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. Author manuscript; available in PMC: 2015 Nov 1.
Published in final edited form as: Am J Kidney Dis. 2014 Jul 3;64(5):753–760. doi: 10.1053/j.ajkd.2014.04.021

Table 3. Item-Scale Correlations and Reliability Estimates for Three Multi-item Scales.

Q
#
Nephrologists’ Communication and Caring Alpha
=0.891
Center-Level
Reliability=0.772
q3 Doctor listens carefully 0.78 0.73
q4 Doctor explains things 0.74 0.64
q5 Doctor shows respect 0.76 0.69
q6 Doctor spends enough time 0.75 0.76
q7 Doctor cared about you 0.78 0.74
q9 Doctor seemed informed 0.56 0.89
Q# Quality of Dialysis Center Care and Operations Alpha =0.93 Center-Level
Reliability=0.84
q10 Staff listen carefully 0.77 0.67
q11 Staff explain in a way that is easy to understand 0.74 0.64
q12 Staff show respect 0.77 0.73
q13 Staff spend enough time 0.76 0.72
q14 Staff cared about you 0.79 0.95
q15 Staff makes you comfortable 0.75 0.79
q16 Staff keep information private 0.37 0.71
q17 Comfortable asking staff 0.49 0.77
q21 Staff insert needle w/o pain 0.44 0.55
q22 Staff check you closely 0.70 0.72
q24 Staff manage problems 0.70 0.23
q25 Staff professional 0.72 0.75
q26 Staff discuss diet 0.37 0.83
q27 Staff explain tests 0.56 0.73
q33 On Machine w/in 15 minutes 0.46 0.90
q34 Center Clean 0.50 0.82
q43 Satisfied w/way Problems Handled 0.71 0.32
Q# Providing Information to Patients Alpha =0.75 Center-Level
Reliability=0.79
q19 Know how to care of access site 0.33 0.42
q28 Staff give info on patient rights 0.39 0.88
q29 Staff review patient rights 0.46 0.70
q30 Staff told you what to do if health problem at home 0.44 0.91
q31 Staff told you how to get off machine if emergency 0.23 0.92
q36 Doctor/staff talk about which treatment is right for
you
0.56 0.60
q38 Doctor/staff explain why not eligible for transplant 0.46 0.43
q39 Doctor/staff talk About Peritoneal 0.33 0.75
q40 Involved in choosing treatment 0.45 0.89
1

Coefficient alpha for the scales and item-total correlations (corrected for overlap) for the items presented in this column.