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Published byMuriel Gray Modified over 9 years ago
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You are going to see a patient diagnosed with schizophrenia. Observe him carefully and note down his behaviour as it happens.
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Research methods and statistics We are learning about...We are learning how to... Observational studies.Gather psychological data. Check the validity of data. Make links between psychological approaches and methods.
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The observation you did was qualitative and unstructured. What sorts of problem were associated with this approach?
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Quantitative (structured) observation Categories of behaviour decided on beforehand Behaviours are tallied during observation either: – As they occur (event sampling) – At predetermined intervals (time sampling)
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Observation schedule Touches hairMoves legSwitches handsChanges topic
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Why is a structured, quantitative observation better than an unstructured, qualitative one? Why might a qualitative approach still be preferred?
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Inter-observer reliability Two or more observers should always be used IOR is a measure of how far their data agrees What might it mean if IOR is low?
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Types of observation Observational studies can be… – Laboratory or naturalistic – Participant or non-participant – Overt or covert What are the strengths and weaknesses of each different approach? – Validity – Ethics
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On the VLE… Moodle questions about observational research. Exercise on sampling methods. RMS booklet Q17, Q9, Q6
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