Random

Question 1

What are the four types of reliability?

Answer 1

1. test-retest
2. alternate forms
3. internal consistency: split-half, Kuder-Richardson and Coefficient Alpha
4. score reliability

Question 2

What is the formula for error variance?

Answer 2

1-rxx

Question 3

What does the Spearman-Brown formula help us do?

Answer 3

allows us to look at the effect on reliability of lengthening/shortening the test

Question 4

What is internal consistency?

Answer 4

value is equal to the mean value of all possibly split-half coefficients

Question 5

What is the coefficient alpha used for?

Answer 5

multiple choice

Question 6

What are split-half reliability coefficients based on?

Answer 6

number of errors made, not the speed

Question 7

How high should the rxx be?

Answer 7

upwards of .8