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Non-Experimental Research = research in which the experimenter does not have complete control over the conditions of the study Researcher gives up some control in order to get the data “correlational research”
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Experimental Research Non-Experimental Research Manipulation Assignment Observation
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Types of Non-Experimental Research Surveys Observational Research Archival Research Case Studies
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Observational Research Naturalistic Observation Participant Observer
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Naturalistic Observation “unobtrusive” research “nonreactive” research Types of evidence examined: –Physical Trace –Direct Observation
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Participant Observer Research Useful for secretive or otherwise isolated groups Approach to research is often hermeneutic Undisguised vs. Disguised participation Problems –Objectivity –Reactivity –Privacy and consent
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Key Features of Observational Research Careful record keeping –distinguishes naturalistic observation from casual (non-systematic) observation –Coding Scheme is crucial (example: FACS) Using a variety of measures Safeguarding the privacy of participants
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Data Recording Methods in Observational Research Field Notes – for direct observation –Be systematic – use checklists, record in as much detail as possible –Be selective – sampling and restricting to only behaviors of interest –Use recording devices if possible Content Analysis – for textual and photographic materials
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Content Analysis Manifest vs. Latent Content –Coding manifest content is more objective, and therefore more reliable –Manifest content may be less valid in some cases Checking for reliability: –Have at least 2 raters work independently –Check for agreement, or “interrater reliability” Percent agreement Kappa –Resolve disagreements between raters if possible
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Archival Research Using existing records or data Potential Problems: –You are at the mercy of whoever collected the data. (They may or may not ask what you need to know.) –The records could be biased.
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Case Studies Studying a unique individual person, situation, or event Uses multiple sources of information Often focused on a practical problem or pressing issue
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