Match each of the following studies and sources of bias. A. Undercoverage Bias B. Self selection...

Match each of the following studies and sources of bias.

A. Undercoverage Bias

B. Self selection bias

C. Survivorship bias

	In a study of anxiety disorders, anxiety levels were first measured during a 3 month, no treatment baseline period, and then during a 3 month treatment period. Participants with more severe symptoms tended to drop out of the study during the baseline period.
	A study looking at the most popular musical genres collected data from Pandora (internet radio).
-	A large company was seeking to increase morale. To understand what makes for satisfied employees, an ad was placed in the company newsletter asking for employees to volunteer to be interviewed about their satisfaction with the company. Employees who were more satisfied with the company were more likely to respond to the ad than those who were less satisfied.
-	An ad for a study investigating the mechanisms by which different methods of exercise affect health indicating that participants would be asked to follow a strict and high intensity workout routine for four months. People who enjoy working out were more likely to volunteer than others.
-	A study of the study habits of undergraduate students was being conducted at UNM mail campus. Participants were selected from all of New Mexico's colleges and universities. Participants needed to travel to UNM on 3 occasions in order to participate. Students attending schools that are far from Albuquerque were more likely to miss the follow up sessions than local participants.

Expert Solution

Firstly you need to understand the three types of bias given above:

A) Undercoverage Bias - This type of bias occurs when the population is not appropriately represented in the sample.

B) Self selection bias - This type of bias occurs when respondents have an option to select themselves in a study. Generally respondents with strong opinions are over represented.

C) Survivorship bias - This bias is caused because some respondent fail a certain selection process or dropout in between the study and thus may result in a sample that is finally analysed and is not representative of the population.

In a study of anxiety disorders, anxiety levels were first measured during a 3 month, no treatment baseline period, and then during a 3 month treatment period. Participants with more severe symptoms tended to drop out of the study during the baseline period - Survivorship bias (due to dropouts)

A study looking at the most popular musical genres collected data from Pandora (internet radio) - Undercoverage Bias (as other sources are not considered)

A large company was seeking to increase morale. To understand what makes for satisfied employees, an ad was placed in the company newsletter asking for employees to volunteer to be interviewed about their satisfaction with the company. Employees who were more satisfied with the company were more likely to respond to the ad than those who were less satisfied - Self selection bias (Volunteering allowed)

An ad for a study investigating the mechanisms by which different methods of exercise affect health indicating that participants would be asked to follow a strict and high intensity workout routine for four months. People who enjoy working out were more likely to volunteer than others - Self selection bias (Volunteering allowed)

A study of the study habits of undergraduate students was being conducted at UNM mail campus. Participants were selected from all of New Mexico's colleges and universities. Participants needed to travel to UNM on 3 occasions in order to participate. Students attending schools that are far from Albuquerque were more likely to miss the follow up sessions than local participants - Survivorship bias (due to dropouts)

orchestra answered 1 year ago

Match each of the following studies and sources of bias. - In a study...

Match each of the following studies and sources of bias. - In a study of anxiety disorders, anxiety levels were first measured during a 3 month, no treatment baseline period, and then during a 3 month treatment period. Participants with more severe symptoms tended to drop out of the study during the baseline period. A study looking at the most popular musical genres collected data from Pandora (internet radio). A large company was seeking to increase morale. To...

a) In each of the following situations, indicate whether the potential bias is a selection bias,...

a) In each of the following situations, indicate whether the potential bias is a selection bias, a nonparticipation bias, or a response bias. Explain how this is an example of the particular type of bias in a complete sentence. In a college town, college students are hired to conduct door to door interviews to determine whether city residents think there should be a law forbidding loud music at parties. A magazine sends a survey to a random sample of its...

Match the type of selection with the example. Why is each its respective match? Directional Selection...

Match the type of selection with the example. **Why is each its respective match?** Directional Selection Stabilizing Selection Disruptive Selection Negative Frequency Dependent Selection A) Squirrels that learn fastest have the most offspring B) Squirrels feed on acorns or birdseed. When most squirrels feed on acorns, those that eat birdseed have the highest fitness (and vise versa) C) Long ears attract the most mates. Short ears improve survival in the winter. Medium sized ears provide neither benefit. D) Squirrels that...

Match each example to the type of bias that would result . A researcher wants...

Match each example to the type of bias that would result . A researcher wants to know what proportion of AZ residents support light rail expansion. S/he arranges a two-month study period during which every single customer who boards the light rail must complete a survey - A researcher want to know how many hours per week the average physician works. S/he mails a survey to every single medical student in the US and receives responses from tens...

What is selection bias in sampling? How can it be controlled? How does selection bias affect...

What is selection bias in sampling? How can it be controlled? How does selection bias affect the potential use of evidence yielded by research that has a sample with selection bias? Please include a reference. Thank you

A researcher is collecting data in a large community. For each scenario identify the bias. Match...

A researcher is collecting data in a large community. For each scenario identify the bias. Match the number with the letter. 1. The researcher begins with mentioning that the survey will take 30 minutes of their time. 2. No one seems to be home at four houses on her route. She does not return at a later time to try to find residents at home, but leaves them a phone number to contact her. 3. She selects a block where...

What type of bias is indicated by each of the following? If there is not bias,...

What type of bias is indicated by each of the following? If there is not bias, then put down 'no bias'. a Portions of the population are excluded from the sample. b Information from the sample is typical of information in the population. c Information from the sample overemphasizes a particular stratum of the population d Those responding to a survey or poll differ systematically from the nonrespondents.

1-The healthy worker effect is a form of what type of bias? Selection bias Observation bias...

1-The healthy worker effect is a form of what type of bias? Selection bias Observation bias Interviewer/recording bias Recall bias 2-Which of the following alternative explanations should be ruled out in order to consider a study valid? Bias Confounding Random error All of the above 3-Which of the following define bias? The probability that the observed result is due to "chance" A systematic error in the design or conduct of a study that leads to an incorrect or invalid estimate...

Match each scenario with the type or mode of selection that fits best. Answers can be...

Match each scenario with the type or mode of selection that fits best. Answers can be used more than once. Group of answer choices 1.A population of Madagascar hissing cockroaches lives in a woodpile. It suffers heavy predation from lizards. Because their heads are small, the lizards are unable to eat the very largest adult cockroaches, and instead prey upon small and medium sized adults. What type of selection do the lizards impose on the roaches? 2.Indian paintbrush flowers vary...

Which of the following is true and which of the following is false? Self-selection leads to...

Which of the following is true and which of the following is false? Self-selection leads to incorrect statistical inference about the target population. True False Self-selection is a non-sampling error and can be reduced by increasing sample size. True False

Question