Statistically significant difference

    • [PDF File]Statistical Significance, Effect Size, and Practical ...

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      have a strong but not statistically significant effect and you can have a weak but statistically significant effect. In other words, results of inferential statistics and effect sizes can vary independently, and it is therefore important that you report both. Two basic types of effect size are proportion of variance accounted for and a

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    • When Is Statistical Significance Meaningful? A Practice ...

      tistically significant relationship between variables may or may not be worthy of note or of implementation. The relationship is believed to be real, but it may not be very strong. The difference between relationships that are merely statis-tically significant and those that are statistically significant but

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    • [PDF File]Is it statistically significant? The chi-square test

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      chi-square test statistic ... •If p ≤ 0.05 statistically significant •If p > 0.05 not statistically significant 4 February 2014 Page 12 . Limitations of chi-square • If the test comes out significant that means there is some association. No further information. • Tests only two variables at one time • Some cells may have small values. Each cell should have at least a value of 1 ...

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    • [PDF File]Interpreting test statistics, p-values, and significance

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      Interpreting test statistics, p-values, and significance Analysis Test statistic Null hypothesis Alternative hypothesis Results p-value significance decision Difference-of- means test t (two-tailed) (see note 1) 1 = 2 1 ≠ 2 big t (> +2.0 or < -2.0) small p (< 0.05) yes (significant difference of …

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    • Statistical versus Practical Significance

      To review, when a difference is statistically significant, it does not necessarily mean that it is big, important, or helpful. It simply means you can be confident that there is a difference. Effect size is a measure of the strength of the relationship between two variables. In …

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    • [PDF File]How To Run Statistical Tests in Excel

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      How To Run Statistical Tests in Excel Microsoft Excel is your best tool for storing and manipulating data, calculating basic descriptive statistics such as means and standard deviations, and conducting simple mathematical operations on your numbers. It can also run the five basic Statistical Tests.

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    • [PDF File]Differentiating statistical significance and clinical ...

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      statistically significant difference is clinically significant. across multiple patient populations, the statistically significant result may be only minimally useful and thus isn’t clinically significant. If a statistically significant result isn’t clinically significant, it’s not clinical-ly helpful and shouldn’t be used to

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    • [PDF File]Results should not be reported as statistically ...

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      Results should not be reported as statistically significant or statistically non-significant “Statistical significance” is so commonly misreported and misinterpreted, that we recommend that terms such as „not significant‟, „not statistically significant‟, „significant‟,

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    • [PDF File]Research Rundowns >Quantitative Methods > Significance ...

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      hypothesis that there is no difference in reading scores between teaching teams 1 and 2. Example 2: p H .05, or Not Significant Results Among 7th graders in Lowndes County Schools taking the CRCT science exam (N = 336), there was no statistically significant difference between female students (M = 834.00, SD = 32.81) and male students

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