Null Hypothesis Direct Method Assumptions How to run a Mann Whitney Test in SPSS (Video) What is a Mann Whitney U Test? The Mann-Whitney U test is thenonparametricequivalent of thetwo sample t-test.While thet-testmakes an assumption about the distribution of apopulation(i.e. that thesample...
Levene’s test examines if 2+ populations all have equal variances on some variable. Null Hypothesis Assumptions Levene’s test in SPSS Output Reporting Levene’s Test - What Is It? If we want to compare 2(+) groups on a quantitative variable, we usually want to know if they have equal...
SPSS Tutorial (for Beginners): Intro to SPSS > The runs test ((also called the Wald-Wolfowitz one-sample runs test) will tell you if the order of a binary variable is random or not. A “run” is a sequence of observations that change in a similar direction. For example, you might ...
What is mediation analysis in statistical research? How to run mediation analysis in SPSS using two methods. How to estimate the indirect effect using the Sobel Test. How to calculate the point effect in mediation analysis. How to interpret mediation analysis in SPSS.A...
Sign– The sign test has the null hypothesis that both samples are from the same population. The sign tests compares the two dependent observations and counts the number of negative and positive differences. It uses the standard normal distributed z-value to test of significance. ...
Learn about factor analysis - a simple way to condense the data in many variables into a just a few variables.
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 it can be generalized...
The alternative hypothesis would be: There is a difference in scores on the cognitive test from students in Class A and the national average score. In SPSS I have just one dataset: Class A test scores. The test scores variable is simply calledClass_A. ...
Results: If you have a small “Sig.” value in the “Tests of Normality” box, this indicates your data is not normally distributed. In other words, you would reject the null hypothesis that your data is normally distributed. SPSS gives you results for theK-S testat the same time. These...
The null hypothesis for this test is that the medians of two samples are equal. It is generally used: As a non-parametric alternative to the one-sample t test or paired t test. For ordered (ranked) categorical variables without a numerical scale. How to Run the Wilcoxon Signed Rank Te...