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. 2019 Mar 18;11(3):653. doi: 10.3390/nu11030653

Table 5.

Factor analysis on motives for coffee consumption and convergent validity and discriminant validity for each construct.

Habit and Pleasure Social Therapeutic Energy
Awakening and attention 0.880
Physical energy 0.882
Cronbach’s alpha 0.742
 Habit 0.669
 Mood and emotion 0.585
 Family tradition and culture 0.693
 Smell 0.814
 Taste 0.786
Cronbach’s alpha 0.771
 To have a break 0.841
 To socialize 0.798
Cronbach’s alpha 0.665
 Digestion 0.651
 Against headache 0.798
 Increase blood pressure 0.717
Cronbach’s alpha 0.633
 Variance explained (%) 21.97 14.12 13.91 13.90
 Mean value of factors 3.1 2.7 1.7 2.7
Convergent validity and discriminant validity
Habit and Pleasure Social Therapeutic Energy
Habit and pleasure 0 .510
Social 0.324 0.672
Therapeutic 0.092 0.187 0.525
Energy 0.273 0.194 0.173 0.776
Composite reliability 0.84 0.81 0.77 0.88

Note: Diagonal data (in italics) represent Fornell and Larcker’s average variance extracted (AVE). Subdiagonal represent the inter-construct correlations.