Significant and non significant results

    • [PDF File]When is statistical significance not significant? - SciELO

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      argues that “statistically significant results are achieved more frequently in published than unpublished studies. Such publication bias is generally seen as the consequence of a wide - spread prejudice against non significant results”2. Conversely, Henkel (1976: 07) argues

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

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      chi-square test statistic ... • 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, and no more than 20% of cells can have values lower than 5. •Potential problem with small courses when compared between many categories of ethnicity 4 February 2014 …

    • RESEARCH Open Access Spin interpretation of randomized …

      (32/43) of main text results in Cohort B included at least one statistically non-significant result, this was not reflected in the abstract where only 28% contained (12/43) at least one statistically non-significant result. Conclusions: Spin is a frequent phenomenon in reports of RCTs of wound treatments. Studies without statistically

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

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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‟, „statistically significant‟, „trend towards [an effect]‟, „borderline significant‟) should not be used in EPOC reviews. In general point estimates and …

    • [PDF File]The number needed to treat: problems describing non-significant …

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      The number needed to treat: problems describing non-significant results The number needed to treat (NNT) and its counterpart, the number needed to harm (NNH), are commonly used measures of effect in studies of mental health treatments. The NNT is an absolute measure, which conveys a more direct and intuitive

    • [PDF File]Computed tomography for suspected pulmonary embolism …

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      non-significantfindings, and 48follow-up CTs for significant findings. Nine percent of total follow-up CTs yielded signifi-cant results of cancer diagnosis. There was no statistical sig-nificance (p=0.27) while comparing the number of CTs or-dered between significant and non-significant incidental find-ings. From our database of 1708 CT studies ...

    • [PDF File]The Difference between 'Significant' and 'Not Significant' Is Not ...

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      The Difference Between "Significant" and "Not Significant" is not Itself Statistically Significant Andrew Gelman and Hal Stern It is common to summarize statistical comparisons by declara tions of statistical significance or nonsignificance. Here we dis cuss one problem with such declarations, namely that changes in

    • [PDF File]Writing up your results – APA Style guidelines

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      less, you can say your results were marginally significant. Example: Results indicated a marginally significant preference for pecan pie (M = 3.45, SD = 1.11) over cherry pie (M = 3.00, SD = .80), t(5) = 1.25, p = .08. If your p-value is over .10, you can say your results revealed a non-significant trend in the predicted direction. Example ...

    • [PDF File]Significant Figures .edu

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      Significant Figures The number of significant figures is the number of digits whose values are known with certainty. The numerical values of the experimental results must be written according to specific rules. The number of significant figures that should be used in stating a result is inseparably

    • [PDF File]6.1 Statistically Significant .edu

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      6.1 Statistically Significant ! A phrase that we hear a lot in any statistics course. " And used very loosely on television a lot. ! Has a very technically meaning, but we will start by introducing the concept of something being statistically significant. ! See Television clips on “Statistical Significance”.

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