Question: A researcher conducts a study to determine whether smiling affects students' interest in the course material. In her 8am Physiological Psychology course, she never smiles

A researcher conducts a study to determine whether smiling affects students' interest in the course material. In her 8am Physiological Psychology course, she never smiles while teaching. In her 9am Physiological Psychology course, she smiles often while teaching. At the end of the semester, she gives students a questionnaire to assess the extent to which students liked the course material. The results showed that the 9am class liked the course material more than the 8am class. Use this scenario to respond to each of the following questions.

A. What is the independent variable? Name the IV and the levels of the IV.

B. What is the dependent variable?

C. What is the confound variable?

D. How might the confound variable influence the results of the study in an undesirable way?

E. How could the confound be fixed?

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!

Assessment & Evaluation in Higher Education Vol. 29, No. 1, February 2004 Academic procrastination and statistics anxiety Anthony JOnwuegbuzieDepartment of Educational Measurement and Research,...

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

Comprehensive Doctoral Review Examination Presented in Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy By Sally A. Camacho English as a Second Language School of Education...

Please read the question Question : What are "spaced practice", "varied practice", and "interleaved practice"? Give a definition for each. Then give an example of each from your own experience as a...

I need help with my statistics questions. they are attached below with all the information. THIS IS NOT AN EXAM OR QUIZ Suppose a study was conducted to compare the sleep deprivation rates of...

ISSUES IN ACCOUNTING EDUCATION Vol. 26, No. 3 2011 pp. 521-545 American Accounting Association DOI: 10.2308/iace-50031 Breach of Data at TJX: An Instructional Case Used to Study COSO and COBIT, with...

Read Chapters 1,2,4,7 and Write a 800 - 1000 word Reflection Paper Grading : ?Thoughtfulness?Reactions,personal experiences,criticisms, etc. ?Application to your futureprofessional(and personal)life...

Solve the preceding problem for a cantilever beam with data as follows: b = 4 in., h = 9 in., L = 10.0 ft, P = 325 lb, and = 45.

Assume the same facts as in Problem 8-56, except in addition to the other itemized deductions Michelle and Mark suffer a $4,500 deductible personal casualty loss (after limitations). In problem 8-56...

7 . 2 Amber McClain. Amber McClain, the currency speculator we met in the chapter, sells eight June futures contracts for 5 0 0 , 0 0 0 pesos at the closing price quoted in Exhibit 7 . 1 . What is...

Sketch or graph the given region and its image for the following mapping: 1) |z| <= 1/2, | arg z | <= pi/8, w = z^2 2) |z| <= 1/2, Im z > 0, w = 1/z 3) 1/2 <= x <= 1, w = z^2 4) |z|...

Let denote the annual premium for a whole life contingent contract of benefit amount 10,000 issued to (30), and let L() denote the present value of loss random variable for this con- tract. The...

()-Berkeleyamide D is a natural product from Penicillium rubrum bacteria which is a micromolar inhibitor of the potential drug target MMP-3. This following synthetic sequence is adapted from a...

Lumber, Inc. is a wholesale distributor of auto parts, such as bulbs, brakes, upholstery, and related items. Customers receive an updated catalog annually and place orders over the phone. When a...

Find the leading order term in the asymptotic expansion of I(A) = So e- (1- cos t) dt as A 0o for A > 0. Hint: make the change of variable t %3D = 8.

QUESTION 6 The Street Project This project involves the tear-out and replacement of 1,500 linear feet of residential road. The activities and rates are listed in the following table: Activity Total...

What is the content-level meaning?

2. Interview a professional in your fi eld of choice. Identify the communication skills that he or she thinks are most important for success. Which of those skills do you already have? Which skills...

To what extent are liking, responsiveness, and power expressed on the relationship level of meaning?