Lab 8 Activity
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North Georgia Technical College *
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Industrial Engineering
Date
Dec 6, 2023
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docx
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2
Uploaded by holcombmeredith
Lab 8 Activity
Bystander effect
: We will discuss the experimental design of bystander effect for your next
project:
We will use ? x ? factorial design
What are your hypotheses in terms of factorial design?
What are your independent variables?
What are your dependent variables and how to measure them?
Setting: The way to create emergency situation (how to do that). Location and/or timing (where
and when).
Question 1:
For this problem, please download and use Lab activity 8 question 1 data.
Test whether there are differences in university grade point average (GPA) for different majors.
Compute the means and standard deviations for each group. Conduct comparisons to test
whether computer majors are different from engineering majors and computer majors from
other sciences.
A.
Please provide hypotheses including HO and H1 by using symbols.
H0: There is not a significant difference between grade point average and difference
major choices.
H1: There is a significant difference between grade point average and major choice.
B.
Write a short section in APA format indicating the main effect and results of post-hoc
test to reveal the group difference including descriptive summary, main effect and post-
hoc test (Bonfferoni test).
Example:
A one-way ANOVA analysis revealed a significant main effect of stress treatment (F
(df1, df2)
=
12.56, p<0.05). Further post-hoc test revealed that chronic stressors exposure induced more
anxiety-like behavioral response compared to the control group (control (mean +/- S.D.): XX.XX
+/- X.XX, chronic stress group: XX.XX +/- X.XX; p<0.05 followed by LSD test). No group difference
was obtained between control and acute stressors exposed animals (XX.XX +/-X.XX; p>0.05 after
LSD test).
A.
Please indicate HO and H1 by using symbols.
H0: There is not a significant difference between exposure and anxiety induced behavior
H1: There is a significant difference between exposure and anxiety induced behavior.
B.
Test whether there is any difference in university grade point average (GPA) for gender.
Please write a short section in APA format.
Question 2
: For this question, please download and use Lab activity 8 question 2 data as the
excel file.
Dr. Alex Sun is interested in the nicotine effect on locomotor behavior in mice. He decided to
use 10 mice and injected different doses of nicotine, 0, 0.1, 0.5, and 1 mg/kg nicotine
respectively, in 4 consecutive days. The locomotor was monitored by computerized chamber
and program. He wants to know whether nicotine can induce the reduction in the behavior.
A.
Please help Dr. Alex Sun to describe the H0 and H1 by your own description without
using symbols.
H0:There is not a significant difference between the locomotor activity of mice and
nicotine effect.
H1: There is a significant difference between the locomotor activity of mice and the
B.
Do analysis for the different dose effect on the locomotor behavior with LSD post hoc
test. Please write a short section for the result in APA format.
C.
For the experimental design, do you think whether there is any problems? If so, please
describe!
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