Fichas
Aims, Hypothesis and Variables
Fichas del conjunto (11)
- 1What is an aim?The overall purpose of the study used to work out whether the hypothesis is true. For example, "To investigate the effect of alcohol on reaction time."
- 2What is a hypothesis?A testable statement that must contain both conditions of the IV, the DV and the word significant.
- 3What is a directional hypothesis?When you state which group/condition will score higher/lower, reflecting a particular expectation. For example, "People who drink alcohol will have a significantly slower reaction time than people who do not."
- 4What is a non-directional hypothesis?When you state that a difference/relationship will be found but you do not state the outcome. For example, "There will be a significant difference between people's reaction time when consuming alcohol."
- 5What is a null hypothesis?Predicts that the study will not find any difference/relationship between groups/conditions or that any difference was found due to chance. For example, "There will be no significant difference between people who drink alcohol and people who don't."
- 6What is the difference between the independent variable and the dependent variable?IV is the aspect of the situation that is manipulated and is the potential cause that is being investigated.
DV is the measured variable and is the effect of changing the IV. - 7What are confounding/extraneous variables?They are out of control of the researcher and are anything other than the IV that affects the DV or participant's behaviour.
Only a problem if they affect one condition of the IV and not the other. - 8Examples of situational variables.Time of day
Weather
Temperature - 9How can you minimise participant variables?A matched pairs design would minimise some participants variables and a repeated measures design would completely eliminate them.
- 10What are co-variables?The two measured variables in studies that involve analysing the data through correlations.
(as there is no IV or DV) - 11What is meant by the term operationalised?It is turning variables into measurable forms, being very specific about how to manipulate and measure the variables. For example, using an IQ test to measure intelligence.
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- Descripción
- A Level Psychology Fichas sobre Aims, Hypothesis and Variables, creado por Abigail Frayling el 25/04/2015.
- Creado por
- Abigail Frayling
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