T-Test Assumptions

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Assumptions for T-Tests
Kyle Simpson
Flashcards by Kyle Simpson, updated more than 1 year ago
Kyle Simpson
Created by Kyle Simpson over 8 years ago
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Question Answer
Assumption 1: 1. The sample was selected randomly.
Assumption 2: 2. The groups are independent. •Exception: Paired-samples t-test
Assumption 3: 3. Variables are continuous & interval or ratio level •Otherwise, use non-parametric
Assumption 4: 4. The dependent variable is normally distributed •Robust if n is large enough
Assumption 5: 5. Equal variance between the groups. •df correction (SPSS)
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