From: The effects of at-home whitening on patients’ oral health, psychology, and aesthetic perception
Items | Media of the scale if the item is deleted | Variance of the scale if the item is deleted | Correlation item-total corrected | Cronbach’s Alpha if the item is deleted |
---|---|---|---|---|
BASELINE | ||||
8 | 45.52 | 120.605 | 0.524 | 0.880 |
Q2 | 45.86 | 124.717 | 0.363 | 0.895 |
Q3 | 46.38 | 102.485 | 0.827 | 0.849 |
Q4 | 46.71 | 102.667 | 0.813 | 0.851 |
Q5 | 46.36 | 109.814 | 0.729 | 0.861 |
Q6 | 47.93 | 112.592 | 0.581 | 0.876 |
Q7 | 46.31 | 112.358 | 0.582 | 0.876 |
Q8 | 46.05 | 111.138 | 0.831 | 0.854 |
ONE WEEK RECALL | ||||
Q1 | 49.47 | 118.499 | .593 | .900 |
Q2 | 49.74 | 123.353 | .395 | .916 |
Q3 | 50.02 | 103.561 | .838 | .878 |
Q4 | 50.24 | 98.958 | .867 | .875 |
Q5 | 50.16 | 102.590 | .814 | .880 |
Q6 | 50.29 | 108.527 | .707 | .891 |
Q7 | 49.52 | 118.675 | .565 | .903 |
Q8 | 49.69 | 112.393 | .805 | .885 |
ONE MONTH RECALL | ||||
Q1 | 52.09 | 84.483 | .708 | .910 |
Q2 | 52.46 | 84.071 | .511 | .929 |
Q3 | 52.43 | 76.940 | .888 | .894 |
Q4 | 52.63 | 78.675 | .843 | .898 |
Q5 | 52.59 | 79.628 | .750 | .906 |
Q6 | 52.52 | 84.945 | .610 | .917 |
Q7 | 52.34 | 81.283 | .737 | .907 |
Q8 | 52.20 | 81.761 | .867 | .899 |