| Uncoupled | Elderly | Behavior | Behavior + Elderly | |
Number of adjustable parameters | 17 | 21 | 27 | 31 | |
First Phase | Iterations | 11,588 | 7412 | 5784 | 7505 |
Chi-Square value | 62.6 | 45.7 | 35.9 | 36.4 | |
Second Phase | Iterations | 54 | 36 | 76 | 32 |
Chi-Square value | 516.4 | 496.2 | 328.0 | 361.5 | |
% improvement over parent model | 98.7 | 3.9 | 36.5 | 30.0 |