Lect+2 - 1 Studying Children Research Methods in...

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Unformatted text preview: 1 Studying Children Research Methods in Developmental Science Lecture 2 Outline s The scientific method s Selecting a sample s Methods of gathering data about children s Research designs s Studying change over time s Ethical considerations The scientific method s Goals s To describe, explain, and predict behavior s To advance basic knowledge s To answer practical questions Basic Research Applied Research 2 The scientific method s Research ideas start from: s Observations s Theories s Ideas should be testable s Avoid confirmation bias s Attempt to disprove ideas The scientific method s Ideas are tested using scientific criteria s Objectivity s Blind observers s Multiple independent observers The scientific method s Ideas are tested using scientific criteria s Objectivity s Reliability s Same findings if done similarly in different occasions s Agreement of independent observers 3 The scientific method s Ideas are tested using scientific criteria s Objectivity s Reliability s Replicability s Validity s Construct s Internal s External Selecting a Sample s Population s Large group including all potential subjects s The group of interest s Sample s Small subgroup of subjects chosen from the population s Need to be representative s External Validity Methods of Gathering Data s Self reports people provide information about themselves by answering questions s Hard to get children to answer reliably (con) s Only way we know the childs unique point of view (pro) 4...
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Lect+2 - 1 Studying Children Research Methods in...

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