Experimental Methods and Control of Variables 0.0 / 5 ? PsychologyResearch methods and techniquesASAQA Created by: MisshannahangelCreated on: 11-11-18 14:13 Define Hypothesis A statement, stating the relationship between the two variables. 1 of 12 Define Aims A general statement, stating the purpose of the study 2 of 12 When should you use a non-directional hypothesis? When previous research is contradictory 3 of 12 What is a non-directional hypothesis? States the difference between two variables 4 of 12 What is a directional hypothesis? A hypothesis that states the relationship between the two variables 5 of 12 When should you use a directional hypothesis? When previous research suggests a particular outcome 6 of 12 Define Extraneous Variables "Nusance variables". any variable other than the IV that has an effect upon the DV, effecting direct cause and effect. 7 of 12 Define Confounding Variables Any variable other than the IV that HAS HAD an effect upon the DV 8 of 12 Define Investigator Effects The investigators effects upon the research 9 of 12 Define Demand Characteristics A clue from the research which reveals the purpose of the study to the participants. This effects their reactivity 10 of 12 What is Randomisation and Standardisation Randomisation = the use of chance to control bias. Standardisation = formalised procedures and instructions for all participants. 11 of 12 What is operationalisation? Clearly defining the variables, in terms of how they are measured. 12 of 12
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