Single blind study
- Double blind study
Single blind study
A single-blind RCT is a randomised trial in which one group of individuals involved in the trial does not know the identity of the intervention that is given to each participant. Usually it is the participants or the investigators assessing the outcomes who do not know the identity of the interventions. Single blind designs are used frequently to evaluate educational or surgical interventions. For instance, investigators could evaluate different educational strategies in patients who would be unaware of the different types of strategies that are being compared. In addition, two surgical procedures could
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List one mortality measure for assessing the health status of children in a community. How will you measure them? Indicate.
Beta error
The following table shows the number of males and females who arc anemic and non-anemic in a research study.
Test whether there is a relationship between anemia and sex status in the population under study.
Test at 05 level of significance
Establishing relationship between two variables
What do you understand by the terms - Level of Significance and Power? Discuss their relevance in sample size determination.
What is meant by sampling? With the help of an example, explain the concept of random sampling, stratified sampling, cluster sampling and purposive sampling.
List the various types of tools available for data collection while undertaking research.