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{ Warm-Up #5 Answer the following in a paragraph: 1. if you were to become a psychologist, which field (Ch. 1 Sec. 3) would you enter/study and why?
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{ Chapter 2 Psychological research methods
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Methods of Research
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Match the description with its correct method of research 1. Obtain info by asking people a set of questions 2. intensive study of people/groups 3. measure relationship between 2 variables 4. observe subject in a natural setting 5. Investigators control the situation and decrease influence of outside variables 6. collect data from participants of different ages and compare 7. collect data about a group over a long period of time A. Case Studies B. Correlations and Explanations C. Cross-Sectional Studies D. Experiments E. Longitudinal Studies F. Naturalistic Observation G. Surveys
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Psychologist observes the subject in a natural setting without interfering Avoid disturbing people being studied by concealing yourself or by acting as unobtrusively as possible Naturalistic Observation http://www.youtube.com/watch?v=BHA3YpjdqZs
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Intensive study of a person or a group Most combine long-term observations with diaries, tests, interviews Does NOT prove or disprove anything Provide descriptive material to generate new hypotheses for researchers to test Case Studies http://www.youtube.com/watch?v=fD1WqPGn5Ag&playnext=1&list= PL36F6B20948B00EA0&feature=results_main
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Information is obtained by asking many individuals a fixed set of questions May consist of interviews, questionnaires or both Surveys http://www.youtube.com/watch?v=sDTpxvV8nHg
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Data is collected about a group of participants over a number of years to assess how certain characteristics change or remain the same during development Very time-consuming and risky Longitudinal Studies http://www.youtube.com/watch?v=wNV-8eGIwFE
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Data is collected from groups of participants of different ages and compared so that conclusions can be drawn about differences due to age Less expensive and time consuming than longitudinal studies Cross-Sectional Studies
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Measure of a relationship between 2 variables or sets of data Do not identify what causes what Correlations & Explanations
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Enables investigators to control the situation and to decrease the possibility that outside variables will influence results Psychologists do not fully accept results until results have be replicated (duplicated) by at least 1 other psychologist Experiments http://www.youtube.com/watch?v=mvUPLN_eaVw
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{ Problems and Solutions in Research Section 2.2
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Avoiding a self-fulfilling prophecy (read Exploring Psych, p. 42) A situation in which a researcher’s expectations influence that person’s own behavior and thereby influence the participant’s behavior Having expectations about a behavior and then acting in some way, usually knowingly, to carry that behavior Problem
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Use of a single-blind experiment The participants are unaware of which participants received the treatment (read p. 43-44 Milgram Experiment) Use of a double-blind experiment Neither the experimenter nor the participants know which participants received which treatment Researcher remains unbiased Solutions
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