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Unveiling Sleep-Alertness Link: Dr. Tabor's College Student Study
Chapter , Problem 2(choose chapter or problem)
Dr. Tabor wanted to investigate the relationship between sleep and levels of alertness during a class for American university students. She gave surveys to 150 college freshmen in her introduction to psychology course, asking them to report how many hours they slept each night during a two-week period. Dr. Tabor also had the participants rate their level of alertness on a scale of 1 to 10, with 10 being the most alert each day at the end of class. Dr. Tabor compared the average amount of sleep reported by each participant along with their average score on the alertness scale on a graph to examine the data. The resulting correlation coefficient for Dr. Tabor’s data was +0.89. Define each of the following terms and explain how each concept might apply to Dr. Tabor’s research.
• Random sample
• Scatterplot
• Wording effects
• Positive correlation
• Operational definition
Questions & Answers
QUESTION:
Dr. Tabor wanted to investigate the relationship between sleep and levels of alertness during a class for American university students. She gave surveys to 150 college freshmen in her introduction to psychology course, asking them to report how many hours they slept each night during a two-week period. Dr. Tabor also had the participants rate their level of alertness on a scale of 1 to 10, with 10 being the most alert each day at the end of class. Dr. Tabor compared the average amount of sleep reported by each participant along with their average score on the alertness scale on a graph to examine the data. The resulting correlation coefficient for Dr. Tabor’s data was +0.89. Define each of the following terms and explain how each concept might apply to Dr. Tabor’s research.
• Random sample
• Scatterplot
• Wording effects
• Positive correlation
• Operational definition
ANSWER:Step 1 of 5
1. Random sample
A random sample is a sample that fairly represents a population as each person has a fairly equal chance to be included in the study. This approach minimizes bias, making the study results more reliable and applicable to a larger group.
Here, the population to be studied was “American University Students”. The sample selected was “150 college freshmen in her introduction to psychology course”. This does not represent a perfect random sample.
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Unveiling Sleep-Alertness Link: Dr. Tabor's College Student Study
Want To Learn More? To watch the entire video and ALL of the videos in the series:
Explore the fascinating insights from Dr. Tabor's groundbreaking research into the correlation between sleep and alertness among college students. Discover the importance of random sampling, data visualization using scatterplots, survey wording effects, and operational definitions in ensuring unbiased and reliable study results. Dive into the world of psychology research methods in this informative video.