ZuoTi.Pro
Question

3) Imagine I randomly select a group of smokers and a group of nonsmokers. I then measure lung disease in each group. What ty
math   Statistics-And-Probability   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

3.

This is nonequivalent control group post test-only design. The participants can be either smokers or nonsmokers. then we did post test measures.

We cannot conclude that any observed differences in lung disease are due to smoking because variables different from smoking may differ between two groups.

4.

Pretest/Post test designs are an improvement because they are allowing us to assess whether groups are similar or different before introducing treatment and how much they will change after introducing the treatment. By this way, we can determine that whether groups are in fact equivalent before treatment.

0 0
Add a comment
Know the answer?
Add Answer to:
3) Imagine I randomly select a group of smokers and a group of nonsmokers. I then measure lung di...
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. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • Multiple Question: 12. The relative risk for dying from lung cancer among smokers is 10. The...

    Multiple Question: 12. The relative risk for dying from lung cancer among smokers is 10. The relative risk for dying from heart disease among smokers is 1.5. The etiologic fraction for lung cancer due to smoking is 0.8 and the etiologic fraction for heart disease due to smoking is 0.2. Based on these finding, we can say that Smoking seems much more likely to be causally related to heart disease than to lung cancer. Smoking seems much more likely to...

  • Lung Cancer & Smoking Case Study A causal relationship between cigarette smoking and lung cancer was...

    Lung Cancer & Smoking Case Study A causal relationship between cigarette smoking and lung cancer was first suspected in the 1920s on the basis of clinical observations. To test this apparent association, numerous epidemiologic studies were undertaken between 1930 and 1960. Two studies were conducted by Richard Doll and Austin Bradford Hill in Great Britain The first was a case-control study begun in 1947 comparing the smoking habits of lung cancer patients with the smoking habits of other patients. The...

  • > Researchers found 400 current smokers to volunteer for a study in which each was randomly...

    > Researchers found 400 current smokers to volunteer for a study in which each was randomly assigned to one of three treatment groups Group 1 received an electronic cigarette (e-cig) in which each cartridge contained 72 mg of nicotine, Group 2 received an e-cig that contained 5.4 mg of nicotine, and Group 3 received an e-cig that contained no nicotine. The subjects did not know which group they were assigned. During the course of the intervention, subjects dropped out of...

  • A large group of people are enrolled in a study A. Retrospective Cohort study to investigate...

    A large group of people are enrolled in a study A. Retrospective Cohort study to investigate the effects of diet on heart disease. Everyone is free of heart disease at the cross sectional study start of the study and people are followed for C. Prospective Cohort study 10 years to see if disease develops. What study design is this? D. Case control study E. RCT Researchers wish to investigate the association between complications during Caesarian section delivery and hospital of...

  • - Match the descriptions with the study type A large group of people are enrolled in...

    - Match the descriptions with the study type A large group of people are enrolled in a study to investigate the effeets of diet on A. Cross sectional study heart disease. Everyone is free of heart disease at the start of the study and people BD B. Prospective Cohort study are followed for 10 years to see if disease develops. What study design is this? C. Retrospective Cohort study D.RCT Researchers wish to investigate the association between complications during Caesarian...

  • Question Completion Status: Match the descriptions with the study type A large group of people are...

    Question Completion Status: Match the descriptions with the study type A large group of people are enrolled in a study to investigate A. Prospective Cohort B. # the effects of diet on heart disease. Everyone is free of heart disease at the start of the study and people are followed for.Case control study 10 years to see if disease develops. What study design is C.Retrospective Cohort this? D. RCT E. Cross sectional study C.Researchers wish to investigate the association between...

  • Question 1: Suppose we are testing the effectiveness of a new hypnosis treatment at reducing cigarette...

    Question 1: Suppose we are testing the effectiveness of a new hypnosis treatment at reducing cigarette smoking. 20 smokers are recruited. Half are randomly assigned to a control treatment where they are given some information about the dangers of smoking and sent home. The other half receives the new hypnosis treatment. Four weeks later we measure the number of cigarettes each participant smokes in a week. We want to see if people who receive the treatment smoke a different average...

  • Please I need help with these to help me understand more. Part 4 Some studies have...

    Please I need help with these to help me understand more. Part 4 Some studies have shown that physical activity has many benefits for mental health. The director of health care planning in a local hospital thinks that if he introduced exercise based therapy for people admitted with depression, this may reduce hospital costs by reducing the likelihood of these patients being re- admitted to the hospital. However, before introducing exercise based therapy for all patients with depression he wanted...

  • RARATCHATA found 500 ant amokars to volunteer for A study in which AACH WAR Andy A...

    RARATCHATA found 500 ant amokars to volunteer for A study in which AACH WAR Andy A had to an ofitran traalrem UDA Group 1 recated an electric algata which mach carriga contained 72 mg of nicotina Group 2 racaved an Ad that are 5.4 mg af nicotine, and Group 9 received an e-ciguat contained no ricoline. The subjecte did no n which group they were assigned. During the course of the interieron subjecte cropped out of the study. At the...

  • My Study on Sickle Cell Anemia Research In 500 words, answer the following questions 1.Select your...

    My Study on Sickle Cell Anemia Research In 500 words, answer the following questions 1.Select your study sample 2. How have you selected your sample? 3. How will you select your sample population and give the rationale behind your decision Please type the solution on the keyboard so that I can copy and paste Q. No 1. Answer : Sickle cell disease : It is defined as it is a chronic heriditory form of Anemia, in which the red blood...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT