CONTROL VARIABLES 0.0 / 5 ? PsychologyResearch methods and techniquesASAQA Created by: _Holly98Created on: 12-12-15 11:10 EXTREANOUS VARIABLES INDEPENDANT VARIABLE MANIPULATED AFFECT DEPENDANT VARIABLE ONLY INFLUENCE DV SHOULD BE IV ADDITIONAL / UNWANTED VARAIBLE = EXTREANOUS LOTS EASY CONTROL E.G. AGE OF PERSON 1 of 6 CONFOUNDING VARIABLES CHANGE SYSTEMATICALLY WITH IV EG. PERSONALITY CANT BE SURE WITH RESULTS EXTROVERTS VARY IV CAUSE AFFECTS DV 2 of 6 DEMAND CHARACTERISTICS PARTICPANTS WORK OUT WHAT TRYING TO DO INTEPRET WHATS GOING ON LEAD ACTING CERTAIN WAY PLEASE YOU SCREW YOU 3 of 6 INVESTIGATOR EFFECTS INFLUECE OUTCOME BECAUSE OF INVESTIGATOR HUGH COOLICAL INCUDE EXPECTANCY EFFECTS & UNCONSCIOUS CUES REEER ACTORS RESEARCHER RELATED TO STUDY DESIGN EG. LEADING QUESTIONS 4 of 6 RANDOMISATION ATTEMPT CONTROL INVESTIGATOR EFFECTS EG EXPERIMENT ON RECALLING WORDS LIST WORDS RANDOMLY GENERATED INVESTIGATOR NO CONTROL 5 of 6 STANDARDISATION PARTICPANTS SUBJECT SAME ENVIORNMENT, INFO & EXPERIENCE ENSURE THIS PROCEDURES STANDARDISED INCLUDE INSTRUCTIONS READ PARTICIPANTS 6 of 6
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