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. Author manuscript; available in PMC: 2013 Jun 16.
Published in final edited form as: J Speech Lang Hear Res. 2012 Jan 9;55(3):754–763. doi: 10.1044/1092-4388(2011/10-0216)

Table 2.

PPVT Item Difficulty and Discrimination by Item Set for PPVT-3a and PPVT-3b

Item Set Difficulty (b)
Discrimination (a)
Mean SD Mean SD

3a 3b 3a 3b 3a 3b 3a 3b
1 −2.35 −2.44 0.28 0.20 1.63 1.48 0.36 0.33
2 −1.94 −1.96 0.23 0.18 1.80 1.57 0.37 0.21
3 −1.75 −1.71 0.23 0.25 1.98 1.73 0.38 0.47
4 −1.57 −1.67 0.16 0.34 1.92 1.77 0.53 0.74
5 −1.25 −1.39 0.16 0.29 2.20 1.84 0.64 0.47
6 −1.04 −1.10 0.21 0.21 2.08 1.80 0.79 0.53
7 −0.88 −0.97 0.12 0.32 1.91 1.93 0.66 0.84
8 −0.69 −0.75 0.37 0.37 1.46 1.62 0.54 0.31
9 −0.34 −0.63 0.10 0.23 1.70 1.73 0.49 0.70
10 −0.25 −0.37 0.22 0.39 1.58 1.70 0.52 0.66
11 −0.03 −0.03 0.25 0.40 1.53 1.57 0.47 0.59
12 0.21 0.21 0.31 0.38 1.33 1.37 0.41 0.40
13 0.46 0.60 0.22 0.26 1.38 1.55 0.41 0.47
14 0.52 0.92 0.57 0.50 0.98 1.38 0.46 0.70
15 1.07 1.12 0.35 0.42 1.12 1.13 0.42 0.56
16 1.67 1.45 0.48 0.60 0.68 1.00 0.31 0.35
17 2.76 2.31 0.53 0.52 0.60 0.78 0.25 0.21