reliability

Question 1

reliability means

Answer 1

consistent, if researchers replicate should get similar results

Question 2

external vs internal reliability

Answer 2

external - how consistent is it when repeated at a diff time w diff ppl for example
internal - extent that diff parts of a measure are consistent within itself

Question 3

how to asses internal reliability

Answer 3

split half method
- asses things that test one variable w multiple questions
- split the test into 2 parts
- ppt complete both parts
- test the strength of correlation bet the 2 parts of the measure
- a strong correlation indicates internal reliability

Question 4

assessing external reliability

Answer 4

repeat the study using same procedures at diff times and test the correlations bet 2 versions

Question 5

inter rater reliability

Answer 5

2 or more observers record beh during same obs using same beh categories, then test correlation using spearmans rho, correlation of 8.0 or more

Question 6

how to improve reliability of an observation

Answer 6

• improving traininng of observer to improve their accuracy of allocating beh to correct beh cat
• pilot studies can identify vauge beh categoriest which can then be operationalised

Question 7

how to improve reliability

Answer 7

• use structured interviews over unstructured so intervoew had a script so standardised procedures so each person has sim experience and results can be reliabily compared

Question 8

improving reliability of questionaires

Answer 8

use closed questions ot reduce the range of possible responses and if there is an existing questionaire that measures what you want then use that instead of creating a new test

Question 9

improving reliability of experiment

Answer 9

use standardised procedutre so they have same experience
environmentla cond the same
use established tests instead of creating new ones