Sometimes called quantitative variables. Called Scale data in SPSS.
Interval variables that can be measured along a continuum and they have a numerical
Ratio variables are interval variables, but with the added condition that 0 (zero) of the measurement indicates that there is none of that variable.
Sometimes called qualitative, discrete, or dichotomous variables. Called Ordinal and Nominal data in SPSS.
Ordinal data that has a distinct order. There’s a meaning to the order.
Nominal data are distinct groups with no meaning to the order.
VARIABLE TYPE | TEST |
---|---|
Categorical | Frequencies |
Categorical | Explore for Categorical Data |
Continuous | Descriptives |
Continuous | Explore for Continuous Data |
IV |
DV |
TEST |
---|---|---|
Continuous | Continuous | Correlation |
Categorical (≥ 2 groups) | Categorical (≥ 2 groups) | Chi-Square |
Categorical (2 groups) | Continuous | Independent Samples T-test |
Categorical (1 group 2 conditions) | Continuous | Paired Samples T-test |
Categorical (≥ 2 groups) | Continuous | One-Way Between Subjects ANOVA |
1 Group | Continuous (≥ 3 conditions) | One-Way Within Subjects ANOVA (Repeated Measures) |
IV 1 |
IV 2 |
DV |
TEST |
---|---|---|---|
Continuous | Continuous | Continuous | Simple Linear Regression |
Continuous (≥ 2) | Continuous | Multiple Regression | |
Continuous (≥ 3) | Path Analysis/Structural Equation Modeling (SEM; Predictive Modeling) | ||
Continuous | Continuous or Categorical | Continuous | Stepwise Multiple Regression |
Continuous | Continuous or Categorical | Continuous | Hierarchical Regression |
Continuous (≥ 1) | Categorical (≥ 1) | Categorical (2 groups) | Logistic Regression |
Continuous (≥ 1) | Categorical (≥ 1) | Categorical (≥ 3 groups) | Multinomial Logistic Regression |
Categorical | Categorical | Categorical | Log-Linear Regression |
Categorical | Categorical | Continuous | Factorial ANOVA (2 X 2 ANOVA) |
Categorical | Categorical | Continuous | One-Between-One-Within ANOVA (a.k.a. Mixed Factorial) |
Categorical | Categorical or Continuous | Continuous | ANCOVA |
Categorical (≥ 1) | Categorical (optional) | Continuous (≥ 2) | MANOVA |
Categorical (≥ 1) | Categorical (optional) | Continuous (≥ 2) | MANCOVA |