Persons as Effect Sizes
نویسندگان
چکیده
منابع مشابه
Converting Among Effect Sizes
Earlier in this Part we discussed the case where different study designs were used to compute the same effect size. For example, studies that used independent groups and studies that used matched groups were both used to yield estimates of the standardized mean difference, g. There is no problem in combining these estimates in a meta-analysis since the effect size has the same meaning in all st...
متن کاملEffect sizes for experimenting psychologists.
This article describes three families of effect size estimators and their use in situations of general and specific interest to experimenting psychologists. The situations discussed include both between- and within-group (repeated measures) designs. Also described is the counternull statistic, which is useful in preventing common errors of interpretation in null hypothesis significance testing....
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When the outcome is reported on a meaningful scale and all studies in the analysis use the same scale, the meta-analysis can be performed directly on the raw difference in means (henceforth, we will use the more common term, raw mean difference). The primary advantage of the raw mean difference is that it is intuitively meaningful, either inherently (for example, blood pressure, which is measur...
متن کاملPlanning sample sizes when effect sizes are uncertain: The power-calibrated effect size approach.
Statistical power and thus the sample size required to achieve some desired level of power depend on the size of the effect of interest. However, effect sizes are seldom known exactly in psychological research. Instead, researchers often possess an estimate of an effect size as well as a measure of its uncertainty (e.g., a standard error or confidence interval). Previous proposals for planning ...
متن کاملFrequency tables: tests, effect sizes, and explorations
Very often, the data we study as linguists are discrete in nature. That is, the linguistic elements we study come in different categories and, trivially, if two elements are labeled the same, they belong to the same category, and if they are labeled differently, they belong to different categories. In statistical approaches, this kind of scenario is usually described with the terminology of var...
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ژورنال
عنوان ژورنال: Advances in Methods and Practices in Psychological Science
سال: 2020
ISSN: 2515-2459,2515-2467
DOI: 10.1177/2515245920922982