types of variables
- Created by: Humanur
- Created on: 07-06-21 14:15
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- types of variable
- extraneous variables
- variables which are likely to affect research and the findings leading to conclusion having pooer validity
- iv is what research is interested in but these variables get in the way and researcher need to consider them
- hopefully these are identified early in the research process and can be eliminated
- confounding variables
- this ia an uncontrolled extraneous which can systematcally influence the dv
- example: researcher wants to assess the influence if silence/noise on the quality of homeworked produced
- 1) h/w done with music 2) h/w done in silence
- extraneous variables: age, hw, tasks, etc
- demnad characteristics
- participant acts differently due to gussing what the research is about or due to anixety becasue they're being observed
- this can be on purpose or unconsciously
- participant acts differently due to gussing what the research is about or due to anixety becasue they're being observed
- operationalisation
- before researchers ask questions they need to agree on the definitions
- 'too much' or 'too little' can be different for everyone
- before researchers ask questions they need to agree on the definitions
- investiagtor effects
- researcher involves the interaction between the participant and psychologist
- psycholgist may act differently toward cetain participants (unconscious bias)
- (smile more, use leading questions)
- psycholgist may act differently toward cetain participants (unconscious bias)
- researcher involves the interaction between the participant and psychologist
- randomisation
- this is an attempt to remove researcher bias or investigator effects
- to counteract the researchers bias , the researcher will randomly give numbers to participants and pick them randomly
- this is an attempt to remove researcher bias or investigator effects
- standradisation
- this idea is that the experiment should feel like the same experience for every participant
- if there is not standradisation int hese terms then it is very easy for the experiment to get out of control and for the measurments to be incorrect
- this idea is that the experiment should feel like the same experience for every participant
- extraneous variables
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