Question: Subjects were randomly assigned to two groups, and one group was given an herb and the other a placebo. After 6 months, the numbers of

Subjects were randomly assigned to two groups, and one group was given an herb and the other a placebo. After 6 months, the numbers of respiratory tract infections each group had were compared.

Questions:

a) Is this study experimental or observational? Explain your answer.

b) Identify the independent variable.

c) Identify the dependent variable.

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!

Identify each study as being either observational or experimental. a. Subjects were randomly assigned to two groups, and one group was given an herb and the other group a placebo. After 6 months, the...

Subjects were randomly assigned to two groups, and one group was given an herb and the other group a placebo. After 6 months, the numbers of respiratory tract infections each group had were compared....

Identify the independent variable(s) and the dependent variable for each of the studies in Exercise 17. Exercise 17 Identify each study as being either observational or experimental. a. Subjects were...

Section 1-4 For Exercises 45-48, identify each study as being either observational or experimental. 45.Subjects were randomly assigned to two groups, and one group was given an herb and the other...

11) A sample tested the claim that heights oi men and heights ot women have diiterence variances, with s = 7.41435 cm for women and 7.15449 cm for men. The sample sizes are HI = 145 and n2 = 151....

K A pharmaceutical company wants to test the effectiveness of a new allergy drug The company identifies 250 females 30 35 years old who suffer from severe allergies The subjects are randomly assigned...

Math martha gomez Quiz: Chapter 1 Quiz Question 8 of 10 This quiz: 50 point(s) possible This question: 5 point(s) possible Submit quiz A pharmaceutical company wants to test the effectiveness of a...

A company wants to test the effectiveness of a new acne cream. The company recruits 500 girls ages 13 to 17 who have acne. The subjects are randomly assigned into two groups. One group is given the...

1-Identify each study as observational or experimental. a. A researcher stood at a busy intersection to see if the color of an automobile is related to running red lights. b. Subjects were randomly...

Determine the cumulative distribution function for the random variable in Exercise 3-22.

Discuss the strategic importance of information.

Question 1 6 ( 1 point ) Finance is The study of investment management The study of the capital market and its many players The study of the stock exchange

Measurements are made at two different times. Find the absolute change and then find the percentage change. Round answers to the nearest tenth if necessary. The value of Annas house increased from...

Given the following information for Goode Company: May 1 Beginning inventory 18 units @ $4 per unit May 7 Purchase 12 units @ $5 per unit May 10 Sale 14 units May 17 Purchase 10 units @ $6 per unit...

More than half of all residential water connections in Britain are not metered. Residential customers pay a flat fee regardless of usage. Scottish Water, which supplies water in Scotland, says there...

You are a CPA student who works at a public accounting firm. You are currently on the audit of Happy Sails Inc (HSI). HSI sells custom-designed luxury sailboats that they build from scratch. You have...

In testing controls, the auditor can obtain evidence from the clients information system and analyze it in a tabular or visual form. Your client has controls in place regarding credit limits for...

Critically analyse The planned, processual and multi-perspective approaches to managing change

11. Now consider the different goals you have for your life in the future. See these goals in relation to your core values and your roles. How do goals affect your roles and your values? Development...

Does this future have a sound, an image, a taste or a smell that you can evoke here and now?

2. In this chapter, the reader should reflect on the following concepts: benchmark-ing, competence development, thought dispositions, identity and perception.