Statistics: Significance, Power, Sample Size & Effect Size

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วัฒนา ชยธวัช

Abstract

Statistics has definitions, data, numbers, symbols, formulas, and figures that make this subject is too difficult to learn and the learners have negative attitudes and block their learning. Statistics is an essential part in researches. The power analysis is the combinations of the four related factors: significance level, power of a test, effect size, and sample size. To understand the power analysis, the learners should begin in order for data, frequency distribution, percentage, measure of central tendency, probability, standard value transformation, sampling distribution, and hypothesis testing. This article used delineation, example, statistics symbols and pictures as needed in order for students or researchers to understand and apply appropriately.

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References

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