Karteikarten
topic 22 - experiments
Karten in diesem Stapel (21)
- 1what is an IV?something directly manipulated by the experiment
- 2what is the DV?the variable measured at the end
- 3what is the relationship between the IV and the DV?the DV depends on the IV
- 4what is a lab experiment?an experiment done in a lab, a special environment where variables can be investigated under controlled conditions
- 5what is the aim of a study?a statement of what the researcher intends to investigate
- 6what is a hypothesis?a precise and testable statement about the expected relationship between variables
- 7what is an extraneous variable?any variable other than the IV which may affect the DV and so confound the findings, affecting validity
- 8what is operationalisation?defining a variable in a way that can be easily measured or tested
- 9what is a directional hypothesis?states the direction of the difference between two conditions/groups
- 10what is a non-directional hypothesis?states there is a difference without identifying the direction
- 11what is a strength of a lab experiment?researchers can minimise extraneous variables
- 12what does this mean can be done?we can be more certain that is the IV causing the DV not another variable
- 13what are 2 limitations?-setting is contrived (lacks mundane realism)
- experimenter effects may influence results - 14what does it mean that the setting is contrived?participants may behave differently than they do in everyday life
- 15what does this mean for the results?they cant be generalised to everyday life
- 16what is an example of experimenter effects?if they expect boys to do better than girls, they may subtly encourage boy to do better
- 17what does this mean about the final results?boys do better because of the encouragement, not because they are actually superior
- 18what is a second strength of a lab experiment?the level of control makes it easy to replicate
- 19what does this mean?you can demonstrate the validity of results if they occur again when study is redone
- 20what are demand characteristics?a cue that makes participant aware of the aim and affect their behaviour
- 21what do demand characteristics act as?an extraneous variable which may affect the validity
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- A-Level Psychology A2 (RESEARCH METHODS) Karteikarten am topic 22 - experiments , erstellt von Charlotte Hewson am 21/04/2015.
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- Charlotte Hewson
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