Table 4

 Levels of agreement within mechanism code

SignifierKappa value
All kappa values statistically significant at p<0.05.
Direct mechanism
    Full codenn.nn0.92
    Level 1nn.0.97
    Level 2.nn0.92
Indirect mechanism
    Full codenn.nn0.95
    Level 1nn.0.95
    Level 2.nn0.95
Intermediate mechanism
    Full codenn.nn0.10