A Systems View Across Time and Space
 | Necessity motivated | Opportunity motivated | P value |
---|---|---|---|
Number | 273 | 64 | Â |
Median (IQ range) | |||
 ENTV | 1700000 (6520000) | 4302500 (119137500) | 0.002 |
 NPSV | 0 (0) | 0 (1098750) | 0.592 |
 NPMV | 0 (0) | 0 (0) | 0.001 |
 NMKV | 0 (0) | 0 (0) | 0.001 |