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The Effects of Marijuana and Alcohol on Academic Performance
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Marijuana
• An illegal mind altering drug that can be smoked or eaten. It has been proven that after use one will experience short term memory loss and distorted thinking and problem solving
• No large scale, valid study has ever proven marijuana has negative long term effects on the brain
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Alcohol
• Also classified as a drug• Alcohol depresses the central nervous system
and causes various effects based on the amount consumed
• After the short term effects wear off, it has been proven that there is damage to parts of the brain associated with physical conditioning and learning
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“Super High Me”Sober High
Psychic ESP Test 1/25 7/25
The S.A.T. 980/1600 1030/1600Mini-mental Status Review (Normal = 22+) 27/29 24/29
Lung Capacity 92% 89%
Sperm Count (20 is normal) 21 Millions/mL 32 Millions/mL
Weight Change -2 lbs. +8 lbs
• S.A.T. score increased by 5%
• It was noted by the examiners that his verbal skills had decreased, but his mathematical skill had significantly increases
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Survey Of Loyola University
• Weak negative correlation between marijuana consumed per month and current GPA (r= -0.27)
• Weak negative correlation between alcohol consumed per month and current GPA (r= -0.31)
• Positive correlation between marijuana consumed and classes skipped (r=0.328)
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Hypothesis
• Weak negative correlation between the frequencies of drinking and smoking and students averages, math and English marks
• Students who drink or smoke will feel a decrease in initiative and a significant relief of stress.
• Students who smoke or drink will be involved in the same amount of extracurricular activities, but will skip more classes in a month.
• There is no significant difference between the effects of alcohol on academic performance, and the effects of marijuana
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• 91% of grade 12 students drink alcohol
Basic Statistics
• 74% of grade 12 students smoke marijuana
• 26% of students stated they drink daily
• 15% of students stated they smoke daily
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Averages
Alcohol (r= -0.219) Marijuana (r= -0.196)
0 0.5 1 1.5 2 2.5 3 3.50
20
40
60
80
100
120
AverageLinear (Average)
Frequency of Drinking(0-never, 1-special occasions, 2-weekends, 3- daily)
Aver
ages
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English Marks
Alcohol (r= -0.32) Marijuana (r= -0.323)
0 0.5 1 1.5 2 2.5 3 3.50
20
40
60
80
100
120
English MarkLinear (English Mark)
Frequency of Drinking(0-never, 1-special occasions, 2-weekends, 3- daily)
Engl
ish G
rade
0 0.5 1 1.5 2 2.5 3 3.50
20
40
60
80
100
120
English MarkLinear (English Mark)
Frequency of Smoking(0-never, 1-special occasions, 2-weekends, 3- daily)
Engl
ish G
rade
s
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Math Marks
Alcohol (r= -0.311) Marijuana (r= -0.127)
0 0.5 1 1.5 2 2.5 3 3.50
20
40
60
80
100
120
Math MarkLinear (Math Mark)
Frequency of Drinking(0-never, 1-special occasions, 2-weekends, 3- daily)
Mat
h Gr
ades
0 0.5 1 1.5 2 2.5 3 3.50
20
40
60
80
100
120
Math MarkLinear (Math Mark)
Frequency of Smoking(0-never, 1-special occasions, 2-weekends, 3- daily)
Mat
h Gr
ades
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Classes Skipped in a Month
Alcohol (r= 0.54) Marijuana (r= 0.518)
0 0.5 1 1.5 2 2.5 3 3.50
2
4
6
8
10
12
Classes skipped in a monthLinear (Classes skipped in a month)
Frequency of Drinking
# of
Cla
sses
skip
ped
in a
mon
th
0 0.5 1 1.5 2 2.5 3 3.50
2
4
6
8
10
12
Classes skipped in a monthLinear (Classes skipped in a month)
Frequency of Smoking
# of
clas
ses m
issed
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Hours Spent in Extra Curricular Activities Compared to Frequency of Smoking (r= 0.46)
0 0.5 1 1.5 2 2.5 3 3.50
1
2
3
4
5
6
7
8
Hours spent in extracurricularsLinear (Hours spent in extracurriculars)
Frequency of Smoking(0- never, 1-Special occasions, 2- Weekends, 3- Daily)
Hour
s spe
nt in
ext
racu
rricu
lars
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Initiative
Alcohol (r= 0.39) Marijuana (r= 0.35)
0.5 1 1.5 2 2.5 3 3.50
2
4
6
8
10
12
InitiativeLinear (Initiative)
Frequency of Smoking
Initi
ative
Leve
ls
0.5 1 1.5 2 2.5 3 3.50
2
4
6
8
10
12
Series1Linear (Series1)
Frequency of Alcohol Consumption
Intia
tive
Leve
ls
(Scale of 1 to 10, 1 being significantly increases initiative and 10 being significantly decreases initiative)
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Conclusions
• The more one smokes or drinks the lower their marks tend to be
• The more one smokes the more hours they tend to be spend in extracurricular activities
• The more one smokes or drinks, the more classes they tend to skip in a month
• The more one smokes or drinks the more it decreases their initiative
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Alcohol Marijuana
Average R= -0.219 R= -0.196
English R= -0.32 R= -0.323
Math R= -0.311 R= -0.127
Classes Skipped R= 0.54 R= 0.518
Extracurricular R= -0.17 R= 0.46
Initiative R= 0.39 R= 0.35
Stress Relief R= 0.33 R= -0.09
Alcohol had a more significant negative impact on averages, math marks, classes skipped, and initiative