Research Methods for the Behavioral Sciences (MindTap Course List)
5th Edition
ISBN: 9781305104136
Author: Frederick J Gravetter, Lori-Ann B. Forzano
Publisher: Wadsworth Publishing
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Textbook Question
Chapter 3, Problem 1EA
Select a subject and use a full-text database such as PsycARTICLES to locate an empirical journal article that reports the results of a research study examining your subject. Specifically, find an article in which the researchers obtained a sample of participants and then used some form of measurement. Once you have found your article, answer each of the following questions.
- What was measured and how was it measured? (If multiple variables were measured, select one.)
- Was the variable measured directly (like height or weight), or did the research use an operational definition to measure a hypothetical construct such as motivation?
- If an operational definition was used, what was the operational definition?
- What scale of measurement was used (nominal, ordinal, interval, or ratio)?
- Did the researchers use a physiological, a behavioral, or a self-report measure?
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In this problem, we consider a 3-period stock market model with evolution given in Fig. 1 below.
Each period corresponds to one year. The interest rate is r = 0%.
16
22
28
12
16
12
8
4
2
time
Figure 1: Stock evolution for Problem 1.
(a) A colleague notices that in the model above, a movement up-down leads to the same value
as a movement down-up. He concludes that the model is a CRR model. Is your colleague
correct? (Explain your answer.)
(b) We consider a European put with strike price K = 10 and expiration T = 3 years. Find
the price of this option at time 0. Provide the replicating portfolio for the first period.
(c) In addition to the call above, we also consider a European call with strike price K = 10
and expiration T = 3 years. Which one has the highest price? (It is not necessary to
provide the price of the call.)
(d) We now assume a yearly interest rate r = 25%. We consider a Bermudan put option with
strike price K = 10. It works like a standard put, but you can exercise it…
In this problem, we consider a 2-period stock market model with evolution given in Fig. 1 below.
Each period corresponds to one year (At = 1). The yearly interest rate is r = 1/3 = 33%. This
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15
9
10
6
4
time
Figure 1: Stock evolution for Problem 1.
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(b) We consider a European put with strike price K
the price of this option at time 0.
==
16 and expiration T = 2 years. Find
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sible position.
(d) You find this option available on the market for $2. What do you do? (Short answer.)
(e) We consider an American put with strike price K
= 16 and expiration T
=
2 years. Find
the price of this option at time 0 and describe the optimal exercising strategy.
(f) We consider an American call with strike price K ○ = 16 and expiration T = 2 years. Find
the price of this option at time 0 and describe…
Chapter 3 Solutions
Research Methods for the Behavioral Sciences (MindTap Course List)
Ch. 3.2 - Define a construct and explain the role that...Ch. 3.2 - Define an operational definition and explain the...Ch. 3.3 - Define a positive relationship and a negative...Ch. 3.3 - Define the validity of measurement and explain why...Ch. 3.3 - Define the reliability of measurement and explain...Ch. 3.4 - Compare and contrast the four scales of...Ch. 3.5 - Identify the three modalities of measurement and...Ch. 3.6 - Define a ceiling effect and a floor effect and...Ch. 3.6 - Define an artifact and explain how examples of...Ch. 3 - In addition to the key words, you should also be...
Ch. 3 - Some variables, such as height, can be measured...Ch. 3 - Briefly explain what an operational definition is...Ch. 3 - A researcher evaluates a new cholesterol...Ch. 3 - A clinical researcher has developed a new test for...Ch. 3 - Suppose that a social scientist has developed a...Ch. 3 - Explain how inter-rater reliability is...Ch. 3 - A researcher claims that intelligence can be...Ch. 3 - Identify the scale of measurement that allows each...Ch. 3 - What is the primary advantage of self-report...Ch. 3 - Describe the strengths and weaknesses of...Ch. 3 - What is a ceiling effect, and how can it be a...Ch. 3 - What are demand characteristics, and how do they...Ch. 3 - Describe how the concept of participant reactivity...Ch. 3 - Select a subject and use a full-text database such...Ch. 3 - Select one construct from the following list:...Ch. 3 - For each of the following operational definitions,...
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