Table 3.
Mean item-total correlation | Cronbach's alphaa | |||
NFAS-4 | NFAS-5 | NFAS-4 | NFAS-5 | |
Walking/standing | 0.74 | 0.79 | 0.91 | 0.93*** |
Holding/picking | 0.55 | 0.65 | 0.82 | 0.88*** |
Lifting/carrying | 0.70 | 0.77 | 0.89 | 0.92*** |
Sitting | 0.53 | 0.60 | 0.66 | 0.74*** |
Managing | 0.66 | 0.72 | 0.87 | 0.91*** |
Cooperation/communication | 0.60 | 0.66 | 0.81 | 0.85*** |
Senses | 0.27 | 0.53 | 0.69 | 0.69 |
Total scores | 0.62 | 0.70 | 0.95 | 0.96** |
a Cronbach's alpha values for NFAS-4 and NFAS-5 are compared, * p < 0.05; ** p < 0.01; *** p < 0.001