2.7.9 Reliability

Question 1

outline 2 ways the reliability of your correlation could be assessed

Answer 1

1. using the test-retest method
2. using split half method

Question 2

outline any measures you put in place to ensure reliability in your correlation

Answer 2

Use the split half method on Barratts impulsiveness scale to ensure
the measuring instrument is internally reliable

• we split, the scores on the odd and even numbered questions and then checked they correlated
  > as they did, it can be assumed that BIS-11 has internal reliability

Question 3

state one issue of reliability in your correlation

Answer 3

A lack of external reliability

Question 4

explain how you dealt with the lack of external reliability

Answer 4

• by using the test-retest method

> completing the study again under exactly the same
conditions, with the same participants at a later date to confirm
external reliability of the findings