annotated-Lab%202%20-CHAPTER3
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School
University of Texas, Arlington *
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Course
4323
Subject
Industrial Engineering
Date
Dec 6, 2023
Type
Pages
4
Uploaded by MinisterTurkeyMaster426
Lab #2 -Chapter 3 MOTOR ABILITY
Group Member Names:
1
.
Elijah Victoria
2
.
Kaitlyn Fulghum
3.
Nhi Huynh
Total Points_____/20
The purpose of this class activity is to investigate balance as a motor ability by assessing the
relationship between two types of static balance. The question of interest is, are these two types of
static balance highly related, as predicted by the
general motor ability hypothesis
, or only slightly
(or not) related, as predicted by the
specific motor abilities hypothesis
?
TEXTBOOK READING
– Chapter 3 [pages 46-59]
PROCEDURES
1. The lab activity involves performing two static balance tasks:
A. Stork stand: Stand for as long as possible up to 60 sec on the foot of
the dominant leg
while placing the other foot on the inside of the supporting knee and the hands on the hips. The
score is the time on balance.
(record your score in Table 1)
B. Bass stick stand: Place the ball of one foot
the dominant leg
crosswise on a stick (1” high
x 1” wide). Raise the heel of the foot and raise the other foot off the floor. Stand for as long as
possible. The trial ends when the heel or toes of the balance foot or the other foot touches the
floor. The score is the time on balance.
(record your score in Table 2)
2. One person in your group will perform five (5) trials of each task, alternate the task performed.
Record the results on the data sheet for your group.
RESULTS & DISCUSSION
1. [4 pts] (a) Record in a class spreadsheet (Table 3) the median time on balance for each task for
each group. (b) Calculate a mean and standard deviation for each balance tests (Table1 &Table 2).
(Report your group number and the median time for both tasks for your group to our course
TA,
Ms. Mary Ocampo
during the lab time. She will upload the class spread sheet (Table 3) on the
CANVAS which includes all groups balance score for both tests. Based on Table 3 you can get the
correlation coefficient and complete our lab report.
Your answers for the questions should be
based on the calculation of the class spreadsheet (Table 3).
2. [2 pts] Based on Table 3, calculate a correlation coefficient for the two balance tests (Please see
the instructional slides posted on the CANVAS).
(a) What is the correlation coefficient for the two balance tests? (b) What does this value mean in
terms of the amount of relationship that exists between the two tests?
The correlation between the two balance tests was 0.3220, meaning that there was a moderate
relationship between the two balance tests. Having a good Stork stand may mean that you also
have a good bass stick stand and vice versa.
3. [2 pts] How does your lab’s correlation coefficient compare to the one reported by Drowatzky
and Zuccato in their study that is described in the textbook (p. 50)? First summarize what
Drowatzky and Zuccato found and then compare your results to theirs.
Drowatzky and Zuccato found that just because you are good at one task doesn’t mean that they
will be good at another. Their correlation coefficient was 0.31 which is close to ours of 0.32 both of
our results show that there is not a high correlation between tasks.
4. [2 pts] Discuss the results of this lab in terms of whether they support the general motor ability
hypothesis or the specificity of motor abilities hypothesis. Be specific about which and why the
hypothesis is supported and what that means in terms of our understanding of human motor
abilities.
The lab results support the specificity of motor abilities hypothesis more than the general motor
ability hypothesis. Since our correlation between the two balance tests are only moderate and not
high, we can assume that the relationship between the two balance tests are most likely
independent of one another. The general of motor abilities hypothesis states that all motor abilities
are highly related to one another. Meaning if you are really good at one motor ability you will be
really good at another. However our lab demonstrates that two motor abilities we tested are only
moderately related not highly related, showing that motor abilities are relatively independent.
** Notes:
Please submit your individual lab report (list all group members’ name on the first sheet)
through CANVAS by Tuesday, Sep. 26
th
.
Make sure the following are included in your lab report: the answers of the questions
which should be typed, the group sheet (Table 1 &2), the class spreadsheet (Table 3), and
all calculated results in three Tables.
Table 1:
Stork Stand
Rank (from lowest to
highest)
Trial 1
39.58
3
Trial 2
46.05
5
Trial 3
35.36
1
Trial 4
38.16
2
Trial 5
42.17
4
Mean:
40.26
Median:
39.58
SD:
4.06
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