Abstract Group Participation
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Transcript of Abstract Group Participation
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Abstract Group Participation
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Jooyoung Kim 2
Hypothesis
There is a direct relationship to the amount of sleep a student gets and their grade point average
The more sleep one gets the better their G.P.A will be.
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Jooyoung Kim 3
Issues…
Multiple factors conflicting with results… - Sleep Hours… naps or night? - Moral Issue… lying about GPA? - GPA… accumulative or last semester
GPA? - When Hours Slept… last year or current
year? - Majors… degree of difficulties
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Jooyoung Kim 4
Overview of Results
Students who slept… - 2.0 to 5.5 hrs had GPA between 2.51 to 3.32 - 6 hours to 8.5 hrs had GPA between 3.2 to 3.31 - for 9-10.5 hours had GPA between 3.65 and 4.0
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Jooyoung Kim 5
Exceptions to Results
People who average… - 2 hours of sleep had a G.P.A of 3.8 - 3 hours of sleep had a G.P.A of 3.33- 9 hours of sleep had a G.P.A of 3.04
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Introduction
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Ethan Binder 7
Why Sleep At All?
During sleep your body recharges. Your brain produces the special biochemical and physiological changes that restore and recharge your body for the next day.
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Ethan Binder 8
Poor Sleep can lead to:
Increased tension Irritability Depression Confusion Lower life satisfaction
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Ethan Binder 9
Is Sleeping Consistency Important? You Bet’cha
Students that sleep 8 hours nightly but shift their sleep-wake cycle by 2 hours experience increased feelings of depression and difficulty concentrating
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Ethan Binder 10
Other Studies
Show that students don’t always connect poor sleep with academics.
External sources get blamed, “I don’t know why I bombed that test, I studied all night”
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Ethan Binder 11
REM Sleep
There have been reports that students who demonstrated a significant increase in REM sleep following an intensive learning period performed significantly better on examinations.
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Ethan Binder 12
How Much Do You Know about Sleep? When Asleep, your
brain is at Rest? (True or False)
False
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Ethan Binder 13
How Much Do You Know about Sleep? Resting in bed is the
same as sleeping? (True or False)
False
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Ethan Binder 14
More Questions (Yeah)
Studying extra late at night will help you do better on a test. (true or false
False. When you are sleep deprived you memory’s affected and you’ll have more trouble recalling recently learned information than if you had a good night’s sleep.
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Ethan Binder 15
On to the next presenter
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Experimental Procedures Results
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Elika Sakazaki 17
Experimental Procedures
WARNING!…you can’t just ask anyone
Conditions– Undergraduate
students
– Students who do not work
– Full-time students (12+ units per semester)
Objective1. 4 group members;
each submitting results from 50 different interviews.
2. Average amount of sleep in hours per night and current GPA were obtained from each interview.
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Elika Sakazaki 18
Experimental Procedures
3. Data to be plotted on a spreadsheet and calibrated in order of increasing hours of sleep along with its GPA.
(Example on right).
Average Hours
GPA
20.8
2.93
2.5 3.8
3 2.6
3.5
3.6
2.4
3.98
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Elika Sakazaki 19
Experimental Procedures
4. Find the Average GPA for similar average hours of sleep.
(Example on right)
Average Hours
GPA
2 1.865
2.5 3.8
3 2.6
3.3263.5
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Elika Sakazaki 20
Experimental Procedures
5. Graph data with Average hours of sleep on the x-axis (independent variable) and Average GPA on the y-axis (dependent variable)
(Example on right)
Average Hours of sleep vs. Average GPA
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
0 2 4 6 8 10 12
Average sleep (Hours)
Avera
ge GP
A (4.0
scale
)
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Elika Sakazaki 21
Experimental Procedures
6. Add TREND-LINE.
– Right click on data point and add trend-line.
– Used to help interpret data.
(Example on right)
Average Hours of sleep vs. Average GPA
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
0 2 4 6 8 10 12
Average sleep (Hours)
Avera
ge GP
A (4.0
scale
)
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Elika Sakazaki 22
Results
The trend-line shows a gradual increase in GPA as a person increases their average amount of sleep per night.
Students who slept: 2.0 to 5.5 hrs had an average
GPA between 2.51 to 3.32 6 to 8.5 hrs had GPA between
3.2 to 3.31 9 to 10.5 hours had GPA
between 3.65 to 4.0
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Getting tired yet?
On to next presenter…
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Discussion
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Marilyn Green 25
In Conclusion...
What we wanted to do:- find relationship between GPA and avg. hours of sleep per night
How we did it:Questioned 200 U of A students who were…
- undergraduates- without jobs- full time students (at least 12 units)
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Marilyn Green 26
What we found:
Some what positive linear graph of average hours of sleep vs. average GPA
values that threw off data -examples: 3.8 GPA student with 2hrs of sleep
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Marilyn Green 27
We neither accept or reject our hypothesis because... Other factors can affect GPA
- students who have children- student’s suffering from depression- student’s suffering from loved one’s death- relationships- student’s who use alcohol or drugs extensively
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Marilyn Green 28
Places for error
Students may have stretched the truth for whatever reason and lied about their actual GPA or amount of sleep
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Marilyn Green 29
Future Experiments
This experiment could be better explored if we:apply it to graduate students because…
they are interested in the field they are studyingmore apt to work harder
address the many other factors that affect GPA
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Marilyn Green 30
References
1. Biology 182 Lab Manual, Kaspari, Vleck, et al, 2002
2. Buboltz, C. Walter, et al, “Sleep Habits and Patterns of College Students: A Preliminary Study.” Journal of American College Health. Vol. 50, No.3.