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. 2017 Jul 18;14(7):800. doi: 10.3390/ijerph14070800

Table 5.

T-test results for the comparisons of the crowding and thinned forest settings using the SD scale.

Crowding Forest Thinned Forest
Average S.D. Average S.D. t p r
Bright (1)–Dark (7) 2.28 1.60 1.11 1.08 3.207 0.005 ** 0.614
Open (1)–Closed (7) 2.44 1.72 1.11 1.18 2.576 0.020 * 0.53
Artificial (1)–Natural (7) 5.28 1.18 4.78 1.35 1.164 0.261 - 0.272
Smelly (1)–Odorless (7) 2.65 1.71 2.28 1.41 0.848 0.408 - 0.202
Still (1)–Animated (7) 2.94 1.30 3.44 1.38 1.231 0.235 - 0.287
Comfortable (1)–Uncomfortable (7) 2.39 1.65 1.11 0.96 2.537 0.021 * 0.525
Quiet (1)–Noisy (7) 2.00 1.61 1.50 1.38 1.231 0.235 - 0.287
Ugly (1)–Beautiful (7) 3.78 1.40 4.78 0.94 2.525 0.022 * 0.523
Pleasing sound (1)–Irritating noise (7) 1.94 1.26 2.06 1.16 0.270 0.790 - 0.066
Friendly (1)–Unfriendly (7) 2.06 1.35 1.33 1.03 1.959 0.067 # 0.43
Dull (1)–Refreshing (7) 3.78 1.77 4.89 1.08 2.149 0.046 * 0.463
Orderly (1)–Chaotic (7) 3.94 1.30 2.50 1.29 3.424 0.003 ** 0.639
Warm (1)–Cool (7) 4.50 1.25 4.67 1.33 0.483 0.636 - 0.117
Insecure (1)–Secure (7) 3.72 1.64 4.89 1.02 2.817 0.012 * 0.565
Gentle lighting (1)–Too bright (7) 1.00 1.03 0.89 0.90 0.383 0.707 - 0.093
Thin (1)–Thick (7) 3.83 1.20 2.50 0.92 4.408 0.000 ** 0.731
Flat (1)–Three dimensional (7) 4.39 1.38 4.44 1.34 0.212 0.834 - 0.052
Awaking (1)–Soothing (7) 3.89 1.32 3.94 1.21 0.152 0.881 - 0.037
Enchanted (1)–Disenchanted (7) 1.78 1.44 1.61 1.24 0.615 0.547 - 0.148
Fragrant (1)–Malodorous (7) 1.94 1.11 1.89 0.96 0.223 0.826 - 0.055
Non enjoyable (1)–Enjoyable (7) 4.06 1.55 4.89 1.18 1.815 0.087 # 0.403
Restless (1)–Calm (7) 4.28 1.41 5.06 0.87 2.072 0.054 # 0.45
Dry (1)–Wet (7) 3.11 1.08 3.17 0.92 0.148 0.884 - 0.036
Nondescript (1)–Unique (7) 2.61 1.20 3.00 1.41 1.197 0.248 - 0.279
Healthy (1)–Unhealthy (7) 1.94 1.47 1.11 0.83 2.557 0.020 * 0.528

**: p < 0.01, *: p < 0.05, #: p < 0.1, -: not significant, paired t-test; n = 18. Likert scale is seven stages, i.e., 1 (left item) and 7 (right item); For example, with regard to “Bright-dark” score, thinning forest seem to have lower score than crowding forest, however, as a result of subjective appraisal, it shows that thinned forests were evaluated brighter.