
Quiz #1-Online Statistics Fall 24
Authored by Rachel Besing
Biology
University
Used 1+ times

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51 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
The authors' research question "Do risk-takers do better or worse in exams than non-risk-takers?" aims to explore the relationship between which two variables?
Risk-taking and intelligence
Risk-taking and academic performance
Intelligence and academic performance
Personality and academic performance
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
In the context of the research question, what role does the 'Exam Grade' variable play?
It's the independent variable the researchers are manipulating
It's the dependent variable the researchers are measuring
It's a control variable used to eliminate confounding factors
It's an extraneous variable that might influence the results
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
The authors collect data from 42 students, classifying them as low or high risk-takers and obtaining their exam grades. What type of research design is this?
Experimental design
Correlational design
Quasi-experimental design
Observational design
4.
MATCH QUESTION
2 mins • 1 pt
Match the following traps in data interpretation with their descriptions.
Not considering the range of data points
Focusing too much on outliers in the data
Paying excessive attention to extreme values
Overgeneralizing from the sample to the population
Drawing broad conclusions from a small sample
Misinterpreting statistical significance
Incorrectly understanding p-values
Ignoring the variability within the data
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
The authors distinguish between 'descriptive statistics' and 'inferential statistics.' Which of the following is an example of descriptive statistics?
Calculating the mean exam grade for risk-takers
Conducting a t-test to compare the means of two groups
Estimating the population mean from a sample mean
Calculating the confidence interval for a population parameter
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
The concept of 'variability' is central to the text. In the context of the research question, what does variability refer to?
The differences in risk-taking tendencies among students
The differences in exam grades among students
The differences in both risk-taking and exam grades
The random fluctuations in data collection
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
The authors state: "Total variability in grades = variability explained by risk-taking + unexplained variability due to other factors." What does this equation imply?
Risk-taking is the only factor that explains variability in exam grades
Risk-taking explains some, but not all, of the variability in exam grades
Unexplained variability is irrelevant to the research question
The total variability in grades is constant and cannot be changed
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