PSYC 331 Lecture 6 -- Basics of Experimentation

PSYC 331 Lecture 6 -- Basics of Experimentation - PSYC 331...

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1 PSYC 331 Lecture 6 Basic Research Methods: Basics of Experimentation
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2 Overview In this lecture, we will discuss t he Basics of Experimentation, which include: Independent Variables Dependent Variables Control Variables Experimental Group or Condition Control Group or Condition Possible Sources of Error
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3 Conducting your Research: Steps to follow: 1. Determine the method of study 2. Determine your research setting 3. Choose your methodology 4. Select your materials and procedures 5. Select your participants
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4 Determine the method of study Observations (focus of Chapter 4) Relational Research (focus of Chapter 5) Experimentation (focus of Chapter 6)
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5 Causation Revisited Mills –you can have causation if the following conditions are met: If Result (X) follows an Event (A) If A and X vary together Event A produces result X If all 3 are met then you can have the Joint Method of Agreement and Difference
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6 What is an experiment? Tests designed to arrive at a causal explanation. Comparison of experimental (manipulated) group(s) to a control group (held constant). Question – if they all start out with everything else being equal, do we see a difference due to the manipulated variable(s)?
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7 Variables Independent Variable (IV) -- What was varied (manipulated) May have more than one IV in an experiment (Factor) Each IV may have two or more levels
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PSYC 331 Lecture 6 -- Basics of Experimentation - PSYC 331...

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