Define reliability.

Define external reliability.

Define internal reliability. Give an example to support your explanation.

Define observer reliability.

Describe the 'test - retest' method of assessing reliability.

What type of reliability does the 'test - retest' method assess?

Describe the 'split - half reliability' method of assessing reliability.

What type of reliability does the 'split - half reliability' method assess?

Describe the 'Inter - Observer reliability' method of assessing reliability.

What type of reliability does 'inter - observer reliability' assess?

How similar do results have to be before we can say they are reliable?

How can we improve the reliability of questionnaires?

How can we improve the reliability of interviews?

How can we improve the reliability of experiments?

How can we improve the reliability of observations?