Lecture1 research methodology

Lecture1 research methodology - Methods of Psychological...

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Methods of Psychological Research Patricia Coffey, Ph.D., S.C. UW Madison-Psychology
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What is scientific knowledge…and how do we gain it in psychology? The Key is Systematic and Controlled Research Strategies Different from naïve/everyday knowledge Knowledge is a moving target…constantly changing Scientific method examines “knowledge”. Ideas and theories are put to the test to see if they hold up, when they hold up, how they hold up
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What Is Scientific Method? Four Main Goals 1) Description ( what happens): 2) Prediction ( when it happens): 3) Causal Control ( what causes it to happen): 4) Explanation ( why it happens):
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What Are the Types of Studies/ Data Collection Methods in Psychological Research?
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Common Research Methods in Psychology: 1. Descriptive Research Methods 4 types: Case studies Naturalistic observation Surveys Correlational method 2. Experimental Methods
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What Are the Differences in Research Strategies? - Descriptive studies observe and classify - Correlational designs examine how variables are related - An experiment involves manipulating conditions & behavior
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Descriptive Research Methods Case Studies Careful Description based on repeated observations: Freud, Sacks, Clinical studies Naturalistic Observation Ethnology Researchers “Ecological Validity” Surveys (class survey experience) Correlational Methods
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Descriptive Research Data Collection Methods: Observing is an unobtrusive strategy Asking takes a more active approach Case studies examine individual lives Response performance measures stimulus processing Body and brain activity can be directly measured
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Asking takes a more active approach… can change opinions
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Managing Measurement Bias: Bias = Systematic (or Non-random ) Error Two important types of measurement bias are: 1) Sampling Bias 2) Expectancy Bias
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Sampling Bias Examples: Oprah magazine surveys Males only for drugs for both genders Adults only for drugs administer to kids College students
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How to Minimize the effects of Sampling Bias? 1) Random Sampling
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This note was uploaded on 02/09/2011 for the course PSYCH 202 taught by Professor Roberts during the Spring '06 term at Wisconsin.

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Lecture1 research methodology - Methods of Psychological...

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