| Nature of Question | Number of IV | Number of DV | Number of CV | Level of measurement | Distribution of scores | Statistical test |
| Group comparison | 1 | 1 | 0 | Categorical/Continuous | Normal | t-test |
| Group comparison | 1 or more | 1 | 0 | Categorical/Continuous | Normal | Analysis of Variance (ANOVA, F-test) |
| Group comparison | 1 or more | 1 | 1 | Categorical/Continuous | Normal | Analysis of Covariance (ANCOVA) |
| Group comparison | 1 | 1 | 0 | Categorical/Continuous | Non-normal | Man-Whitney U test |
| Association between groups | 1 | 1 | 0 | Categorical/Categorical | Non-normal | Chi-square test |
| Relate variables | 1 | 1 | 0 | Continous/Continous | Normal | Pearson product moment correlation |
| Relate variables | 2 or more | 1 | 0 | Continous/Continous | Normal | Multiple regression |
| Relate variables | 1 | 1 or more | 0 | Categorical/Categorical | Non-normal | Spearman rank-order correlation |