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. 2016 Jun 15;11(6):e0157795. doi: 10.1371/journal.pone.0157795

Table 2. Descriptive Statistics for all versions of Need for Cognition (NFC) scale.

  Original Version Positive Version Reverse-I Version Reverse-II Version
  M SD M SD M SD M SD
Item 1 4.65 2.08 4.66 2.02 5.73 2.03 5.69 2.01
Item 2 4.12 1.88 4.04 1.85 4.78 2.09 4.49 1.95
Item 3 4.52 1.99 4.23 1.94 3.03 1.77 2.84 1.75
Item 4 4.69 1.97 4.02 1.83 4.01 1.98 4.54 2.20
Item 5 4.15 1.89 4.08 1.85 3.77 1.93 3.80 2.01
Item 6 4.75 1.95 4.74 1.97 4.51 2.10 4.28 2.05
Item 7 5.40 2.07 3.63 1.76 4.80 2.11 4.91 2.21
Item 8 5.43 1.95 4.30 1.90 5.18 2.07 4.52 2.06
Item 9 5.68 1.80 4.57 1.79 5.23 2.08 5.28 2.00
Item 10 3.78 1.57 4.00 1.76 3.99 1.97 3.81 1.86
Item 11 3.78 1.60 3.94 1.79 5.37 2.04 5.43 1.90
Item 12 4.08 1.93 3.75 1.91 3.38 1.89 3.41 1.81
Item 13 4.73 1.80 4.50 1.81 5.35 2.01 5.39 1.89
Item 14 4.31 1.81 4.13 1.91 3.68 1.92 4.22 1.97
Item 15 4.14 1.73 4.12 1.80 4.51 2.09 4.56 1.93
Item 16 5.36 2.05 3.58 1.93 4.52 2.25 2.53 1.75
Item 17 4.52 2.06 3.53 1.71 3.81 2.00 3.34 1.84
Item 18 3.77 1.75 3.62 1.72 4.51 2.14 4.11 2.07
Average 4.55 1.88 4.08 1.85 4.45 2.03 4.29 1.96