Summary SPSS - Techniques for Causal Analysis - Practicals + Exercisebook fully developed! Guide to passing your exam!
24 views 2 purchases
Course
(424520B6)
Institution
Tilburg University (UVT)
Hi! If you're currently looking for a document to pass your SPSS exam, you've just found the perfect guide! After many hours of puzzling to fully understand SPSS, I managed to create a SPSS 'manual' that gives you a 99% guarantee that you will pass your exam! This 20-page document is mainly written...
SPSS - Technieken voor causale analyse
Inhoud
ANOVA Pagina 2
ANOVA (assumptions) Pagina 3
ANOVA (one-way) Pagina 3
Bivariate regression analysis Pagina 6
Collinearity diagnostics Pagina 7
Descriptives function Pagina 2
Dummy variables (recoding) Pagina 5
Frequent distribution for the variable Pagina 2
Histogram (create) Pagina 3
Levene’s test Pagina 3
Mean function Pagina 2
Missing 9/-systems Pagina 5
Missing values (how to find them) Pagina 5
Multicollinearity Pagina 7
New datafile (only contains needed variables) Pagina 5
New syntax file Pagina 2
Notes exercise book Pagina 10
Path model Pagina 8
Pearson Correlation Pagina 4
R squared change Pagina 7
Residual score (generate for each variable) Pagina 6
Scatterplot (create) Pagina 4
Scatterplot (out of more independent variables) Pagina 6
Sequential logistic regression analysis Pagina 9
Sequential regression analysis Pagina 7
Subset means selection Pagina 4
Notes exercisebook bestaat uit de onderdelen:
1. One-Way Between-Subjects ANOVA
2. Bivariate and Partial Correlation
3. Bivariate OLS Regression Analysis
4. Multiple OLS Regression Analysis and Sequential Regression Analysis
5. OLS Regression with Dummy Variables
6. OLS Regression with Interaction Terms (Moderation Analysis)
7. Estimate Path models with OLS Regression
8. Binary Logistic Regression
Pagina 1 van 20
,Practical 1 – ANOVA & Pearson Correlation
Assignment 1: The Basics (Syntax & Descriptives)
ANOVA analyseert verhouding van de twee componenten van totale varia(n)tie in de data –
tussengroepvariantie en binnengroepvariantie:
Pearson’s correlatiecoefficient r is een gestandaardiseerde maat voor de lineaire samenhang tussen
2 continu (of dichotome*) variabelen
New syntax file
File → New → Syntax
Click on the Paste button instead of the Ok button → will add command to the bottom of the
original file. You do not have to make a new file for each analysis. In order to run the command you
created, select the piece of syntax in the syntax file and run it (CTRL+R).
Generating a frequency distribution for the variable
Analyze → Descriptive Statistics → Frequencies
Remember to use the Paste button and run the syntax!
➔ Ook handig voor missing variables!!!
A frequency function is not very useful for continuous variables, a better alternative is using summary
statistics, such as the mean, median, and variance → Descriptives function.
Descriptives function
Analyze → Descriptive Statistics → Descriptives (→ Paste → Run)
If one or more of the statistics are missing, go to the Statistics tab in the descriptive screen and make
sure all relevant boxes are ticked before pasting your syntax (using options)!
Another way to find the mean is using the Means function.
Means function
Analyze → Compare Means and Proportions → Means → Select variable → Paste → Run
Dependent list if you just want to know the mean of the sample, independent list (layer 1 of 1) when
you want to know the mean for different categories.
Pagina 2 van 20
, Assignment 2: ANOVA
Assumptions of an ANOVA
- Correct measurement level of the X and Y variables
- Normal distributions of scores on the Y variable (for the full dataset, and within each group)
- No outliers
- Approximately equal variances in all the groups
- The observations should be independent (within- and between groups)
Checking the normality assumption of the Y variable is often done visually through a histogram.
A histogram is a bar-graph where the range of continuous scores on a variable are grouped into
(small) categories on the X-axis (horizontal). The frequency count of these categories are plotted on
the Y-axis (vertical) to see how often different values occur.
Making a Histogram
Navigate to Graphs → Histogram
- Plot a histogram for the variable by adding it to the Variables box.
- If you want to know whether the dependent variable is normally distributed within different
groups, we should add the other variable in the Columns box.
- ALSO tick the box Display normal curve in the dialog window, to have SPSS show a reference
line in the graph.
- Paste and run the syntax
- You will see different histograms.
One-Way ANOVA
looking between companies
Analyze → Compare Means and Proportions→ One-Way ANOVA
- Enter the dependent variable and the independent variable (= the factor) that indicates the
different groups
- Paste and run the syntax
Levene’s test
For homogeneity of variances
Analyze → Compare Means and Proportions → One-Way ANOVA
- Enter the dependent variable and the independent variable (= the factor) that indicates the
different groups
- Click on the Options button and check the box for Homogeneity of variance test
- Paste and run the syntax
P < 0.05 wel significant, anders niet!
When variables are insignificant, the variances do not differ significantly from each other.
Pagina 3 van 20
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Yf. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $6.97. You're not tied to anything after your purchase.
