Question

Explain the concept of a selection bias and give an example of selection bias that could...

Explain the concept of a selection bias and give an example of selection bias that could occur in a case-control study.

Science   Nursing   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

When the subjects, groups or data is selected for the analysis is not randomly selected it leads to the selection bias which forms a non-representative sample of the given population. When subjects for the "control" group are not truly representative of the population that produced the cases it is an example of a

case-control study selection bias occurs. For example, if we are studying the risk of developing lung cancer amongst the smokers when the subjects for the "control" group are not truly representative of the population it is an example of selection bias.    

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
1 Question a) Create an example study scenario that would describe a cross-sectional study. b) Explain...
1 Question a) Create an example study scenario that would describe a cross-sectional study. b) Explain the concept of a selection bias and give an example of selection bias that could occur in a case-control study. c). Explain the concept of information bias and give an example of information bias that could occur in a case-control study. d). What is matching and why is it a concern in case-control studies? e). Summarize the study design, sampling, and purpose of the...
Explain the issues regarding the selection of the appropriate sample size, data-mining bias, sample selection bias,...
Explain the issues regarding the selection of the appropriate sample size, data-mining bias, sample selection bias, survivorship bias, look-ahead bias, and time-period bias.
Topic: Adverse Selection Give an example of a situation that led (or could have) to adverse...
Topic: Adverse Selection Give an example of a situation that led (or could have) to adverse selection at your place of work. (Transportation)
Topic: Adverse Selection Give an example of a situation that led (or could have) to adverse...
Topic: Adverse Selection Give an example of a situation that led (or could have) to adverse selection at your place of work. (Education/Community College)
Choose one of the following that could have biased the results: selection bias (direction: positive or...
Choose one of the following that could have biased the results: selection bias (direction: positive or negative?), confounding (direction: positive or negative?), information bias (direction: positive or negative?), and random error. 1. The authors of a cross-sectional study hypothesized that lack of regular exercise is associated with obesity in children. Their study of 12 children in Michigan, however, failed to show a statistically significant association between exercise habits and obesity (OR = 1.9, p = 0.11). 2. In a case-control...
Give an example of when an experimenter can change a study (bias) and how a participant...
Give an example of when an experimenter can change a study (bias) and how a participant can change a study.
For the survey described below, either selection bias or information bias can be operative and has...
For the survey described below, either selection bias or information bias can be operative and has the potential to influence the study validity ? A survey of disability in the elderly based on a sample of senior citizens selected from those attending dance lessons or fitness gyms in Chicago. A. Selection bias B. Information bias C. Neither selection bias nor information bias
explain the concept of cross referecing patient in the mpi give an example
explain the concept of cross referecing patient in the mpi give an example
Explain how randomized-controlled trials overcome selection bias.
Explain how randomized-controlled trials overcome selection bias.
Explain the concept of immunization and give a full example. Show All Work.
Explain the concept of immunization and give a full example. Show All Work.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT