'Designing experiments' presentation slideshows

Basics of Designing Experiments

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Maths and Statistics Seminar Series

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Quantitative Methods

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Chapter 3 Producing Data

Chapter 3 Producing Data . Observational study : observes individuals and measures variables of interest but does not attempt to influence the responses (ex. surveys/polling)

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Components of a causal relationship

Components of a causal relationship. Does a change in X cause a change in Y? There are 3 components: 1) Co?variation of events 2) Time?order relationship 3) Elimination of alternative causes . Independent Variable . The presumed "cause" of a behavioral effect or change

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Producing Data

Producing Data. Chapter 5. Designing Samples. Section 5.1. Convenience Sampling. Sampling that chooses the individuals that is easiest to reach. Probability Sample. A sample chosen by chance and that chance, or probability must be known. Simple Random Sample (SRS).

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Structuring Curriculum Reform

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MSA830: Introduction

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Designing Experiments

Designing Experiments. Section 5.2 Part 1. Explanatory Variable. Any variable that explains the response variable. Often called an independent variable , predictor variable , or factor. Response variables.

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CHAPTER 6- DESIGNING EXPERIMENTS

CHAPTER 6- DESIGNING EXPERIMENTS. SECTION 6.1. Experiment vs. Observational Study (again!). * Experiment = treatment applied to all subjects. * Obs. Study = no treatment imposed, just observe subjects and record data. Explanatory Variable-.

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CHAPTER 3- DESIGNING EXPERIMENTS

CHAPTER 3- DESIGNING EXPERIMENTS. Response Variable-. * A variable that measures an outcome or result of a study. Explanatory Variable-. * A variable that we think explains or causes changes in the response variable. Subjects-. * Individuals in an experiment. Treatment- .

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