Question: Homework help please: A study published in 2007 by Christopher Johnson, professor of music education and music therapy at the University of Kansas, revealed that

Homework help please:

A study published in 2007 by Christopher Johnson, professor of music education and music therapy at the University of Kansas, revealed that students in elementary schools who took private music lessons scored around 20 percent higher in math scores on standardized tests, compared to students who did not take private music lessons. Is this a randomized experiment or an observational study?

(a) Randomized experiment, since researchers gave students standardized tests.

(b) Observational study, since whether the student took private music lessons was not randomly assigned.

or (d) Observational study, since this was not a random sample.

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

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

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!

A study published in 2007 by Christopher Johnson, professor of music education and music therapy at the University of Kansas, revealed that students in elementary schools who took private music...

0.44 Points Question 18 A study published in 2007 by Christopher Johnson, professor of music education and music therapy at the University of Kansas, revealed that students in elementary schools who...

A study published in 2007 by Christopher Johnson, professor of music education and music therapy at the University of Kansas, revealed that students in elementary schools who took private music...

Journal of Case Studies in Education Elementary teachers' experiences and perceptions of departmentalized instruction: A case study Alecia Strohl Valdosta State University Lorraine Schmertzing...

Please read carefully, about the activity instructions. Instructions: Read Chapter 2: The Ongoing Struggle for Ethnics Studies Identify at least 5 words or concepts that you learned about in this...

Greetings class, this is a writing activity for the second week of this chapter. Please read carefully, about the activity instructions. Instructions: Read Chapter 2 : The Ongoing Struggle for...

Please read the questions Question: Please describe your thoughts concerning in this Chapter 5. Key Points 5 . In the United States the number of bilinguals has steadily increased but monolingualism...

Reread the Management Focus feature on U.S. Magnesium Seeks Protection (chapter 7). Who gains most from the anti-dumping duties levied by the United States on imports of magnesium from China and...

The National Food Processing Company is considering investing in plant modernization and plant expansion. These proposed projects would be completed in two years, with varying requirements of money...

Loading is the final step of physically moving data from a source to a destination in the data warehouse process a true or false

Which of the following actions is consistent with social responsibility and is not necessarily inconsistent with stockholder wealth maximization? a. Making a large corporate donation to the local...

c. What are common stereotypes about the group? How did these stereotypes originate?

8. Why do some people in the United States prefer not to talk about history? What views of social reality and intercultural communication does this attitude encourage?

1. Cultural-Group History. This exercise can be done by individual students or in groups. Choose a cultural group in the United States that is unfamiliar to you. Study the history of this group, and...