Comparison of Mail and Telephone in Assessing Patient Experiences in Receiving Care from Medical Group Practices

The medical group survey from the CAHPS® (formerly Consumer Assessment of Health Plans Study) project, G-CAHPS, focuses on patient experiences in receiving care from their medical group practice. We compared mail and telephone responses to the GCAHPS survey in a sample of 880 patients fromfour physician groups. Patients were randomly assigned to mode. Analyses included comparison of response rates, missing data, internal consistency reliability of six multiitem scales, and mean scores. A total of 537 phone completes and 343 mail completes were obtained (54% response rate). There were no significant differences in internal consistency by mode. In addition, there was only one significant mode difference in item and composite means by mode of administration after adjusting for case-mix differences. This study indicates that mail and telephone modes of data collection for the G-CAHPS survey produce similar results.

[1]  F. J. Fowler,et al.  Comparing telephone and mail responses to the CAHPS survey instrument. Consumer Assessment of Health Plans Study. , 1999, Medical care.

[2]  Judith T. Lessler,et al.  Effects of mode of administration and wording on reporting of drug use; DHHS Pub. No. (ADM) 92-1929; Technical paper 8 , 1991 .

[3]  Jacob Cohen.  Statistical Power Analysis for the Behavioral Sciences , 1969, The SAGE Encyclopedia of Research Design.

[4]  Y. Hochberg.  A sharper Bonferroni procedure for multiple tests of significance , 1988 .

[5]  A. Zaslavsky,et al.  Psychometric Properties of a Group-Level Consumer Assessment of Health Plans Study (CAHPS) Instrument , 2005, Medical care.

[6]  C. McHorney,et al.  Comparisons of the Costs and Quality of Norms for the SF-36 Health Survey Collected by Mail Versus Telephone Interview: Results From a National Survey , 1994, Medical care.

[7]  J E Ware,et al.  My Medical Care Is Better Than Yours: Social Desirability and Patient Satisfaction Ratings , 1986, Medical care.

[8]  W M Tierney,et al.  Assessing inner-city patients' hospital experiences. A controlled trial of telephone interviews versus mailed surveys. , 1997, Medical care.

[9]  R W Sanson-Fisher,et al.  An examination of self- and telephone-administered modes of administration for the Australian SF-36. , 1998, Journal of clinical epidemiology.

[10]  F. J. Fowler,et al.  Mode Effects in a Survey of Medicare Prostate Surgery Patients , 1998 .

[11]  J. Restuccia,et al.  Obtaining information on patient satisfaction with hospital care: mail versus telephone. , 1984, Health services research.

[12]  David J. Woodruff,et al.  Statistical Inference for Coefficient Alpha , 1987 .

[13]  P. Lachenbruch.  Statistical Power Analysis for the Behavioral Sciences (2nd ed.) , 1989 .

[14]  D. Dillman.  Mail and internet surveys , 1999 .

[15]  Alan M. Zaslavsky,et al.  Using Telephone Interviews to Reduce Nonresponse Bias to Mail Surveys of Health Plan Members , 2002, Medical care.

[16]  T. Burroughs,et al.  Patient satisfaction measurement strategies: a comparison of phone and mail methods. , 2001, The Joint Commission journal on quality improvement.

[17]  J. Brown,et al.  Translating the CAHPS 1.0 Survey Instruments into Spanish. Consumer Assessment of Health Plans Study. , 1999, Medical care.