Laura Final Ppt CompStat

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The document summarizes an experiment that tested the effects of energy levels on memory capabilities. Participants were randomly assigned to nap, control, or coffee groups. Their memory was tested at baseline, immediately after treatment, and 30 minutes later. Statistically, the coffee group performed significantly better than the control group on the immediate post-test, indicating drinking coffee may temporarily improve memory compared to no intervention. However, more significant results were limited by the memory test, caffeine effects, and simulation design. Future studies are suggested to address limitations.

EFFECTS OF ENERGY ON MEMORY
CAPABILITIES
LAURA MOCKENSTURM

TABLE OF CONTENTS
1. Title Slide
2. Table of Contents
3. Introduction
4. Data Simulation: The Island
5. Participants and Recruitment
6. Running The Experiment
7. Null Hypothesis & Alternative Hypothesis
8. Theoretical Background: Normality
9. Test for Normality
10. Statistical Procedures: Kruscal-Wallis
11. Results: Significant Data
12. Limitations: Why Is There Not More Significance?
13. Conclusion
14. Future Studies

INTRODUCTION
• University of Minnesota
• Simulation possibilities
• Effects of Energy Level on Memory
Capabilities
• Nap Group
• Control Group
• Coffee Group

PARTICIPANTS AND RECRUITMENT
• Randomize Island Population
• Request Consent
• Replace Those who Denied
Consent
• Randomize into Treatment Groups
• Nap Group
• Control Group
• Coffee Group

RUNNING THE EXPERIMENT
• Real Time
• Test Memory
• Treatment
• Test Memory
• Wait 30 Minutes
• Test Memory

NULL HYPOTHESIS & ALTERNATIVE HYPOTHESIS
• Null: M1 = M2 = M3
• Difference 1: Memory Immediately After — Baseline Memory
• Difference 2: Memory After 30 minutes — Memory Immediately After
• Difference 3: Memory After 30 minutes — Baseline Memory
• Alternative: At least one of the groups means is different

THEORETICAL BACKGROUND:
NORMALITY
• Compare means One-Way ANOVA Normal
Difference 1 (Memory Immediately After — Baseline
Memory) was approaching significance (p=.0839) for
alpha=.05

STATISTICAL PROCEDURES: KRUSCAL-WALLIS
• Not Normal Kruscal-Wallis Test to compare means
• Compared 3 differences, no significance
• Difference 1 approaching .05 significance (p=.0927)
• Compared 2 treatment groups at a time

RESULTS: SIGNIFICANT DATA
• Out of the 15 tests run, 1 significant result
• Comparing the baseline data to the data
collected immediately after intervention
(Difference 1)
• The coffee group (group 3) improved
significantly in the memory test compared
to the control group

LIMITATIONS: WHY IS THERE NOT MORE SIGNIFICANCE?
• Memory Test Type
• Coffee Caffeine Peak and Half-Life
• Intention to Treat
• Simulation
• Population
• Program

CONCLUSION
• Normal assumption
• Test for normality, Kruscal-Wallis
• Using Minnesota’s Island simulation, drinking coffee temporarily improves memory compared
to control group
• Limitations

FUTURE STUDIES
Memorize, nap, test memory
vs. Control
Previous literature
Longer wait after drinking coffee
Account for caffeine peak

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Laura Final Ppt CompStat

1. EFFECTS OF ENERGY ON MEMORY CAPABILITIES LAURA MOCKENSTURM

2. TABLE OF CONTENTS 1. Title Slide 2. Table of Contents 3. Introduction 4. Data Simulation: The Island 5. Participants and Recruitment 6. Running The Experiment 7. Null Hypothesis & Alternative Hypothesis 8. Theoretical Background: Normality 9. Test for Normality 10. Statistical Procedures: Kruscal-Wallis 11. Results: Significant Data 12. Limitations: Why Is There Not More Significance? 13. Conclusion 14. Future Studies

3. INTRODUCTION • University of Minnesota • Simulation possibilities • Effects of Energy Level on Memory Capabilities • Nap Group • Control Group • Coffee Group

4. DATA SIMULATION: THE ISLAND

5. PARTICIPANTS AND RECRUITMENT • Randomize Island Population • Request Consent • Replace Those who Denied Consent • Randomize into Treatment Groups • Nap Group • Control Group • Coffee Group

6. RUNNING THE EXPERIMENT • Real Time • Test Memory • Treatment • Test Memory • Wait 30 Minutes • Test Memory

7. NULL HYPOTHESIS & ALTERNATIVE HYPOTHESIS • Null: M1 = M2 = M3 • Difference 1: Memory Immediately After — Baseline Memory • Difference 2: Memory After 30 minutes — Memory Immediately After • Difference 3: Memory After 30 minutes — Baseline Memory • Alternative: At least one of the groups means is different

8. THEORETICAL BACKGROUND: NORMALITY • Compare means One-Way ANOVA Normal Difference 1 (Memory Immediately After — Baseline Memory) was approaching significance (p=.0839) for alpha=.05

9. TEST FOR NORMALITY

10. STATISTICAL PROCEDURES: KRUSCAL-WALLIS • Not Normal Kruscal-Wallis Test to compare means • Compared 3 differences, no significance • Difference 1 approaching .05 significance (p=.0927) • Compared 2 treatment groups at a time

11. RESULTS: SIGNIFICANT DATA • Out of the 15 tests run, 1 significant result • Comparing the baseline data to the data collected immediately after intervention (Difference 1) • The coffee group (group 3) improved significantly in the memory test compared to the control group

12. LIMITATIONS: WHY IS THERE NOT MORE SIGNIFICANCE? • Memory Test Type • Coffee Caffeine Peak and Half-Life • Intention to Treat • Simulation • Population • Program

13. CONCLUSION • Normal assumption • Test for normality, Kruscal-Wallis • Using Minnesota’s Island simulation, drinking coffee temporarily improves memory compared to control group • Limitations

14. FUTURE STUDIES Memorize, nap, test memory vs. Control Previous literature Longer wait after drinking coffee Account for caffeine peak

Laura Final Ppt CompStat

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