5 - Statistics Cheat Sheet Flashcards
Which pre-experimental designs are there?
- One-Shot Case Study
- One-Group Pretest-Posttest Design
- Static-Group Comparison
Which true-experimental designs are there?
- Pretest-Posttest Control Group Design
- Solomon Four-Group Design
- Posttest-Only Control Group Design
What are the 8 sources for internal invalidity?
- History
- Maturation
- Testing
- Instrumentation
- Regression
- Selection
- Mortality
- Interactions between these
What are the 4 sources for external invalidity?
- Interaction of Testing and X
- Interaction of Selection and X
- Reactive Arrangements
- Multiple X-Interference
What different data can you have for “analysis of differences”?
- Normally distributed metrical data
- Not normally distributed metrical data
- Ordinal data
- Nominal data
What method would you use to compare the mean value of a sample with a determined (test) value?
One-sample t-test
What method would you use to compare the means of two independent samples?
Independent Samples t-Test
What method would you use to compare the means of n independent samples?
One-Way ANOVA, if the variances of the samples are not homogeneous -> Welch Test
What method would you use to compare the means of two dependent samples?
Paired Sample t-Test (two different outputs for samples with and without homogeneous variances)
What method would you use to compare the means of n dependent samples?
Repeated Measures in „General Linear Model“
What methods are there for not normally distributed metrical data?
Mann-Whitney Test, Kolmogorov- Smirnov Test, Wilcoxon Test
With ordinal or nominal data, how can you compare the empirical distribution with some theoretical distribution?
Chi – Square Test
With ordinal data, how can you compare two independent Samples?
Mann-Whitney Test, Kolmogorov- Smirnov Test
With ordinal data, how can you compare two dependent Samples?
Wilcoxon Test
With nominal data, how can you compare two or more independent samples?
Chi – Square Test of Independency (Crosstabs)
