Table 1 Difficulty indices (P) and selectivity for the LQPT
Item | Total (N 90) | Chronic (N 30) | Episodic (N 30) | Healthy (N 30) | Selectivity (N 90) | ||||
|---|---|---|---|---|---|---|---|---|---|
P | SD | p | SD | P | SD | P | SD | ||
1 | .86 | .354 | .73 | .450 | .90 | .305 | .93 | .254 | .341 |
2 | .79 | .410 | .43 | .504 | .93 | .254 | 1.00 | .000 | .656 |
3 | .77 | .425 | .50 | .509 | .83 | .379 | .97 | .183 | .617 |
4 | .63 | .485 | .63 | .490 | .60 | .498 | .67 | .479 | .236 |
5 | .81 | .394 | .60 | .498 | .90 | .305 | .93 | .254 | .470 |
6 | .62 | .488 | .30 | .466 | .70 | .466 | .87 | .346 | .493 |
7 | .59 | .495 | .30 | .466 | .53 | .507 | .93 | .254 | .564 |
8 | .80 | .402 | .60 | .498 | .87 | .346 | .93 | .254 | .390 |
9 | .90 | .302 | .73 | .450 | .97 | .183 | 1.00 | .000 | .560 |
10 | .77 | .425 | .53 | .507 | .83 | .379 | .93 | .254 | .341 |
11 | .82 | .384 | .63 | .490 | .87 | .346 | .97 | .183 | .490 |
12 | .68 | .470 | .40 | .498 | .63 | .490 | 1.00 | .000 | .644 |
13 | .90 | .302 | .70 | .466 | 1.00 | .000 | 1.00 | .000 | .536 |
14 | .77 | .425 | .43 | .504 | .90 | .305 | .97 | .183 | .739 |
15 | .83 | .375 | .63 | .490 | .87 | .346 | 1.00 | .000 | .505 |
16 | .80 | .402 | .63 | .490 | .77 | .430 | 1.00 | .000 | .582 |
17 | .90 | .302 | .77 | .430 | .93 | .254 | 1.00 | .000 | .503 |
18 | .79 | .410 | .63 | .490 | .77 | .430 | .97 | .183 | .581 |
19 | .87 | .342 | .70 | .466 | .93 | .254 | .97 | .183 | .614 |
20 | .68 | .470 | .47 | .507 | .70 | .466 | .87 | .346 | .556 |
21 | .78 | .418 | .67 | .479 | .70 | .466 | .97 | .183 | .472 |
22 | .91 | .286 | .87 | .346 | .93 | .254 | .93 | .254 | .006 |