Exercise Templates

Brief descriptions of all exercise templates shipped within the R/exams package. Exercise templates along with their PDF and HTML output can be downloaded and inspected as inspiration for new exercises. Demo code for replication is also included.

ttest: Interpretation of 2-Sample t Test

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Exercise template for assessing the interpretation of a randomly-generated 2-sample t test (including significance and type of alternative). Read More ›

tstat2: 1-Sample t-Test Statistic (Single-Choice)

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Exercise template for computing the t-test statistic (single-choice) from given hypothesized mean and empirical mean and variance. Read More ›

tstat: 1-Sample t-Test Statistic

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Exercise template for computing the t-test statistic (numeric answer) from given hypothesized mean and empirical mean and variance. Read More ›

switzerland: Knowledge Quiz Question about Switzerland

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Exercise template for a multiple-choice knowledge quiz question with basic shuffling of the alternatives. Read More ›

swisscapital: Knowledge Quiz Question about the Swiss Capital

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Exercise template for a single-choice knowledge quiz question with basic shuffling of correct and false alternatives. Read More ›

scatterplot: Interpretation of a Scatterplot

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Exercise template for assessing the interpretation of a randomly-generated scatterplot regarding the joint and marginal distributions. Read More ›

relfreq: Interpretation of Relative Frequency Tables

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Exercise template for assessing the interpretation of a table with relative frequencies where either total, row, or column frequencies are selected randomly. Read More ›

regression: Simple Linear Regression (by Hand)

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Exercise template for computing the prediction from a simple linear prediction by hand, based on randomly-generated marginal means/variances and correlation. Read More ›

lm: Simple Linear Regression (with CSV Data)

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Exercise template for conducting a simple linear regression based on a randomly-generated CSV file. Read More ›

lagrange: Method of Lagrange Multipliers

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Exercise template for minimizing a linear objective function with two arguments subject to a Cobb-Douglas-type constraint. Both the parameters of the functions and the exact question (argument 1 vs. argument 2 vs. function value in optimum) are drawn randomly. Read More ›

hessian: 2x2 Hessian Matrix (Single-Choice)

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Exercise template for computing the Hessian for a given function with randomly-drawn parameters. Read More ›

gaussmarkov: Knowledge Quiz Question about Gauss-Markov Assumptions

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Exercise template for a multiple-choice knowledge quiz question about the assumptions in the Gauss-Markov theorem. Read More ›

function: String Question about R Functions

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Exercise template for a knowledge quiz question (about glm-related R functions) where the correct answer has to match exactly a given string. Read More ›

fourfold2: Fourfold Table (Moodle Version)

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Exercise template for computing a fourfold table (as presented in Moodle) of joint and marginal probabilities based on three randomly-drawn conditional or marginal probabilities. Read More ›

fourfold: Fourfold Table

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Exercise template for computing joint probabilities from a 2x2 table based on three randomly-drawn conditional or marginal probabilities. Read More ›

essayreg: Linear Regression (Moodle Essay Question)

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Exercise template for interpreting a simple regression based on randomly-generated data (with either a linear, semi-logarithmic, or log-log relationship) in form of an essay (for Moodle). Read More ›

dist3: Distances and the Pythagorean Theorem (Single-Choice)

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Exercise template for computing the distance (single-choice) between two randomly-drawn points in a Cartesian coordinate system. Read More ›

dist2: Three Distances in a Cartesian Coordinate System

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Exercise template for computing the Manhattan, Euclidean, and maximum distance (cloze with three numeric answers) between two randomly-drawn points in a Cartesian coordinate system. Read More ›

dist: Distances and the Pythagorean Theorem

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Exercise template for computing the distance (numeric answer) between two randomly-drawn points in a Cartesian coordinate system. Read More ›

deriv2: Product Rule for Derivatives (Single-Choice)

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Exercise template for computing the derivative (single-choice) of a production function with factors of type xa and exp(b * x) at a given point c, with randomly-drawn a, b, and c. Read More ›

deriv: Product Rule for Derivatives

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Exercise template for computing the derivative (numeric answer) of a production function with factors of type xa and exp(b * x) at a given point c, with randomly-drawn a, b, and c. Read More ›

currency8: Convert Currencies

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Exercise template for converting currencies (EUR, USD, GBP) with various symbols in UTF-8 encoding. Read More ›

countrycodes: String Question about ISO Country Codes

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Exercise template for a knowledge quiz question (about three-letter ISO country codes) where the correct answer has to match exactly a given string. Read More ›

confint2: 2-Sided Confidence Interval

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Exercise template for computing the 2-sided confidence interval for the mean based on a random sample. Read More ›

cholesky: Cholesky Decomposition

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Exercise template for computing the Cholesky decomposition of a simple randomly-generated 3x3 or 4x4 matrix (by hand). Read More ›

boxplots: Interpretation of 2-Sample Boxplots

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Exercise template for assessing the interpretation of two randomly-generated parallel boxplots regarding location, scale, etc. Read More ›

boxhist2: Univariate Exploration of a CSV File (Moodle Version)

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Exercise template with Moodle-specific markup for assessing the interpretation of exploratory statistics (quantiles) and graphics (boxplot and histogram) based on a randomly-generated CSV file. Read More ›

boxhist: Univariate Exploration of a CSV File

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Exercise template for assessing the interpretation of exploratory statistics (quantiles) and graphics (boxplot and histogram) based on a randomly-generated CSV file. Read More ›

anova: 1-Way Analysis of Variance

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Exercise template for assessing the interpretation of an analysis-of-variance (ANOVA) table in multiple-choice form. Read More ›

Rlogo: Knowledge Quiz Question about the R Logo

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Exercise template for a simple knowledge quiz question including a static graphics file (the R logo). Read More ›