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Table 2 Summary statistics for and correlation measures among distance measures

From: Dissimilar occupations and marital stability

 

Summary statistics

 

Distance measure

Number combinations

Mean

Standard deviation

Minimum

Maximum

Abilities

126,253

0.1416

0.0527

0

0.4168

Activities

126,253

0.2217

0.0708

0

0.5679

Knowledge

126,253

0.1796

0.0694

0

0.5766

Skills

126,253

0.3014

0.0831

0

0.6630

Overall

126,253

0.4438

0.1218

0

1.0070

 

Correlation structure

 

Distance measure

Abilities

Activities

Knowledge

Skills

Overall

Abilities

1.000

    

Activities

0.701

1.000

   

Knowledge

0.803

0.761

1.000

  

Skills

0.590

0.647

0.656

1.000

 

Overall

0.812

0.877

0.880

0.895

1.000

  1. These statistics are calculated prior to matching the distance measures to the PSID data. Hence they are not weighted to account for the prevalence of spousal pairings in occupation, i.e., the statistics treat all pairs as equally probable and attach equal weight. Our intention when reporting the measures of association is to show that each pair of measures is positively correlated and measures dissimilarity, but several pairs, such as Activities and Knowledge are far from perfectly correlated. Those two measures are capturing different dimensions of dissimilarity.