Reliability

Question 1

Why do you need reliability?

Answer 1

In order to trust the results.

Question 2

What are the two types of reliability?

Answer 2

Internal and external.

Question 3

What is internal reliability?

Answer 3

The extent to which a measure is consistent within itself.

Question 4

What is external reliability?

Answer 4

The extent to which a measure varies from one use to another.

Question 5

How can you assess reliability in experimental research e.g. lab studies?

Answer 5

Test-Retest.

Test some pots using same design after a while

Question 6

How can you assess reliability when doing observations?

Answer 6

Inter-rater reliability.

Question 7

How can you assess reliability when doing questionaires?

Answer 7

Split-half method.

Question 8

How many times should you do an experimental research experiment to asses reliability?

Answer 8

2

Question 9

How many times should you do an experimental research experiment to improve reliability?

Answer 9

3/4

Question 10

What is one way you could improve reliability when doing a lab experiment?

Answer 10

Get another experimenter.

Question 11

The more extraneous variables, the better or worse the reliability?

Answer 11

Better.