skipped.analysis: Analyze whether the student skipped the questions or not

In wush978/DSRTeacher: Export Tracking Data of Students from DataScienceAndR

Usage

skipped.analysis(records, students = NULL, lessons = DSR.lessons,
  course.source = course.sources)

Arguments

records	The data.frame of the raw records. This should be the output of the function get.records.
students	The user_id to be analyzed. If it is NULL, then all students in the records will be analyzed.
lessons	The character vector of the courses to be analyzed.
course.source	named list. The name is the course name. The value is the root of the swirl course directory.

Value

data.frame with following columns:

• course The course name.

• question.no The number of the question

• user_id The id of the student

• skipped Whether the question is skipped or not

• source.position integer. The index of which part of source found in course.source

Note that the students might do the question multiple times, so there might be multiple rows for the specific course, question.no and user_id. Each row represents each trials of the student at the specific course and question.

Examples

## Not run: 
login("wush")
records <- get.records()
skipped.result <- skipped.analysis(records)
library(dplyr)
group_by(skipped.result, course, question.no, user_id) %>%
 summarise(is.skipped = all(skipped)) %>% # if the student does not skip once, then I recognize that he/she did the question.
 group_by(course, question.no) %>%
 summarise(skip.ratio = mean(is.skipped)) %>%
 arrange(desc(skip.ratio))

## End(Not run)

wush978/DSRTeacher documentation built on May 29, 2019, 2:29 p.m.