ch 2 aria - 09/24/07 Ch 2 The Research Enterprise in...

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09/24/07 Ch 2 – The Research Enterprise in Psychology The Scientific Approach to Behaviour Goals of the Scientific Enterprise What are the goals of the scientific enterprise? measurement and description the investigator has to find a way of measurement that will describe a certain event eg/ if you were interested in the different situations of emotion, then you have to find a way to describe how different situation produce an emotion understanding and prediction scientists understand things when they can explain the reasons for them to evaluate understanding, scientists make hypotheses Hypothesis: a statement about what happens between two or more things called “variables” Variables: anything that is measurable and is controlled or studied application and control Use information gathered from research in everyday life Steps in a Scientific Investigation What are the key steps required by a scientific investigation? 1) Formulate a testable Hypothesis make a theory into a testable hypothesis in order for the hypothesis to be testable, it has to be precise and the variables have to be indicated clearly to make a hypothesis clear, researchers provide “operational definitions” Operational Definition: describes the actions or the process that will be used to measure or control a variable 2) Select the research Method and Design the Study decide on the type of experiment decide on types of participants Participants or Subjects: people or animals whose behaviour is scientifically observed 3) Collect the Data use a method to get information Data Collection Techniques: methods for making experimental observations and measurements 4) Analyze the Data and Draw Conclusions use statistics to analyze data
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decide whether or not hypotheses was supported 5) Report the Findings write up a brief but clear summary of the study and its results Advantages of the Scientific Approach What are the principal advantages of the scientific approach? 2 major advantages: 1) clarity and precision makes people specify exactly what they are talking about when they make hypotheses enhances communication about important ideas 2) intolerance for mistakes data must be proven before it is accepted Looking for Causes: Experimental Research Independent and Dependent Variables What is the difference between an independent variable and a dependent variable? independent variable:
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This note was uploaded on 07/17/2011 for the course PSYCH 101 taught by Professor Brandon during the Spring '11 term at Queens Charlotte.

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ch 2 aria - 09/24/07 Ch 2 The Research Enterprise in...

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