research methods

• internal validity : truly measuring what is claimed to be measured, no extraneous variables
• external validity : measurements of behaviour are representative beyond the research
• population validity : results can be generalised to a wider population from the sample group
• ecological validity : results are generalisable to real-world settings
• face validity : superficial, the measurement seems like it is measuring what it claims to
• concurrent validity : scores can be compared to pre-established scores to measure the same behaviour
• construct validity : all facets of behaviour are represented and aren’t reduced down into simpler terms
• criterion validity : measures can be used to predict future behaviour/ outcomes
• internal reliability : how consistent something is within itself
• external reliability : how easily replicated something is, how consistent it is outside the research
• inter-rater reliability : observers who watch the same behaviour and agree on the results
• split-half : a test split into two halves, if it is consistent then the participant should have the same score on both sides
• test retest : the same test being administered at different points in time to see if the same results are achieved
• replication : repeating standardised research with different participants to see if the results are the same