A community health nurse is providing teaching to a client who is being enrolled in a randomized controlled trial. Which of the following statements by the client indicates an understanding of the teaching?
"I will not know if I am going to be in the intervention or control group."
"The study will last for 10 years. You will contact me annually for an interview and blood work."
"You'll need to find other participants like me but who do not have this disease."
"The survey will take an hour to complete and then I'll be done."
The Correct Answer is A
Choice A: "I Will Not Know if I Am Going to Be in the Intervention or Control Group."
This statement indicates an understanding of the concept of blinding in a randomized controlled trial (RCT). In an RCT, participants are randomly assigned to either the intervention group or the control group, and they are often blinded to which group they are in to prevent bias. This helps ensure the validity and reliability of the study results.
Choice B: "The Study Will Last for 10 Years. You Will Contact Me Annually for an Interview and Blood Work."
While this statement may describe the duration and follow-up procedures of some studies, it does not specifically indicate an understanding of the key aspects of a randomized controlled trial, such as randomization and blinding. The focus here is on the logistics rather than the methodology of the RCT.
Choice C: "You'll Need to Find Other Participants Like Me but Who Do Not Have This Disease."
This statement suggests a misunderstanding of the typical participant selection process for an RCT. In many RCTs, especially those testing new treatments, participants are selected based on having the condition being studied. The comparison is usually between those receiving the intervention and those receiving a placebo or standard treatment, not between those with and without the disease.
Choice D: "The Survey Will Take an Hour to Complete and Then I'll Be Done."
This statement indicates a misunderstanding of the nature of participation in an RCT. RCTs often involve multiple assessments, follow-ups, and possibly interventions over a period of time. A single survey is unlikely to encompass the full scope of participation in an RCT.
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Related Questions
Correct Answer is D
Explanation
Choice A Reason:
The cause-specific mortality rate measures the number of deaths attributed to a specific cause within a population during a given time period. While this measure is useful for understanding the impact of a particular disease on a population, it does not directly indicate the virulence of a virus. Virulence refers to the severity or harmfulness of a disease, which is better captured by the case fatality rate.
Choice B Reason:
The age-specific mortality rate calculates the number of deaths within specific age groups in a population. This measure helps identify age-related mortality trends but does not provide information about the virulence of a virus. Age-specific mortality rates are more useful for understanding the impact of diseases across different age demographics rather than assessing the severity of a new virus.
Choice C Reason:
Proportionate mortality refers to the proportion of deaths in a population attributable to a specific cause relative to all deaths. This measure helps in understanding the relative importance of different causes of death but does not directly measure the virulence of a virus. Proportionate mortality is more about the distribution of causes of death rather than the severity of a particular disease.
Choice D Reason:
Case fatality rate (CFR) is the most appropriate measure for determining the virulence of a new virus. CFR is calculated by dividing the number of deaths caused by the disease by the number of diagnosed cases of the disease, then multiplying by 100 to get a percentage. This measure directly indicates the lethality of the virus by showing the proportion of diagnosed cases that result in death. It is a critical indicator for assessing the severity and potential impact of a new infectious disease.
Correct Answer is D
Explanation
Choice A Reason:
The quick and colorful approach is a method often used for brainstorming and generating ideas in a visually engaging manner. It involves using colorful charts, sticky notes, and other visual aids to help participants think creatively and organize their thoughts. However, this method does not typically involve the use of questionnaires for data collection.
Choice B Reason:
The simplex method is a mathematical approach used for linear programming and optimization problems. It helps in finding the best possible solution from a set of feasible solutions. This method is highly analytical and does not involve the use of questionnaires for data collection or analysis.
Choice C Reason:
The criteria weighting method is used to evaluate and prioritize different options based on specific criteria. Participants assign weights to each criterion based on its importance, and then score each option against these criteria. While this method is useful for decision-making, it does not inherently involve the use of questionnaires for data collection.
Choice D Reason:
Nominal group planning is a structured method for group brainstorming that encourages contributions from everyone. It involves the use of questionnaires to gather individual opinions and then aggregates these responses to identify the most important issues or solutions. This method is particularly effective for prioritizing community needs as it ensures that all voices are heard and considered.
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