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. Author manuscript; available in PMC: 2018 Sep 13.
Published in final edited form as: Appl Res Qual Life. 2017 Apr 4;12(2):251–288. doi: 10.1007/s11482-017-9516-9

Table 4.

Internal consistency and dimensionality estimates for the Feeling Tone Questionnaire: Alpha, McDonald’s Omega Total and explained common variance (ECV) for the total sample and demographic subgroups from the bifactor model analyses (from “Psych” R package)

Sample N Cronbach’s Alpha Ordinal Alpha McDonald’s Omega Total ECV (2 group model) ECV (3 group model)
16 item set
Total Sample 6756 0.773 0.852 0.856 27.555 26.337
Random sample group 1 3378 0.773 0.852 0.856 28.331 27.114
Random sample group 2 3378 0.774 0.851 0.856 26.518 27.723
Race/Ethnicity: White 4960 0.779 0.858 0.862 33.944 30.734
Race/Ethnicity: Black 1144 0.743 0.827 0.835 7.201 23.790
Race/Ethnicity: Hispanic 517 0.757 0.834 0.839 12.025 33.516
13 Item Set
Total Sample 6756 0.782 0.857 0.862 40.882 68.706
Random sample group 1 3378 0.781 0.858 0.862 42.231 67.890
Random sample group 2 3378 0.782 0.857 0.862 38.633 68.346
Race/Ethnicity: White 4960 0.784 0.861 0.865 43.935 70.614
Race/Ethnicity: Black 1144 0.771 0.845 0.852 25.874 34.049
Race/Ethnicity: Hispanic 517 0.769 0.842 0.848 26.481 59.743
Positive Affect Item Set
Total Sample 6756 0.808 0.878 0.879 77.350 72.565
Random sample group 1 3378 0.803 0.875 0.875 76.619 72.859
Random sample group 2 3378 0.814 0.882 0.882 76.049 71.979
Race/Ethnicity: White 4960 0.804 0.878 0.878 77.847 73.145
Race/Ethnicity: Black 1144 0.815 0.876 0.877 71.934 65.772
Race/Ethnicity: Hispanic 517 0.803 0.864 0.866 68.854 67.783
Negative Affect Item Set
Total Sample 6756 0.605 0.733 0.734 47.195 51.626
Random sample group 1 3378 0.608 0.737 0.737 44.079 47.600
Random sample group 2 3378 0.602 0.729 0.731 51.850 47.312
Race/Ethnicity: White 4960 0.601 0.732 0.733 44.680 53.227
Race/Ethnicity: Black 1144 0.591 0.719 0.721 47.186 34.854
Race/Ethnicity: Hispanic 517 0.677 0.782 0.787 56.692 48.505