APS 2.2 Review

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Last updated 9:46 PM on 9/28/26
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13 Terms

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Response Variable

measures an outcome of a study (dependant variabel)

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Explanatory Variable

may help explain or predict the changes in a response variable (independant variable)

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confounding

when a third unaccounted variable influences the results

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treatment

condition imposed on the subjects for the study

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experimental unit

the object/subject that is receiving the treatment

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placebo

false treatment treated like the real one

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placebo effect

responding in favor of the placebo even without treatmentf

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factor

explanatory variable that is manipulated and causes the RV to change

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levels

values of a factor

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control group

baseline group with no treatment

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experiment grouping

population—> random sample—> assignment

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resplication

giving the treatment to enough people so its effects are distinguishable

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control

constant variable all throughout