Reliability

Question 1

Define internal reliability

Answer 1

The extent to which the measure used in a piece of research is consistent within itself and produces a consistent experience for all participants

Question 2

Define eternal reliability

Answer 2

The extent to which the procedure and results can be replicated so that the same study can be conducted in future and gain similar results

Question 3

How can reliability be tested?

Answer 3

Internal -split half

External-test test
-inter rater

Question 4

Describe split half test

Answer 4

Measures the extent to which all part of the test contribute equally to what is being tested

Question 5

How is the split half test conducted?

Answer 5

A test is split into two parts and then both parts are given to one group of students at the same time. The scores from both parts of the test are correlated

Question 6

Describe test retest

Answer 6

Measures the consistency of a test over time

Question 7

Describe inter rater test

Answer 7

The extent to which 2 or more independent observers agree with each other on what they saw in the same participant/event

Question 8

Give factors that increase reliability

Answer 8

• use of experiment method ie high control
• controls such as standardised procedures and instructions including some training
• quantitative data
• large sample size
• in observations use at least two observers

Question 9

Give factors that decrease reliability

Answer 9

• research methods with no control ie case studies
• lack of standardised procedures
• qualitative data as it can be interpreted in different ways by different people
• small sample size