What Does Non Statistically Significant Mean

What Does Non Statistically Significant Mean The reason this is important is that changes in statistical significance are not themselves statistically significant The significance level of a quantity can be changed largely by a small non significant change in some statistical quantity

If a result is statistically significant that means it s unlikely to be explained solely by chance or random factors In other words a statistically significant result has a very low chance of occurring if there were no true effect in a research study Insignificant means not important small Not significant means didn t reach the confidence threshold your results could be significant but also insignificant confident but not important or your observations could be significant but not

What Does Non Statistically Significant Mean

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Non significant results could be due to many things including a small effect or low statistical power of the experiment Additionally significant results are often interpreted or over interpreted as important results and may be equated or confused with large effect If the p value the result is not statistically significant and the null hypothesis is not rejected For instance if you set a significance level of 0 05 and obtain a p value of 0 03 the result is statistically significant p value is less than the significance level so you would reject the null hypothesis

Describe how a non significant result can increase confidence that the null hypothesis is false Discuss the problems of affirming a negative conclusion When a significance test results in a high probability value it means that the data provide little or 1 A statistically significant relationship or effect does not mean or imply that a relationship or effect is highly probable real true biologically or economically significant Some statistically analyzed findings are highly significant but are not clinically significant

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It does not tell us that the effect is zero Therefore we never interpret a non significant result as no difference between means or no relationship between variables It could mean that the tests run were just unable to detect the association or difference Accordingly non significant results shouldn t be interpreted as NO EFFECT Figure 1 From Blanchard and Bogaert 1996 a mean numbers of older and younger brothers and sisters for 302 homosexual men and 302 matched heterosexual men b logistic regression of sexual orientation on family variables from these data Signi cant beta coef cients differ statistically from The American Statistician November 2006

Statistically significant means that the result we are seeing is unlikely to be due to chance But this likeliness is or at least should be set by you your stakeholders based on how comfortable you are with the risk of being wrong and having the results due to chance You didn t get significant results Now you may be asking yourself What do I do now What went wrong How do I fix my study One of the most common concerns that I see from students is about what to do when they find non significant results

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The reason this is important is that changes in statistical significance are not themselves statistically significant The significance level of a quantity can be changed largely by a small non significant change in some statistical quantity

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If a result is statistically significant that means it s unlikely to be explained solely by chance or random factors In other words a statistically significant result has a very low chance of occurring if there were no true effect in a research study


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What Does Non Statistically Significant Mean - A nonsignificant result in statistical analysis refers to a finding that does not provide sufficient evidence to reject the null hypothesis In hypothesis testing researchers typically set a significance level commonly 0 05 to determine whether the observed data is