the aspect (variable) of the experiment which is manipulated by the researcher or changes naturally so the effect o the DV can be measured.
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dependent variable
the variable which is masured by the researcher - any effect on the DV should be becauise of the IV
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extraneous variables
any variablehan the IV which has an effect of the DV if it is not controlled.
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independent measures
`participants are allocated to different groups each group representing one experimental condition.
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repeated measures
all participants take part in all conditions of the experiment
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matched pairs
pairs of participants are paired with things whihc may effect the DV. then particiant A is assigned to one group and participant B assigned to the other
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correlation
where the researcher investigates the association between 2 variables, called co variables.
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lab experiment
when an experiment takes place in a controlled environment. maintainng control of extraneous variables.
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field experiment
an experiment which takes place in a natural setting
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natural experiment
where the change in IV is not manipulated by the researcher and would happen even if the researcher wasnt there.
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quasi experiment
where the iv has not been determined by anyone, the variables just exist e.g. age and gander.
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quantitive data
numerical data.
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qualitive data
focuses more on words
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validity
y is the extent to which a concept, conclusion or measurement is well-founded and likely corresponds accurately to the real world
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ecological validity
the extent to which the investigation represents real life
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reliability
the consistancy of the research findings
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operationalising
clearly defining variables in terms of how they can be measured.
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measures of central tendency
any meausre of the average in a set of data
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measures of dispersion
any measure of the spread or variation in a set of scores
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investigator effects
any effect that the investigators behaviour (conscious or unconscious) has on the outcome of the researcher.
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self report
own report of symptoms/feelings
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experimental group
the group containing the independant variable.
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control group
the group whcih is compared to as nothing changes
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Other cards in this set
Card 2
Front
the variable which is masured by the researcher - any effect on the DV should be becauise of the IV
Back
dependent variable
Card 3
Front
any variablehan the IV which has an effect of the DV if it is not controlled.
Back
Card 4
Front
`participants are allocated to different groups each group representing one experimental condition.
Back
Card 5
Front
all participants take part in all conditions of the experiment
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