control of variables 0.0 / 5 ? PsychologyResearch methods and techniquesA2/A-levelAQA Created by: EmilygmonkCreated on: 18-04-20 15:40 34521 Across 1. any effect of the investigators behaviour on the research outcome (12, 7) Down 2. using the exact same formalised procedures and instructions for all participants (15) 3. any variables other than the IV that may have affected the DV so we can't be sure of the true sources of changes (11, 8) 4. any variable other than IV that may have an effect on dependent variable if it is not controlled (10, 8) 5. the use of chance in order to control the effects of bias (13)
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