Question: When the Cochrane Collaboration (discussed on page 537) was first getting started, a report in New Scientist (Vine, 21 January 1995), announced that the UK

When the Cochrane Collaboration (discussed on page 537) was first getting started, a report in New Scientist (Vine, 21 January 1995), announced that the UK Cochrane Centre in Oxford would be launching the Cochrane Database of Systematic Reviews, which will “focus on a number of diseases, drawing conclusions about which treatments work and which do not from all the available randomized controlled trials” (p. 14).
a. Why do you think they only planned to include “randomized controlled trials” (that is, randomized experiments) and not observational studies?
b. Do you think they should include studies that did not find statistically significant results when they do their meta- analyses? Why or why not?

Step by Step Solution

★★★★★

3.24 Rating (165 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a They would like to make causal conclusions which canno... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

591-M-S-S-M (556).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

Recall from page 121 that 20 randomly selected customers give the following satisfaction ratings ( on a scale of 1 to 10) for a DVD recorder: 1, 3, 5, 5, 7, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 10, 10,...

Humans are able to collaborate on projects to accomplish their goals. What about chimpanzees? Do chimpanzees know when they need to recruit help in order to solve a problem and when they are able to...

Air Canada and United Continental sell seats on each others cross-border flights, coordinating fare structures and discounts while competing for passengers. In 2011 they proposed a closer...

*3. According to a report in New Scientist (Vine, 21 January 1995), the UK Cochrane Centre in Oxford is launching the Cochrane Database of Systematic Reviews, which will focus on a number of...

3. According to a report in New Scientist (Vine, 21 January 1995), the UK Cochrane Centre in Oxford is launching the Cochrane Database of Systematic Reviews, which will focus on a number of diseases,...

Calculate these numbers for 2010 Annual Report Net Income Preferred Dividends Average Common shares outstanding Stock price per share Earnings per share Gross profit Net Sales Average total assets...

Hi Sara, Please find my attachments for your information. Thank you Masoumeh P 3-2 P 3-2 The following information was obtained from the accounts of Lukes, Inc., as of December 31, 2012. It is...

case study (sumnary ) Chapter 1 An Investment Perspective of Human Resource Management READING 1.1 The India Way: Lessons for the U.S. Peter Cappelli, Harbir Singh Jitendra Singh, and Michael Useem...

Two particles, of charges q1 and q2 are separated by distance d in Figure. The net electric field due to the particles is zero at x = d/4, with V = 0 at infinity, locate (in terms of. d) any point on...

Veggies-R-Us, Inc. determined that on December 31, 20XX the Prepaid rent still in force at should be $900. Prepare the appropriate journal entry to reflect this information based upon the information...

In the _____________ approach, production normally takes place in accordance with the demand forecast. a. Classical b. JIT c. Pull d. Ideal

What kind of real-life variables are likely to be well approximated by the power-law distribution? Give two examples.

On Friday night, the owner of Chez Pierre in downtown Chicago noted the amount spent for dinner for 28 four-person tables. (a) Find the mean, median, and mode. (b) Do these measures of center agree?...

How long does it take to y from Denver to Atlanta on Delta Airlines? The table below shows 56 observations on fight times (in minutes) for the first week of March 2005. (a) Use the grouped data...

(a) Make an Excel scatter plot of X = 1990 assault rate per 100,000 population and Y = 2004 assault rate per 100,000 population for the 50 U.S. states. (b) Use Excel's =CORREL function to find the...

Purpose This assignment is designed to develop Graduate Attribute 5 , which consists of engineering methods, skills, and tools, including information technology. Upon completion of the assignment,...

What does it mean for a project to have an unacceptable payback period? O A) The project is not expected to produce enough cash inflows to cover the cash outflow before the cutoff date B) The project...

Chapter 23 Mini-Case : The Economic Ordering Quantity (EOQ) model is a concise method for maximizing the value of a companys inventory. It allows managers to quickly assess the overall costs of their...