'Experimental hypothesis' diaporamas de présentation

The t-test (happy happy joy!)

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Experimental Design: Threats to Validity

Experimental Design: Threats to Validity. EXPERIMENTS: The independent variable is manipulated to determine its effect on the dependent variable(s) whilst holding all other potential influences on the dependent variable(s) constant .

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IB Psychology (SL)Internal assessment

IB Psychology (SL)Internal assessment. Experimental research. Considerations in experimental research. What is the aim of the experiment? What studies and theories are considered in your research? How do you plan to manipulate and measure variables? How will you select participants?

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Sepsis alters the megakaryocyte-platelet transcriptional axis resulting in platelet lymphotoxicity

Sepsis alters the megakaryocyte-platelet transcriptional axis resulting in platelet lymphotoxicity. M. Sharron , 1 A.S Benton, 1 A. A. Wiles, 1 N. Sabzevheri, 2 E. P. Hoffman, 1,2 R. J. Freishtat 1,2

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Aims and Hypotheses

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What is a hypothesis? Give an example of a hypothesis, based on a study you know about.

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Section A Experiments

Section A Experiments. Example Section A. 1.State the null hypothesis for your practical project. (4) 2.Describe a method you would use to conduct your practical project. (19) 3.Give an advantage of using an alternative experimental design in this practical project. (3)

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Introduction to Testing a Hypothesis

Introduction to Testing a Hypothesis. Testing a treatment. Descriptive statistics cannot determine if differences are due to chance. A sampling error occurs when apparent differences are by chance alone. Example of Differences due to chance alone. Examples:.

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Significance Testing

Significance Testing. Difference between two means. Review. What does significance mean? Why do we use the symbol P<.05 to indicate significance?. Defining significance. An event is very unlikely to have happened by chance IF the null hypothesis is true. .

310 views • 9 slides