Nurse practitioners are nurses with advanced qualifications who often act much like primary care physicians. Medical researchers wnat to design a study to compare the effectiveness of nurse practitioners and physicians. They recruit 1200 volunteer subjects for the tudy, each of whom has been diagnosed with asthma, diabetes, or high blood pressure. Describe completely randomized desgin for this experiment
What are your criteria for effectiveness? Can you quantify them? This is a place to start.
A completely randomized design is a type of experimental design where subjects are randomly assigned to different treatment groups. In the case of comparing nurse practitioners and physicians, a completely randomized design would involve randomly assigning the 1200 volunteer subjects to either a nurse practitioner or a physician for their primary care.
Here's a step-by-step process to create a completely randomized design for this experiment:
1. Start by listing the 1200 volunteer subjects who have been diagnosed with asthma, diabetes, or high blood pressure.
2. Randomly assign each subject to either the nurse practitioner group or the physician group. This can be done using a random number generator or a similar method.
3. Ensure that the assignment of subjects to the groups is done in a way that maintains balance and avoids any bias. For example, you may want an equal number of subjects with each diagnosis in each group.
4. Once the random assignment is complete, the nurse practitioner group will consist of a certain number of subjects with asthma, diabetes, and high blood pressure, and the physician group will also have a similar distribution.
5. Both groups of subjects will then receive the same level of care and treatment from their respective healthcare providers.
6. Collect data during the study to compare the effectiveness of nurse practitioners and physicians in managing and treating asthma, diabetes, and high blood pressure.
By using a completely randomized design, any differences observed in the health outcomes between the nurse practitioner and physician groups can be confidently attributed to the treatment (provider type) rather than any confounding variables or biases.