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# Study design

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Statistical questionsStatistical and non statistical questions

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Statistical questionsGet 5 of 7 questions to level up!

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Reasonable samplesIdentifying a sample and populationExamples of bias in surveysExample of undercoverage introducing biasCorrelation and causalityIdentifying bias in samples and surveysSimulation and randomness: Random digit tables

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Valid claimsGet 3 of 4 questions to level up!

Making inferences from random samplesGet 5 of 7 questions to level up!

Identifying the population and sampleGet 3 of 4 questions to level up!

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Picking fairlyTechniques for generating a simple random sampleTechniques for random sampling and avoiding biasSampling methods reviewSamples and surveys

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Using probability to make fair decisionsGet 3 of 4 questions to level up!

Simple random samplesGet 3 of 4 questions to level up!

Sampling methodsGet 5 of 7 questions to level up!

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Types of statistical studiesWorked example identifying experimentWorked example identifying observational studyWorked example identifying sample studyObservational studies and experimentsAppropriate statistical study example

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Types of statistical studiesGet 3 of 4 questions to level up!

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Introduction to experiment designMatched pairs experiment designThe language of experimentsPrinciples of experiment designRandom sampling vs. random assignment (scope of inference)

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Experiment designsGet 3 of 4 questions to level up!