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Table 3 Subscale and item characteristics of the 10 items PCTB scale ( N= 172)

From: Professional Care Team Burden (PCTB) scale – reliability, validity and factor analysis

   n (%) Corrected r(it) Cronbach’s alpha, if item is deleted
Subscales and items Strongly disagree Disagree Neutral Agree Strongly agree Missing
Structural Burden (Cronbach’s Alpha = .784)         
  1. My work performance is respected by my colleagues. 0 (0%) 6 (3.5%) 42 (24.4%) 81 (47.1%) 39 (22.7%) 4 (2.3%) .541 .756
  2. I can discuss work related issues with my colleagues. 1 (0.6%) 6 (3.5%) 17 (9.9%) 76 (44.2%) 70 (40.7%) 2 (1.2%) .582 .737
  3. I feel that the contact with my superiors is good. 3 (1.7%) 5 (2.9%) 21 (12.2%) 72 (41.9%) 71 (41.3%) 0 (0%) .592 .731
  4. I can participate in organizing the daily routine in my organization. 4 (2.3%) 15 (8.7%) 28 (16.3%) 70 (40.7%) 51 (29.7%) 4 (2.3%) .664 .694
Objective Burden (Cronbach’s Alpha = .711)         
  5. The loss of ability to communicate in persons with dementia bothers me.* 26 (15.1%) 70 (40.7%) 47 (27.3%) 22 (12.8%) 6 (3.5%) 1 (0.6%) .571 .568
  6. I can manage behaviours resulting from disorientation in persons with dementia. 0 (0%) 5 (2.9%) 31 (18%) 98 (57%) 35 (20.3%) 3 (1.7%) .513 .666
  7. Difficult behaviours (Aggression, Wandering) of persons with dementia are difficult to bear.* 30 (17.4%) 71 (41.3%) 43 (25%) 23 (13.4%) 5 (2.9%) 0 (0%) .544 .609
Subjective Burden (Cronbach’s Alpha = .550)         
  8. I can handle constructive critique. 0 (0%) 2 (1.2%) 25 (14.5%) 101 (58.7%) 43 (25%) 1 (0.6%) .364 .456
  9. I can keep personal problems out of my daily work routine. 2 (1.2%) 3 (1.7%) 11 (6.4%) 90 (52.3%) 66 (38.4%) 0 (0%) .357 .455
  10. My personal life/family environment is supportive and is able to unburden me. 2 (1.2%) 7 (4.1%) 22 (12.8%) 59 (34.3%) 82 (47.7%) 0 (0%) .381 .431
  1. Note. Corrected r(it) = corrected item-total-correlation.
  2. *Negatively poled items (Item Nr. 5 and 7): strongly disagree = 0, disagree = 1, neutral = 2, agree = 3, strongly agree = 4.
  3. All other items are positively poled: strongly disagree = 4, disagree = 3, neutral = 2, agree = 1, strongly agree = 0.