Experimental Methods
- Created by: MollyGeehan
- Created on: 07-11-18 10:38
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- Experimental Methods
- manipulation of independent variable to measure effect on dependent variable - lab, field, natural, quasi
- Aim
- what the researcher intends to investigate
- Hypothesis
- clear, precise, testable statement that states relationship between variables to be investigated
- Directional Hypothesis
- states direction of difference or relationship
- includes words such as more, less, higher, lower, faster slower
- Non-Directional Hypothesis
- does not state the direction
- difference between conditions or groups of people
- Variables
- 'thing' that can vary/ change within an investigation
- used in experiments to determine if changes in one thing can result to changes in another
- Independent Variable (IV)
- aspect of experimental situation that is manipulated by researcher/ changes naturally so DV effect can be measured
- Dependent Variable (DV)
- variable measured by researcher - any effect on DV should be caused by change in IV
- Operationalisation
- clearly defining variables in terms of how they can be measured
- 'thing' that can vary/ change within an investigation
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