Table 3 Cronbach’s Alpha “Estimate of internal consistency” for All measurements: IAP & IBP for all measures (IAP = 0–22 mmHg) Versus measures for High IAP (IAP > 12 mmHg)
IAP = 0–22 mmHg | IAP > 12–22 mmHg | IAP > 20–22 mmHg | ||
|---|---|---|---|---|
Case Processing Summary | Valid | 388 | 81 | 12 |
Excluded | 0 | 307 | 376 | |
Total | 388 | 388 | 388 | |
Item Statistics | Mean IAP | 8.2542 | 16.1732 | 21.3312 |
Mean IBP | 8.3509 | 16.4547 | 22.4345 | |
Standard Deviation IAP | 5.19970 | 3.02496 | .54325 | |
Standard Deviation IBP | 5.41462 | 3.97039 | 1.23482 | |
Reliability Statistics | Cronbach’s Alpha | .982 | .951 | .787 |
Cronbach’s Alpha Based on Standardized Items | .983 | .969 | .936 | |