GRE (Graduate Record Examinations) Psychology Measurement and Methodology-Statistical Procedures Study Material (Page 14 of 25)

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# Inferential Statistics: Important Definitions

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## Important Definitions

**Population**: Complete set of possible observations that can be made on the statistical universe is known as population. “Universe” refers to elementary units themselves and “population” means observations made on the units. Both these terms are frequently used interchangeably.**Sample**: Collection of numbers usually drawn at random from population of numbers, representing portion of statistical population is known as sample. It includes fewer element…

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# Statistical Tests in Psychology: Important Statistical Tests

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## Important Statistical Tests

- Parametric Tests
**Student՚s t-test**: A t-test is any statistical hypothesis test in which the test statistic follows a Student՚s t-distribution if the null hypothesis is supported**Analysis of Variance (ANOVA)**: Analysis of variance (ANOVA) is a collection of statistical models, and their associated procedures, in w…

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