
Distinguish between reliability and standard error of measurement. [2 marks]
b)
Discuss Generalizability and Reliability Theories bringing out differences and similarities. [6 marks]
4.
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]
5.
Discuss the differences of Objective and Essay tests. [4 marks]
6.
Discuss five uses of tests. [5 marks]
7.
Explain the following as they relate to item analysis
a)
Item difficulty [2 marks]
b)
Item discrimination [2 marks]
c)
Distracters (distractors) [2 marks]
8.
i.
Discuss why raw scores have to be converted to standard scores and normalized scores? [2 marks]
ii.
Distinguish between standardized scores and normalized scores. [2 marks]
iii.
When are standardized and normalized equal? [2 marks]
iv.
Given that a raw score distribution on a given test is normal with mean 55 and variance 9. Complete the table below using this information on relevant values of z scores, percentile ranks, T scores and stanines:
Raw score
Z score
Percentile rank T score
Stanine
64
60
56
48
44
40
[6 marks]

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