1-5

Question 1

What are the three types of reliability?

Answer 1

test-retest

internal consistency

classical test theory (CTT)

Question 2

test-retest reliability

Answer 2

estimate the reliability/precision of test scores when the same people take the same test form on two separate occasions.

Question 3

estimate the reliability/precision of test scores when the same people take the same test form on two separate occasions.

Answer 3

test-retest reliability

Question 4

internal consistency

Answer 4

estimate the reliability/precision of test scores by looking at the relationships between different parts of the same test given on a single occasion

Question 5

estimate the reliability/precision of test scores by looking at the relationships between different parts of the same test given on a single occasion

Answer 5

internal consistency

Question 6

How do we establish internal consistency for a test?

Answer 6

> >

Question 7

KR-20

Answer 7

formula for calculating internal consistency, for right or wrong answers (multiple choice, t/f)

Question 8

formula for calculating internal consistency, for right or wrong answers (multiple choice, t/f)

Answer 8

KR-20

Question 9

Coefficient alpha (Cronbach’s alpha)

Answer 9

calculates internal consistency for questions that have more than two possible responses such as rating scales

Question 10

calculates internal consistency for questions that have more than two possible responses such as rating scales

Answer 10

Coefficient alpha (Cronbach’s alpha)

Question 11

When is it appropriate to use coefficient alpha to determine an estimate of internal consistency reliability?

Answer 11

calculate and report an estimate of internal consistency for each homogeneous subtest or factor

NOT heterogenous

Question 12

Classical test theory (CTT)

Answer 12

a person’s test score (called the observed score) is made up of two independent parts: true score (T) and random error

Question 13

a person’s test score (called the observed score) is made up of two independent parts: true score (T) and random error

Answer 13

classical test theory (CTT)

Question 14

true score (T)

Answer 14

The score that would be obtained if an individual took a test an infinite number of times and then the average score across all the testings were computed

Question 15

The score that would be obtained if an individual took a test an infinite number of times and then the average score across all the testings were computed

Answer 15

true score (T)

Question 16

observed score

Answer 16

a person’s test score

Question 17

a person’s test score

Answer 17

observed score

Question 18

random error

Answer 18

causes a person’s test score to change from one administration of a test to the next

Question 19

causes a person’s test score to change from one administration of a test to the next

Answer 19

random error

Question 20

unexplained

Answer 20

h