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biased sampling

 a sample of participants is not representative of the populationfrom which it was taken, and thus is likely to over-represent one group (e.g. by gender, working class etc)

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Psychology term of the day

June 19th 2021

negativereinforcement

in operantconditioning, a method to increase the probability and strength of aresponse by removing or withholding an aversive stimuli  (negative reinforcer)