A certain HMO is attempting to show the benefits of managed care to an insurance

Question

A certain HMO is attempting to show the benefits of managed care to an insurance company. The HMO believes that certain types of doctors are more cost-effective than others. One theory is that certification level is an important factor in measuring the cost-effectiveness of physicians. To investigate this, the HMO obtained independent random samples of 19 physicians from each of the three certification levels (Board certified (C); Uncertified, board eligible (E); and Uncertified, board ineligible (I)) and recorded the total per-member, per-month charges for each (a total of 57 physicians). Identify the treatments for this experiment. A. the 57 physicians B. the HMO C. the total permember, per-month charge D. the three certification groups: C, E, and I

Explanation / Answer

D. The three certifications groups, C, E and I. Treatments refer to combinations of specific levels from all the factors that an experimental unit receives. Here experimental units are physicians and treatments are the three levels of factors that is C, E, and I.

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