experimental method
- Created by: s burke
- Created on: 14-10-19 21:42
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- EXPERIMENT-AL METHOD
- aims
- based on theory + research
- general statement of purpose of investigation
- variables
- independent variable
- variable that you change
- dependant variable
- variable that you measure
- control variable
- to show that the DV is due to the IV and not an external factor
- e.g. biological drugs testing: control condition = placebo, experimental condition = drug
- to show that the DV is due to the IV and not an external factor
- independent variable
- hypotheses
- H0 = nul hypothesis
- there will be no difference
- makes the hypothesis falsifiable (can be proven wrong)
- there will be no difference
- H1 = experimental hypothesis
- there will be a difference
- directional
- "there will be a … (increase, decreases etc.)
- comparison adjectives
- shows direction
- when findings of previous research studies suggest a particular outcome
- clear on the sort of difference anticipated
- "there will be a … (increase, decreases etc.)
- non-directional
- "there will be a difference between..."
- when there is no previous research OR findings from earlier studies are contradictory
- must be operation-alised (measurable)
- e.g. scale, score 1-10
- clearly states the relationship between variables
- H0 = nul hypothesis
- levels of IV
- 1 - before / after, same participants
- 2 - 2 groups, 1 condition each
- timeline
- 1. theory
- 2. aim
- 3. hypotheses
- 4. data collection
- 5. analyse
- 6. conclusion
- 7. evaluate
- [do not include when writing method in alevel exams]
- 6. conclusion
- 5. analyse
- 4. data collection
- 3. hypotheses
- 2. aim
- 1. theory
- quantitative (numerical) data
- aims
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