Statistical analysis based on college placement test performance
Year | Language App | Improved Proficiency | Study Hours for First College Semester |
Sample Size |
Statistical Report |
||
---|---|---|---|---|---|---|---|
Percent | 95% CI | Mean | Range | ||||
BEGINNER USERS | |||||||
2023 | 86 | 78-92 | 13 | 9-17 | 101 | ||
2019 | Rosetta Stone | 88 | 82-93 | 13 | 10-17 | 143 | |
2019 | Mango Languages | 82 | 72-88 | 15 | 12-20 | 87 | |
2018 | italki | 78 | 68-85 | 19 | 13-28 | 102 | |
2016 | Babbel | 92 | 88-95 | 21 | 18-26 | 325 | |
2016 | Busuu | 84 | 77-89 | 22 | 17-34 | 144 | |
2015 | Language Zen | 79 | 70-86 | 25 | 18-41 | 101 | |
2012 | Duolingo | 84 | 75-90 | 34 | 26-49 | 88 | |
INTERMEDIATE USERS | |||||||
2021 | 80 | 71-86 | 13 | 10-23 | 113 |
Methodology and data interpretation guidelines
The numbers in the table are rounded for clarity and presentation purposes.
Web Based Computer Adaptive Placement Exam (WebCAPE), Spanish WebCAPE Computer Adaptive Placement Exam by Jerry Larson and Kim Smith, online version Charles Bush. ©1998, 2004 Humanities Technology and Research Support Center, Brigham Young University,
italki is a special service that connects users to teachers and tutors; it is not a stand alone language app.
Efficacy: Gain in college placement test (WebCAPE points) per one study hour.
Study Hours for One College Semester: Number of study hours in a two-month study period needed to cover the requirements for first college semester of Spanish.
95% CI: 95% confidence interval around the mean.
Range: Transformed 95% CI limits for efficacy; upper and lower limits divided by the threshold requirement for placement in second college semester of Spanish (270 WebCAPE points).