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10 Cards in this Set

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Non-probability sample

does not give everyone fair shot at participating

external validity

the extent to which the results of a study matter outside the lab

probability sample

utilizes some form of random sampling

demand characteristics

participant thinks they know what the researcher is testing, changes behavior

sample frame

source material or device from which sample is drawn

quasi-experimental design

lacks pre-post test design or a treatment group or a random assignment of study participants

likert scale

levels of agreement 1-5 1-7

experimental design

a controlled experimental factor is treated special to compare with a factor kept constant

semantic differential scale

figure out attittudes towards objects, events, concepts

post-test

test given to participants among completion of experiment