Table 8.
Parameter estimates and goodness-of-fit statistics from the full bivariate dual change score model of Anxiety Personality Questionnaire and Block Design performance.
| Model | Misfit/Parameters | Scaling Factor | Compare | Δfit/Parameter |
|---|---|---|---|---|
| 1. Full model | −17414/38 | 1.61 | – | – |
| CFI = 0.94 | ||||
| RMSEA = 0.03 | ||||
| 2. No couplings | −17421/34 | 1.66 | 1 | 12.79/4* |
| Test 3 Year coupling | ||||
| 3. Set Block➔Anx =0 | −17419/37 | 1.64 | 1 | 27.15/1** |
| 4. Set Anx ➔Block=0 | −17416/37 | 1.60 | 1 | 2.06/1 |
| Test 6 Year coupling | ||||
| 5.Set Block➔Anx =0 | −17414/37 | 1.63 | 1 | .04/1 |
| 6. Set Anx ➔Block =0 | −17414/37 | 1.63 | 1 | .68/1 |
|
| ||||
| Anxiety | Blocks | |||
| Parameter | Est | SE | Est | SE |
|
| ||||
| Constant Change | =1 | – | =1 | – |
| Proportional Change | −.05 | .17 | .25 | .03** |
| Three-year coupling | ||||
| Coupling Anx➔Block | – | – | .11 | .07 |
| Coupling Block➔Anx | −.09 | .03** | – | – |
| Six-year coupling | ||||
| Coupling Anx➔Block | – | – | −.01 | .01 |
| Coupling Block➔Anx | .01 | .01 | - | – |
| Mean Intercept | 50.10 | .62** | 57.26 | .68** |
| Mean Slope | 7.65 | 9.80 | −19.67 | 4.28** |
| Intercept deviation | 15.04 | 4.70** | 51.03 | 3.57** |
| Slope deviation | .74 | .64 | 3.48 | .82 |
| Error deviation | 16.67 | 1.32** | 14.77 | .79** |
Notes: Coupling Anx ➔ Block = coupling parameter γANX*BLOCKS; Coup Block ➔ Anx = coupling parameter γBLOCKS*ANX. The three-year coupling represents change over a three-year period and six-year coupling represents change over a six-year period. Est represents parameter estimate.
**
denotes p <0.01
*
denotes p < 0.05