Identify the treatment and response variables, English

A group of do-gooder college students believes that herbal tea has remarkable powers. To test this belief, they make weekly visits to a local nursing home, visiting with the residents and serving them herb tea. The nursing home staff reports that after several months many of the residents are more cheerful and healthy. A dour professor scoffs at the idea that herb tea helped the residents. It's all confounding, says the professor.

(a) Identify the treatment and outcome/response variables in this study.

(b) What sort of confounding might the professor have in mind?

A scholar is interested in analyzing the effect of spirituality and spiritual practice on personal attitudes about health. She sends out a questionnaire asking individuals to report (i) whether they have a chronic illness (possible answers are "yes" or "no"), (ii) the importance of spirituality to themselves (possible answers are "not important" or "important or very important"), (iii) their attitude about their own health (possible answers are "positive or very positive" or "not positive").

(a) State the treatment the scholar is interested in studying, and state the outcome on which she wishes to ascertain its effect.

(b) Is this an experiment?

(c) Suppose the scholar finds a negative relationship between the treatment and the outcome you identified in the first sub-part. Can you explain this relationship purely as a selection effect, i.e. assuming that the treatment effect is 0?

(d) Suppose the scholar finds a positive relationship between the treatment and the outcome you identified in the first sub-part. Can you explain this relationship purely as a selection effect, i.e. assuming that the treatment effect is 0?

(e) Suppose instead of using the questionnaire described above, the scholar invites some randomly chosen individuals to spiritual counseling sessions provided at her expense. Then, after all counseling sessions are finished, she asks all individuals in the study (those invited to counseling and those not invited) to report their attitudes about their own health. Is this an experiment, and can you critique the possible relationships she might find on grounds of selection bias?

Posted Date: 2/26/2013 5:01:38 AM | Location : United States







Related Discussions:- Identify the treatment and response variables, Assignment Help, Ask Question on Identify the treatment and response variables, Get Answer, Expert's Help, Identify the treatment and response variables Discussions

Write discussion on Identify the treatment and response variables
Your posts are moderated
Related Questions
Ask question #MiniGrant sells second hand motor vehicles from his Sydney car yard. Grant enters into a contract with Eagle Eye Security whose guards are required to patrol his prem

In this essay you will write an argument paper is which you present at least three reasons to support a conclusion that you have reached on a controversial, contemporary social/pol

What is a compound-complex sentence? A compound-complex sentence is made up of two or more independent clauses and at least one subordinate clause. Examples 1. Frances

Writing as a Process and Practice In the Introduction to Creative Writing lesson, I said that you have to write in order to find out what you want to write about. So what does th

how can i be a good english speech?

You wish to develop a project to provide facilities for high school boys who have dropped-out of school. Put together a project proposal for presentation to your company or institu

Building Your Writing Portfolio A helpful way to organize your writing is in a portfolio. Photographers, designers, architects, painters and other creative people keep samples

1. In the Castle of My Skin creates a narrative that documents the multiple ways in which slavery occurs. Discuss, paying particular attention to the representation of a Barbadia