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. 2011 May 3;6(5):e19142. doi: 10.1371/journal.pone.0019142

Table 2. Characteristics of composite scales and items, with internal consistency reliability coefficient and corrected item-total correlations.

Item number Scale and items Factor loadings on primary scale Internal consistency reliability coefficient: Cronbach's α* Corrected item-total correlations
Residents' evaluations Residents' evaluations Faculty self-evaluation Residents' evaluations Faculty self-evaluation
Learning climate 0.84 0.76
Q01 Encourages residents to participate actively in discussions 0.604 0.633 0.624
Q02 Stimulates residents to bring up problems 0.605 0.652 0.538
Q03 Motivates residents to study further 0.781 0.702 0.609
Q04 Stimulates residents to keep up with the literature 0.798 0.702 0.528
Q05 Prepares well for teaching presentations and talks 0.519 0.530 0.373
Professional attitude and behavior towards residents 0.89 0.81
Q06 Listens attentively to residents 0.771 0.715 0.617
Q07 Is respectful towards residents 0.807 0.747 0.700
Q08 Is easily approachable during on-calls 0.848 0.756 0.624
Q09 Is easily approachable for consultation 0.834 0.796 0.542
Communication of goals 0.94 0.89
Q10 States learning goals clearly 0.807 0.830 0.674
Q11 States relevant goals 0.827 0.885 0.846
Q12 Prioritizes learning goals 0.821 0.878 0.811
Q13 Repeats stated learning goals periodically 0.820 0.850 0.710
Evaluation of residents 0.87 0.79
Q14 Evaluates residents' specialty knowledge regularly 0.511 0.727 0.515
Q15 Evaluates residents' analytical abilities regularly 0.516 0.729 0.376
Q16 Evaluates residents' application of knowledge to specific patients regularly 0.500 0.720 0.419
Q17 Evaluates residents' medical skills regularly 0.668 0.745 0.734
Q18 Evaluates residents' surgical skills regularly 0.626 0.666 0.694
Q19 Educates about surgical skills in the operation room 0.778 0.481 0.504
Feedback 0.88 0.86
Q20 Gives positive feedback to residents regularly 0.597 0.641 0.673
Q21 Gives corrective feedback to residents 0.853 0.709 0.634
Q22 Explains why residents are incorrect 0.799 0.810 0.776
Q23 Offers suggestions for improvement 0.790 0.783 0.735

*Cronbach's α>0.70 was taken as an indication of satisfactory reliability of each composite scale.

The items shared the same subject with different foregoing sentences “During my residency in obstetrics and gynecology, the attending faculty generally…” (residents' evaluation of faculty) or “In my role as an attending faculty, I generally…” (faculty self-evaluation).

Item-total correlation values <0.3 indicate that the corresponding item does not correlate well with the composite scale.