Psychological investigations: Self report

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  • Created by: Ellie
  • Created on: 02-05-16 14:27
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  • SELF-REPORT
    • Ways in which we can gain data by asking the p's to provide information. About their own beliefs or thoughts.
    • RELIABILITY- test or measure is consistent, produce the same results in the same conditions.
      • Test reliability through test retest p's respond same test twice in similar way. Split half  scores from the first half correlate with that of the second half.
      • Maintain high reliability through inter-rater reliability, 2 or more researchers assess same info and correlate ratings
    • VALIDITY- the extent to which a technique is capable of achieving the intended purpose.
      • Internal validity, refers to test being used whether changes in the DV are due to the IV
        • Face validity, whether a measure appears to test what it claims to at face value
        • Concurrent validity, does it relate to any existing similar measure.
      • External validity, relates to issues beyond the investigation
        • Ecological validity, how reflective of real life the study is.
        • Population validity, can you generalise the study/sample?
    • Interview self-report method that in which p's reply verbally to questions asked by interviewer
      • STRUCTURED - mostly closed q's in fixed order, scripted and standardised,
        • WEAKNESS,-quan data does not give in-depth analysis reduced validity
        • STRENGTH- standardised as all p's treated in the same way, quan data easy to analyse.
      • UNSTRUCTURED, generally start with fixed q but then depends  on respondent after that.
        • STRENGTH- new themes that rise can be thoroughly explored and give a fuller picture.
        • WEAKNESS- Researcher effects can make the interview less reliable.
      • Interviews can suffer from demand characteristics in the form of socially desirable ans
        • Participating takes a lot of time.Iit may invade privacy, those who volunteer may not be representative. High sample attrition.

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