19 Questions
Which day and time is the lecture for the course PSYC 3910: Advanced Data Analysis?
Thursday 9:30 am – 11:00 am
Where are the tutorials for session 45684 held?
Room CHA213
Who is the instructor for the course PSYC 3910: Advanced Data Analysis?
Bobby Stojanoski
Which function is used to plot a scatter plot in ggplot2?
geom_point
What does the aes() function do in ggplot2?
Scales the aesthetic based on the variable values
Which function is used to create grouped bar plots in ggplot2?
geom_bar
How can you add error bars to a bar plot in ggplot2?
Use the stat_summary function with geom = 'errorbar'
Which of the following is a topic covered in Week 4?
Fundamentals of GLM
What percentage of the final grade is the midterm exam worth?
25%
What is the purpose of using statistics in psychology?
To understand complicated human behavior
What is Simpson's Paradox?
A phenomenon where an association between two variables disappears when data is divided into subpopulations
Which of the following is an example of a categorical variable?
Gender
What is the measure of central tendency that is not affected by outliers?
Median
What does the interquartile range measure?
The spread of data around the mean
What does positive skew indicate in a frequency distribution?
Scores are bunched at low values with the tail pointing to high values
Which of the following statements about z-scores is true?
Z-scores express a score in terms of how many standard deviations it is away from the mean.
Which of the following statements about the normal distribution and z-scores is true?
99.9% of z-scores lie between -3.29 and 3.29.
What is the purpose of visualizations in data analysis?
To show the data and facilitate relevant interpretation and comparisons.
What is the role of aesthetics in ggplot2?
Aesthetics define the visual properties of the objects in a plot, such as color, size, and shape.
Test your understanding of basic statistics concepts and learn how to overcome common misconceptions in this quiz. Explore the underlying logic and rationale behind statistical tests without the need to memorize complex equations.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
