Question 91
A surgeon's wound infection rate is 32%. Further examination of which of the following data will provide the most useful information in determining the cause of this surgeon's infection rate?
Question 92
The CAHPS (Consumer Assessment of Healthcare Providers and Systems) program is a multiyear public-private
initiative to develop standardized surveys of patients' experiences with ambulatory and facility-level care. Healthcare
organizations, public and private purchasers, consumers, and researchers use CAHPS results to:
initiative to develop standardized surveys of patients' experiences with ambulatory and facility-level care. Healthcare
organizations, public and private purchasers, consumers, and researchers use CAHPS results to:
Question 93
For example, if you are using a survey to gather patient satisfaction feedback by email, you would not send a survey to ever y patient. You would start by sending surveys to roughly 50 percent of the patients and see how many are returned. This limited survey allows you to determine the response rate. Assume that
25 percent of these patients return the surveys.
The next task is to determine how representative of the total population these respondents are. To test this question, you need to develop a profile of the total population. Typically, this profile is based on standard demographics such as gender, age, type of visit, payer class, and whether the respondent is a new or returning patient. If the distribution of these characteristics in the sample is similar (within 5 percent) to that found in the total population, you can be comfort able that your sample is reasonably representative of the population. If the characteristics of the sample and the population show considerable variation, however, you should adjust your sampling plan.
This example clarifies that:
25 percent of these patients return the surveys.
The next task is to determine how representative of the total population these respondents are. To test this question, you need to develop a profile of the total population. Typically, this profile is based on standard demographics such as gender, age, type of visit, payer class, and whether the respondent is a new or returning patient. If the distribution of these characteristics in the sample is similar (within 5 percent) to that found in the total population, you can be comfort able that your sample is reasonably representative of the population. If the characteristics of the sample and the population show considerable variation, however, you should adjust your sampling plan.
This example clarifies that:
Question 94
He used his understanding of statistics to design tools to respond to variation. Following his arrival at Western Electric Co. in 1924, Shewhart introduced the concepts of common cause, special cause variation and statistical control. He designed these concepts to assist Bell Telephone of repairs within its transmission systems.
Who is he?
Who is he?
Question 95
Basically an operational definition is a description in quantifiable terms, of what to measure and the specific steps
needed to measure it constantly. A good operational definition:
needed to measure it constantly. A good operational definition: