Research Methods in CD - RESEARCH IN CHILD DEVELOPMENT *All...

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RESEARCH IN CHILD DEVELOPMENT *All Research entails : -- Theory : an overarching set of assumptions & explanations which helps to guide research e.g., Psychoanalytic theory; Theory of Natural Selection -- Hypothesis : a testable prediction Two-tailed : “Breast-fed infants will differ from formula-fed infants on frequency of ear infections." One-tailed : “Breast-fed infants will have fewer ear infections than formula-fed infants.” -- Operational Definitions : measurable behaviors used, for the purposes of that experiment, to define some concept/variable e.g.,“Intelligence is what an I.Q. test measures.”
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-- Sampling of a Population --Random sampling vs. unbiased sampling --Representative Sampling
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I. Research *CANNOT infer cause-effect *No manipulation of variables A. Naturalistic Observation 1. Natural setting 2. Non-intervention 3. Systematic observation: -- event sampling : number of behaviors which occur during observation period -- time sampling : per observation unit (e.g., 30 seconds), did ANY target behavior occur?
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Case Study 1. Intensive study of 1 or several subjects: Freud's psychoanalysis; Darwin's "baby biographies" 2. Results may not be generalizable to others in the population C. Survey/Self-Report 1. Set of questions asked verbally or written 2. People may try to project a positive image at expense of the truth, or may unreliably predict their own behavior D. Correlational Research 1. Assesses the relationship between two (or more) variables 2. Data can be from an active study, or archival material (e.g., the U.S. Census)
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Research Methods in CD - RESEARCH IN CHILD DEVELOPMENT *All...

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