Statistical Significanceis a way to tell you if your test results are solid. Statistics isn’t an exact science. In fact, you can think of stats as very finely tuned guesswork. As stats is guesswork, we need to know how close our “guess” is. That’s where significance comes in. What...
If you're considering how this applies to sample sizes and their impact, check out this article on sample size determination. There’s also a common trap where "significant" is used interchangeably with "important." While this might work in everyday conversation, in the realm of statistics, ...
How Significant is Statistical Significance? A critique of the use of statistics in researchStatisticsstatistical significancevalidityobjectivityknowledgeThis paper takes a critical look at the use of statistics in research, with particular reference to statistical significance. The validity of statistical ...
How to tell if something is statistically significant? When conducting a statistical test, the goal is often to determine whether the observed data provides strong evidence to support or reject a specific hypothesis. Statistical significance helps assess the strength of that evidence. If the p-value...
inferential statistics After collecting data in quantitative research, we need to understand and describe the nature and relationship of the data collected as the first step: descriptive statistics. The next step is to compare your findings with the hypothesis, confirm or dispute it, and check if ...
However, you can’t tell from the ANOVA test which group differs. In order to address this, Fisher developed the least significant difference test in 1935, which is only used when you reject the null hypothesis as a result of your hypothesis test results. The LSD calculates the smallest ...
Investors often view this indicator as the"fear index"because it spikes when investors purchase a significant amount ofput optionsto protect their portfolios. Investors who buy put options believe the price of the underlying stock will fall. If theVIXspikes, it indicates fear within the market. ...
What if Jill has an attitude problem, and Jack is a great conversationalist? Who would be the better hire? 5. Oh My God! Al Gore loves this one. The graph that shows some astonishing change in the status quo. The impression is one of significant movement and is meant to shock an ...
How to run and interpret these is covered in SPSS ANOVA - Levene’s Test “Significant”. Reporting Levene’s test Perhaps surprisingly, Levene’s test is technically an ANOVA as we'll explain here. We therefore report it like just a basic ANOVA too. So we'll write something like “...
The chi-square test is sensitive to sample size. Relationships may appear to be significant when they aren’t, simply because a very large sample is used. In addition, the chi-square test cannot establish whether one variable has a causal relationship with another. It can only establish whethe...