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Data Collection

Data Collection. WHAT to consider when selecting the methods of data collection?. Structure Quantifiability Obtrusiveness : subject awareness of being studied Objectivity: two researchers same results. Data Collection Methods. Self-Report Unstructured Unstructured interview

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Data Collection

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  1. Data Collection

  2. WHAT to consider when selecting the methods of data collection? • Structure • Quantifiability • Obtrusiveness: subject awareness of being studied • Objectivity: two researcherssame results

  3. Data Collection Methods Self-Report • Unstructured • Unstructured interview • Focused interview • Focus group interview • Life histories • Critical incidents • Diaries

  4. Structured: Known as Self-Administered Questionnaire (SAQ) • SAQ vs. interview: • Cost • Anonymity • Interviewer bias ++ response biases: it include • Response set • Acquiescence response (yea Sayers) • Nay-Sayers

  5. Observational Methods • Unstructured observation: observational data are gathered through a participants observation techniques, inlcude the following phases: • Primarily observation • Primarily obs with some participation • Primarily participation and some obs • Reflective observation Data recoded by using: • Logs • Field notes: observational, theoretical, methodological, and personal notes

  6. Structured Observation • The behavior or event is defined • Systematic planned observation • Requires creativity in categorizing recording, decoding observations • It include: • Category • Checklist • Rating scale

  7. Biophysiological Methods • In Vivo Measures: highly complicated systems. For example, ECG, EEG, Neurological responses • In Vitro Measures: extracting physiological materials and submitting it to the lab. For example • chimerical (hormonal level) • microbiological (bacteria) • cytological (tissue biopsy)

  8. Observational Biases • Enhancement of contrast effect: - or + • Central tendency (converse effect) • Assimilatory effect: one category • Halo effect: based on previous info • Error of leniency: all positive • Error of severity: all negative

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