5.5 Reliability

Question 1

What is reliability?

Answer 1

Refers to consistency or stability of a selection instrument (i.e., a predictor or criterion).

Question 2

What are some benefits of Strong Reliability in the Hiring Process?

Answer 2

Employees are successful in their jobs, the organization experiences less employee turnover, increased loyalty, and a positive work environment.

Question 3

What is the test-retest reliability?

Answer 3

To minimize variance in measurements, HR professionals often test the reliability of a measurement over time.

Question 4

What is the correlation coefficient?

Answer 4

Reflects the stability of the test over time. The higher the coefficient of stability, the more reliable the measure. As a rule of thumb, stability coefficients around +.70 and higher are professionally accepted.

Question 5

In split-half reliability:

Answer 5

Questions (or items) are divided or split in half. Thus, for each person, two scores are computed and these scores are correlated.

Question 6

True or False: Employees are more likely to succeed in their jobs when organizations make decisions based on reliable and valid predictors.

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Answer 6

True

When an organization makes selection and placement decisions based on predictors that are valid and reliable, employees are more likely to succeed in their jobs.

Question 7

What does the correlation coefficient measure when used in test-retest reliability?

The extent to which a selection instrument has homogenous content
The stability of the test over multiple applicants
How accurately a measure assesses an attribute
The stability of the test over time

Answer 7

The stability of the test over time

Question 8

What is a professionally accepted standard for the stability coefficient?

-.60 and lower
-.70 and lower
+.60 and higher
+.70 and higher

Answer 8

+.70 and higher

Question 9

What is the simplest way to assess the reliability of a measuring device?

Test-retest
Inter-method
Inter-rater
Internal consistency

Answer 9

Test-retest

Question 10

What is internal consistency reliability?

Refers to measuring the device at two points in time to compare the scores
Refers to the extent to which the selection instrument has homogenous content
Refers to the stability of the test over time
Refers to the degree to which the test scores are consistent even when variations exist when implementing the test

Answer 10

Refers to the extent to which the selection instrument has homogenous content