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VALIDITY - Coggle Diagram
VALIDITY
ppt reactivity /effects
may lead to ppt changing the behaviour, making behaviour unnatural
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demand characteristics = any cue from the researcher or from the research situation that makes ppt unconsciously aware of the aims of a study or helps ppts work out what the research expects to find
please U effect = may act in a way they think is expected and over perform to please the experimenter
investigator effects
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eg. design of the study, interaction with ppt
physical characteristics as well = age, gender, tone of voice
order effects
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practice effect = the ppt becomes practiced at the task because they are doing it more than once, which leads to improved performance in the second condition
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assessing validity
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concurrent validity
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comparing results of a new measure against the results of another measure (same behaviour) that has already established being valid