Table 3-1: Similarity measures for binary variables (a, b, c and d equal 1)
Further measures are:
• Correlation coefficient Phi
• Coefficient kappa (Fleiss 1981: 217-225; Bacher 1996: 204-206)
• City block distance
• Euclidean distance
• Squared Euclidean measure
For binary variables the last three measures are equal and distance measures.