• Home
  • Textbooks
  • Research Methods for Business: A Skill Building Approach
  • EXPERIMENTAL DESIGNS

Research Methods for Business: A Skill Building Approach

Uma Sekaran

Chapter 7

EXPERIMENTAL DESIGNS - all with Video Answers

Educators


Chapter Questions

01:21

Problem 1

What are the differences between causal and correlational studies?

Harsh Gadhiya
Harsh Gadhiya
Numerade Educator
02:01

Problem 2

In what ways do lab experiments differ from field experiments?

Ramesh Singh
Ramesh Singh
Numerade Educator
00:56

Problem 3

Define the terms control and manipulation. Describe a possible lab experimen where you would need to control a variable. Include also a possible variable ove: which you would have no control but which could affect your experiment.

Keenan Mintz
Keenan Mintz
University of Miami

Problem 4

Explain the possible ways in which you can control "nuisance" variables.

Check back soon!

Problem 5

What is internal validity and what are the threats it stands exposed to?

Check back soon!

Problem 6

Explain the concept of "trade-off between internal validity and external validity."

Check back soon!
01:02

Problem 7

Explain fully how you would demonstrate to machine operators and convince ther through research that thorough knowledge of the operating policies and procedure: (by reading the manual) would eliminate almost all "on-the-job" accidents.

Mayukh Banik
Mayukh Banik
Numerade Educator
02:51

Problem 8

"If a control group is a part of an experimental design, one need not worry abou controlling other exogenous variables." Discuss this statement.

Shannon Merkle
Shannon Merkle
Numerade Educator

Problem 9

A researcher wants to set up a lab experiment to test the effects of different kinds o leadership styles on followers' attitudes. The three particular kinds of leadership style: she is interested in are autocratic, democratic, and participative. You are asked tc enlist some students to play the part of followers. What cover story would you give the participants?

Check back soon!
View

Problem 10

Comment on the following statement: "Because the external validity of lab experi. ments is not usually high, they are useless for investigating cause and effect relation. ships in organizations."

Rashmi Sinha
Rashmi Sinha
Numerade Educator
02:12

Problem 11

"Covariance-that is, two variables varying together either positively or negativelyand control are integral aspects of experimental designs." Discuss.

Christopher Stanley
Christopher Stanley
Numerade Educator

Problem 12

"The Solomon four-group design is the answer to all our research questions pertain. ing to cause-and-effect relations because it guards against all the threats to interna validity." Comment.

Check back soon!
10:14

Problem 13

Below is an adapted note from Business Week published some time ago. After read. ing it, apply what you have learned in this chapter, and design a study after sketch. ing the theoretical framework.
The Vital Role of Self-Esteem
Why do some people earn more than others? Economists focused on the importance of education, basic skills, and work experience-what they called human capital_on increased productivity, and said these were reflected in greater earning power. Researchers also found that self-esteem was instrumental in acquiring human capital.

Srikar Katta
Srikar Katta
Numerade Educator
02:53

Problem 14

Design a study to examine the following situation.
An organization would like to introduce one of two types of new manufacturing processes to increase the productivity of workers, and both involve heavy investment in expensive technology. The company wants to test the efficacy of each process in one of its small plants.

John Barone
John Barone
Numerade Educator