A migraine is a particularly painful type of headache,which patients sometimes wish to treat with acupuncture.To determine whether acupuncture relieves migrainepain, researchers conducted a randomized controlledstudy where 89 females diagnosed with migraineheadaches were randomly assigned to one of two groups:treatment or control. 43 patients in the treatment groupreceived acupuncture that is specifically designed to treatmigraines. 46 patients in the control group receivedplacebo acupuncture (needle insertion at non-acupointlocations). 24 hours after patients received acupuncture,they were asked if they were pain free. Results aresummarized in the contingency table below (Allais,2011).(round answers to 2 decimal places)Pain Free:Pain Free:TotalYesNoTreatment103343Control24446Total127789 d) Do the data provide convincing evidence that there is areal pain reduction for those patients in the treatmentgroup? Or do you think that the observed differencemight just be due to chance?Olt is impossible to tell merely by comparing thesample proportions because the difference could bethe result of random error in our sampleOYes, 23% is much higher than 4%

A randomized control trial is a research study where participants are randomly allocated to the…

Answered: A migraine is a particularly painful…

Phlebotomy Essentials

6th Edition

ISBN:9781451194524

Author:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Publisher:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Chapter1: Phlebotomy: Past And Present And The Healthcare Setting

Section: Chapter Questions

Problem 1SRQ

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Screening test A as a sensitivity of 78% and a specificity of 85%. Screening test B has a sensitivity of 85% and a specificity of 90%. Given that they are applied to the same population and the same disease, which of the following statement is correct? Screening test A has a higher yield than Screening test B Screening test A is more valid than Screening test B Screening test B has better predictability than Screening test A Screening test B is more valid than Screening test A Screening test A has better predictability than Screening test B
In the context of a case control study, matching can help you: a. Eliminate random error b. Ensure a large sample size c. Ensure comparability between cases and controls d. Study the factors you match on as potential exposures
Match as appropriate Sensitivity Specificity Predictive value of a positive test or positive predictive value Predictive value of a negative test or negative predictive value A. Ability of a screening test to correctly identify all screened individuals who have the disease or outcome of interest B. Probability of someone screened negative to actually not have the disease or outcome of interest C. Probability of someone screened positive to actually have the disease or outcome of interest D. Ability of a screening test to correctly rule out individuals who actually do not have the disease or outcome of interest
Only 2, explain properly
Discuss which are the elements of the protocol for implementing a questionnaire data collection method. Elaborate a strategy for questionnaire design addressing the research question: "Does COVID-19 affect the work satisfaction of employees?". Propose four main questions that are suitable in your view to be part of this questionnaire. Briefly motivate your choice of questions and the strategy for the question-design that you have used.
Table 2 Pearson's correlations matrix between the SF-36 do- - mains - Ribeirão Preto, 2007. Domains 1 1. Physical Functioning 1.00 2. Physical Role 21 1.00 42** 34* 1.00 3. Bodily Pain 4. General Health 5. Vitality 6. Social Functioning 7. Emotional Role 8. Mental Health *p≤0.05; **p 3 44**.09 28* 1.00 .45** .28* 31* 27* .11 27 98 52** 09 19 30* Which domains demonstrated the strongest correlation? What was the significance level of the correlation? For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIUS Paragraph V Arial EE † {} 4 5 6 ⒸX X² X₂G XO 49** 1.00 41** .55** 1.00 27* 43**.42** 1.00 51** 80** .54** .44** 1.00 지기 KH + 4 v 8 10pt >¶¶< - ABC
The total deviation is the: A. Treatment Deviation squared B Treatment Deviation + Unexpected Deviation + Error Deviation C. Treatment Deviation D. Treatment Deviation + Error Deviation
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2:33 º coursera.org/learn/pat + ℗ Lesson 2 Quiz Back . Graded Quiz 15 min 10 total points English Due Jun 23, 11:59 PM -04 3. "A systematic process designed for investigating what, how, and why something happened and to figure out how to prevent something from happening again" is the definition of: Sentinel event Error Failure modes and effects analysis Root cause analysis 1 point 4. Errors of omission include (select all that apply): Wrong patient given medication Wrong drug given Failing to order a medication that was indicated Failing to assess for pregnancy ||| < 1 point
1. Which of the following study designs can account for confounding by variables that have not been measured? A. Prospective CohortB. Randomized Controlled Trial C. Cross-SectionalD. Case-Control 2. Suppose these same investigators now want to conduct a study to examine whether loss of 20 or more teeth is a risk factor for stroke. Should they consider hypertension to be a confounding variable?[see attachment] A. Yes B. No E. None of the above 3. Participants were recruited who resided close to a large urban hospital. For this study, the most relevant consequence of this methodological choice:[see attachment] A. Reduced losses to follow-up B. Reduced generalizabilityC. Reduced powerD. Reduced Hawthorne effect 4. Which of the following tests is the best choicce to test the null hypothesis that the unasjusted prevalence of hypertension is the same among partiicpants with fewer than 20 teeth and 20 or more teeth? A. Unpaired t-test, B. Paired t-test, C. Analysis of variance (ANOVA), D.…
At Center Hospital there is some concern about the high turnover of nurses. A survey was done to determine how long (in months) nurses had been in their current positions. The responses (in months) of 20 nurses were 27 3 4 13 29 39 31 45 12 9 6 27 33 30 32 10 21 35 9 39 A box-and-whisker plot of the data is shown below. 50 45 40E 35 32.5 30E 27 25- 20 15E 10 Find the interquartile range. Select one: O a. 40.5 O b. 23.0 О с. 42.0
What is the major assumption and concepts of model and role-modeling theory by Erickson.

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