Lesson5datacollection
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The document outlines objectives and concepts for a lesson on data collection, including defining qualitative and quantitative research, scales of measurement, and techniques for collecting data such as case studies, interviews, and technology. It also discusses ensuring quality through establishing reliability, which is whether a test produces consistent results, and validity, which is whether a test measures what it is intended to measure.
Lesson5datacollection
- 1. Lesson 5: Data Collection Friday, 6 April 2012
- 2. Lesson 4: Reconstructing Memories EXAM QUESTION Taken from 2011 Mid Year Exam Friday, 6 April 2012
- 3. Model response: Friday, 6 April 2012
- 4. Lesson 5: Data Collection Objectives ~ Define descriptive statistics ~ Define qualitative research ~ Define quantitative research ~ Distinguish between subject and objective data ~ Outline scales of measurement ~ Describe the techniques of qualitative and quantitative data collection: case studies; observational studies; self- reports; questionnaires; interviews; brain imaging and recording technologies ~ Describe the different types of test reliability and validity Friday, 6 April 2012
- 5. Types of Data Scales of Measurement Qualitative Quantitative Nominal Subjective Ordinal Objective Interval Ratio Data Collection Techniques Case Studies Quality Interview Validity Questionnaires Psychological Tests Technology Reliability Internal External Cross-Sectional Internal Longitudinal Content Inter-rater Parallel forms Criterion-related Test-retest Construct Generalisation Friday, 6 April 2012
- 6. Types of Data Friday, 6 April 2012
- 7. Qualitative: descriptions of characteristics Quantitative: refers to measurements Subjective: based on opinions Objective: based on identifiable external criterion Friday, 6 April 2012
- 8. Friday, 6 April 2012
- 9. What type of data was collected?? Qualitative or Quantitative? Objective or Subjective? Friday, 6 April 2012
- 10. Scales of Measurement Friday, 6 April 2012
- 11. Nominal: property with no quantitative value, e.g. hair colour Ordinal: definite sequence though inconsistent gaps, e.g. age of class Interval: scaled measure with constant values between each level *note no value of zero* Ratio: most precise, basically an interval scale but with zero meaning zero! Friday, 6 April 2012
- 12. What scale are each of the following measured? Psych Study Score? temperature? eye colour? height of people in room? Friday, 6 April 2012
- 13. Techniques Friday, 6 April 2012
- 14. Case Studies: detailed observations of an individual over a period of time Observation: Naturalistic - observing voluntary behaviours in natural environment Controlled - observing voluntary behaviours in structured environment Questionnaires: collecting written responses from participants Psychological Tests: personality or multiple choice Technology: Brain-imaging Cross-Sectional: participant data across different ages and groups compared Longitudinal: same participant over a long period of time Friday, 6 April 2012
- 15. Provide an example of each Ask around room Friday, 6 April 2012
- 16. Quality Friday, 6 April 2012
- 17. Reliability Validity Internal - extent to which Internal - measures what it each aspect equally claims to measure contribute to final score - content (face): appears to be valid Inter-rater - same result - construct: applied to obtained regardless of theory administrator Test-retest - same External - can results be participant, same results generalised? second time -criterion related: support from other research Parallel form - pre - characteristics of experiment and post test enable generalisation Friday, 6 April 2012