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SPSS for Beginners

WEBSPSS syntax is computer code used by SPSS for analyzing data, editing data, running statistical tests and more.. Using SPSS syntax is super easy and saves tons of time and …

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SPSS Simple Linear Regression

WEBBy default, SPSS now adds a linear regression line to our scatterplot. The result is shown below. We now have some first basic answers to our research questions. R 2 = 0.403 …

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SPSS Mediation Analysis with PROCESS

WEBAfter opening our data in SPSS, let's navigate to A nalyze R egression PROCESS v4.2 by Andrew F. Hayes as shown below. For a simple mediation analysis, we fill out the …

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Confidence Intervals for Means in SPSS

WEBwhere Ni N i denotes the number of intervals calculated on the same sample. So some Bonferroni adjusted confidence levels are. 95.00% if you calculate 1 (95%) confidence …

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What is a Dichotomous Variable

WEBA variable is naturally dichotomous if precisely 2 values occur in nature (sex, being married or being alive). If a variable holds precisely 2 values in your data but possibly more in …

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SPSS ANOVA with Post Hoc Tests

WEBThe table below shows how to report post hoc tests in APA style. This table itself was created with a MEANS command like we used for Descriptive Statistics for Subgroups. …

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SPSS Mediation Analysis

WEBOur SPSS output already includes beta for most effects but not for ab a b. However, we can easily compute it as. βab = ab ⋅ SDx SDy β a b = a b ⋅ S D x S D y. where. SDx S D x is …

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SPSS Regression Tutorials

WEBThanks. Hi Jacqueline! Mediation regression (using PROCESS) has been on our to-do list for ages but we haven't found the time yet to cover it. I don't expect it to come up any …

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Kruskal-Wallis Test

WEBA Kruskal-Wallis test requires 3 assumptions 1, 5, 8: independent observations; the dependent variable must be quantitative or ordinal; sufficient sample sizes (say, each n i …

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SPSS FREQUENCIES

WEBSPSS FREQUENCIES provides a nice way to obtain percentiles: just add a PERCENTILES subcommand followed by the desired percentiles in parentheses. The syntax below …

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How to Get (Partial) Eta Squared from SPSS

WEBResult. First off, both main effects (employment and health) and the interaction between them are statistically significant. The effect of employment (η 2 = .095) is twice as strong …

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Multiple Linear Regression in SPSS

WEBR denotes the multiple correlation coefficient. This is simply the Pearson correlation between the actual scores and those predicted by our regression model. R-square or R …

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SPSS Nonparametric Tests Tutorials

WEBNonparametric Tests - 2 Independent Samples. SPSS Z-Test for Independent Proportions Tutorial. SPSS Mann-Whitney Test – Simple Example. SPSS Median Test for 2 …

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Effect Size in Statistics

WEBSimilarly to (partial) eta squared, \ (\omega^2\) estimates which proportion of variance in the outcome variable is accounted for by an effect in the entire population. The latter, …

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