Validity Flashcards
What is validity?
Refers to whether a study produces legitimate genuine results that are reflective of the real world.
What is internal validity?
Whether the researcher manages to measure what they intend to measure.
What is external validity?
Whether findings can be generalised beyond the research setting they were found in.
Internal validity refers to the effects observed caused by the manipulation of which variable?
Independent
Name 2 types of internal validity.
Concurrent
Face
What is face validity?
The degree to which a procedure is effective in terms of meeting its aims.
What is concurrent validity?
The extent to which the results of an experiment correspond to results of a previous experiment.
What are 4 types of external validity?
Ecological
Population
Mundane realism
Temporal
What is ecological validity?
The extent to which the setting of the experiment matches the real world setting.
What is population validity?
The extent to which the sample is reflective of the population.
What is mundane realism?
The extent to which the task in the study is applicable to real life.
What is temporal validity?
Whether the findings from a study hold true over time.
How does use of a control group improve validity in experiments?
They ensure that the effect measured on the DV is a result of the IV and not another extraneous variable.
Why might experimenters standardise procedures?
To minimise PPT reactivity and the effect of investigator effects on validity.
How can social desirability bias be reduced in questionnaires?
They may contain a lie scale to assess consistency of PPTs responses.
