| Question | Answer |
| what is reliability? | consistency between data/results/conclusions |
| how do you assess internal reliability? | split half procedure and equivalent forms |
| what is split half procedure? | randomly dividing participants' scores and making sure both sets correlate strongly |
| what is equivalent forms? | two methods of data collection are given to the same participants to see if their results from both tests correlate strongly. |
| how do you assess external reliability? | 1 test-retest procedure
2 simultaneous observation
3 replication |
| what is test-retest procedure? | participants take the same test twice at different times |
| what is simultaneous observation? | to assess inter-observer reliability, two or more observers watch the same sequence of behaviours and should achieve the same scores |
| what is replication? | experimental studies can be repeated exactly using a standardised procedure and results should be the same |
| what are the types of internal validity? | 1 concurrent-whether a test produces similar data as existing standard tests.
2 content-whether a measurement is appropriate for investigating the aims in terms of its academic relevance.
3 face-whether a measurement appears to test what it claims t |
| how do you assess internal validity? | 1- consider experimental procedure
2- compare to existing studies (concurrent)
3- get expert advice (content)
4- use a longitudinal study (predictive) |
| how do you assess external validity? | 1- repeat an experiment using different measurements
2- repeat an experiment using different participant groups
3- apply the findings from one experiment to another setting |
