we'll select “Estimate sample size” we'll enter the power or (1 - β) we desire; we'll enter the alpha level or α at which we're planning to test. Our sample size calculation requires just one more number: the expected effect size. But for some very stupid reason, we can't ...
The scope of the dissertation statistics help service that Statworkz provides extends to all the stages of statistical research. Researchers can access our team for: Power Analysis / Sample Size Calculation Research Methods Consultation and Questionnaire Design Data Analysis using SPSS, AMOS, STATA, E...
<![CDATA[ Cohen’s kappa tells to what extent 2 ratings agree better than chance level. Simple tutorial with calculation examples, formulas & effect size rules. ]]> </description> <content:encoded> <![CDATA[ <!--body--> Cohen’s kappa is a measure that indicates to ...
• Cook's distance. A measure of how much the residuals of all cases would change if a particular case were excluded from the calculation of the regression coefficients. A large Cook's D indicates that excluding a case from computation of the regression statistics changes the coefficients ...
The Correlations table presents Spearman's correlation, its significance value (i.e., p-value) and the sample size that the calculation was based on. In this example, the sample size, N, is 10, Spearman's correlation coefficient, rs, is 0.669, which is statistically significant (p = .0...
The Correlations table presents the point-biserial correlation coefficient, the significance value and the sample size that the calculation is based on. In this example, we can see that the point-biserial correlation coefficient, rpb, is -.358, and that this is statistically significant (p = ....
Basic statistical analysis function including the description statistics and calculation, also includes the most popular in the basic analysis of the common statistical functions, such as summary, counting, cross analysis, classification, comparison, descriptive statistics, factor analysis, regression analysis...
Conversion functions are also available from the Derive node, for temporary conversion during a derive calculation. You can also use the Derive node to perform other manipulations, such as recoding string fields with categorical values. See the topic "Recoding Values with the Derive Node" on page...
To find out the point estimate of the indirect effect at which the p-value in the Sobel Test is statistically significant, simply calculate theUnstandardized Coefficient Beta forA * B. For our example the calculation looks like this: 0.413 * 0.733 =0.3027 ...
For this example: you need to perform each of the three steps in the calculation and evaluation of a chi-square statistic. That is: Step 1: Establish that the assumptions are met for the calculation of the chi-square test, formulate a Ho and Ha hypothesis, decide on an Alpha level for...