objectivity, reliablility and validity Flashcards
what is objectivity
need to be impartial and judgement free
important that DV measured objectively
adds reliability and validity
what is reliability
consistency of findings
important for being scientific
test-retesr reliability is repeating an investigation to see if the same findings will happen again and again
what is validity
whether the study is measuring the behaviours or constructs it intends to
what is internal validity
how well the procedure of a study establishes a causal relationship between manipulated IV and measured DV
standardised procedures, no order effects, no individual differences, no demand charcteristics
construct validity
predictive validity
what is external validity
how well findings can be generalised beyond study
ecological
population
