Reference no: EM13923475
Quasi-Experimental Designs
Part I - Answer the following questions:
1. Jackson (2012), even-numbered chapter exercises, p 360.
2. Describe the advantages and disadvantages of quasi-experiments? What is the fundamental weakness of a quasi-experimental design? Why is it a weakness? Does its weakness always matter?
3. If you randomly assign participants to groups, can you assume the groups are equivalent at the beginning of the study? At the end? Why or why not? If you cannot assume equivalence at either end, what can you do? Please explain.
4. Explain and give examples of how the particular outcomes of a study can suggest if a particular threat is likely to have been present.
5. Describe each of the following types of designs, explain its logic, and why the design does or does not address the selection threats discussed in Chapter 7 of Trochim and Donnelly (2006):
a. Non-equivalent control group pretest only
b. Non-equivalent control group pretest/posttest
c. Cross-sectional
d. Regression-Discontinuity
6. Why are quasi-experimental designs used more often than experimental designs?
7. One conclusion you might reach (hint) after completing the readings for this assignment is that there are no bad designs, only bad design choices (and implementations). State a research question for which a single-group post-test only design can yield relatively unambiguous findings.
Part II - Answer the following questions:
1. What research question(s) does the study address?
2. What is Goldberg's rationale for the study? Was the study designed to contribute to theory? Do the results of the study contribute to theory? For both questions: If so, how? If not, why not?
3. What constructs does the study address? How are they operationalized?
4. What are the independent and dependent variables in the study?
5. Name the type of design the researchers used.
6. What internal and external validity threats did the researchers address in their design? How did they address them? Are there threats they did not address? If so how does the failure to address the threats affect the researchers' interpretations of their findings? Are Goldberg's conclusions convincing? Why or why not?
|
Information regarding selling prices and costs
: In this case, you are provided information regarding selling prices and costs of several products offered by Mendel Paper Company. In addition, management has concerns about sales mix and rising costs. Address the questions (1-5) at the end of th..
|
|
Perform a principal component analysis on the dataset
: Perform a principal component analysis on the dataset you have generated - what is the total variability in the dataset and what is the percent of the total variability explained by the first three components?
|
|
Calculate the expiration date payoffs and profits
: Using the same potential stock prices as in Part a, calculate the expiration date payoffs and profits (net of the initial purchase price) for the following positions: (1) buy one XYZ put option, and (2) short one XYZ put option.
|
|
Advantages and disadvantages of the devil advocate
: Using the materials in the text, what are the advantages and disadvantages of the devil's advocate, dialectical inquiry, and consensus approaches to making strategic choices
|
|
Problem regarding the quasi-experimental designs
: 1. Jackson (2012), even-numbered chapter exercises, p 360. 2. Describe the advantages and disadvantages of quasi-experiments? What is the fundamental weakness of a quasi-experimental design? Why is it a weakness? Does its weakness always matter?
|
|
Negative managerial scenario that the regional manager
: Exercise 1-9) Zoya Arbiser, regional manager of Gold Medal Sports Shops, is reviewing the results of 15 stores in her region. Store managers are moved annually. Each store manager's income is very dependent on the direct contribution margin of t..
|
|
Demonstrate arbitrage trade to take advantage of mispricing
: Is this differential satisfied by current market prices? If not, demonstrate an arbitrage trade to take advantage of the mispricing.
|
|
What is the probability that all three cards are clubs?
: Suppose that a histogram of a data set is approximately symmetric and "bell shaped". Approximately what percent of the observations are within two standard deviations of the mean?
|
|
Overhead cost data for the auerbach enterprises
: In this case, you are provided the overhead cost data for the Auerbach Enterprises. Management needs advice in determining how to allocate these costs utilizing a job order costing system either department-wide or company-wide.
|