Research planning
- Created by: pomfretg
- Created on: 09-12-14 09:09
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- Research methods
- Variable: Anything open to change
- Independent variable: something the researcher changes
- Dependent variable: Something that is measured to see if it has changed.
- Extraneous variable: A variable that could affect the DV if not controlled (not the IV)
- Standardisation: a way of controlling an extraneous variable
- Hypothesis: A statement predicting the outcome of research
- Null hypothesis: A statement that predicts no difference or correlation in results.
- Alternative hypothesis: A statement that predicts a difference or correlation in results
- Experimental design: A way of allocating participants to conditions in an experiment.
- Independent groups: An experimental design in which the participants are different for each condition
- Advantage: No order effect because different participants are used for each condition.
- Disadvantage: Different participants are used, so any differences in the conditions could be because of individual differences
- Independent groups: An experimental design in which the participants are different for each condition
- Target population: The set of people that the researchers want to generalsie thier results to
- Sample: A smaller group selected from the larger population
- Representative: An accurate reflection of a larger group
- There are two main sampling techniques.
- Random sampling: Everyone in the target population has an equal chance of being picked.
- Advantage:Is not biased so gives more representative samples.
- Disadvantage: Possibility of drawing an unusual sample. Not always practical.
- Opportunity sampling: A sample drawn from the population that is available and convenient
- Untitled
- Advantage: Quick and easy. The researcher selects people that are available, convenient and willing to take park
- Random sampling: Everyone in the target population has an equal chance of being picked.
- There are two main sampling techniques.
- Representative: An accurate reflection of a larger group
- Sample: A smaller group selected from the larger population
- Variable: Anything open to change
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