'Confounding variable' diaporamas de présentation

Unit 2: Research Methods: Thinking Critically with Psychological Science

Unit 2: Research Methods: Thinking Critically with Psychological Science. Unit Overview. The Need for Psychological Science How Do Psychologists Ask and Answer Questions? Statistical Reasoning in Everyday Life

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Unit 1

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Midterm Review:

Midterm Review:. 1 st Semester . Which of the following exemplifies the issue of the relative importance of nature and nurture on our behavior?. The issue of the relative influence of biology and experience on behavior The issue of the relative influence of rewards and punishments on behavior

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Research Methods

Research Methods. It is actually way more exciting than it sounds!!!!. Why do we have to learn this stuff?. Psychology is first and foremost a science. Thus it is based in research. Be aware however of two hurdles that tend to skew our logic when we research. Hindsight Bias.

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Quantifying Statistical Control: the Threshold of Theoretical Randomization Kenneth A. Frank

Quantifying Statistical Control: the Threshold of Theoretical Randomization Kenneth A. Frank Minh Duong Spiro Maroulis Michigan State University Ben Kelcey University of Michigan Presented at Groningen May 21 2008.

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Chapter 2

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Chapter 5

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Example:

The goal of every statistical study is to collect data and then use the data to make a decision. Any decision you make using the results of a statistical study is only as good as the process used to obtain the data. If the process is flawed, then the resulting decision is questionable.

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Chapter 5

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Nursing Research 63-377 Dr. Wally J. Bartfay

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Definition of Confounding

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Validity

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Making Inferences about Causality

Watching violent TV. Acting violent. Making Inferences about Causality. In general, children who watch violent television programs tend to behave more aggressively toward their peers and siblings. Question: Can we assume a causal relationship between these two variables?. +.

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Chapter 2

Chapter 2. Designing Experiments. Definitions:. 1) Observational study - observe outcomes without imposing any treatment. 2) Experiment - actively impose some treatment in order to observe the response.

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Class 20

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Chapter 8

Chapter 8. Experimental Design. Confounding variables and internal validity. The means by which independent variables are kept constant Confounding variable A variable that fluctuates along with the independent variable

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The Language of Studies

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The Question of Causation

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The Confounding Variable

The Confounding Variable. 09300170116 ???. Causal Relationship. Building Argumentation. Example. Hypothesis: income ? voting turnout Data from 1,296 cases Cross-tab analysis Correlated; statistically significant Finding: higher income ? more voters vote. Is that all?. Examination.

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Lecture 9 Psyc 300A

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