simulated_language_course: Simulated study on effectiveness of language course (corpora)

In corpora: Statistics and Data Sets for Corpus Frequency Data

Simulated study on effectiveness of language course (corpora)

Description

This function generates simulated results of a study measuring the effectiveness of a new corpus-driven foreign language teaching course.

The generated data set is usually named LanguageCourse (see code examples below) and is used for various exercises and illustrations in the SIGIL course.

Usage

simulated.language.course(n=c(15,20,10,10,14,18,15), mean=c(60,50,30,70,55,50,60),
                          effect=c(5,8,12,-4,2,6,-5), sd.subject=15, sd.effect=5,
                          seed.rng=42)

Arguments

n	number of participants in each class
mean	average score of each class before the course
effect	improvement of each class during the course
sd.subject	inter-subject variability, may be different in each class
sd.effect	inter-subject variability of effect size, may also be different in each class
seed.rng	seed for the random number generator, so data sets with the same parameters are reproducible

Details

TODO

Value

A data frame with sum(n) rows corresponding to individual subjects participating in the study and the following columns

id:

unique ID code of subject

class:

name of the teaching class

pre:

score in standardized language test before the course (pre-test)

post:

score in standardized language test after the course (post-test)

Author(s)

Stephanie Evert (https://purl.org/stephanie.evert)

Examples

LanguageCourse <- simulated.language.course()
head(LanguageCourse, 20)
summary(LanguageCourse)

corpora documentation built on Aug. 24, 2023, 3:03 p.m.