Statistical Ranking by Language App Oral Proficiency
Based on ACTFL OPIc

Rank
Year
Language App
At Least
One Level Up
Two Levels or more Up
Sample
Size
Statistical
Report
Percent
95% CI
Percent
1
2016
75
63-85
32
61
1, 2
2
2017
73
60-83
16
55
1, 2
3
2018
72
61-80
22
81
1, 2
NA
2009
64
56-72
19
135
1, 2

Explanatory Notes

* The numbers in the table are rounded.
* ACTFL OPIc: Oral Proficiency Interview by Computer (OPIc) created by Language Testing International (LTI). LTI is the exclusive licensee of the American Council on the Teaching of Foreign Languages (ACTFL) link .
* italki: this is a special service that connects users to teachers and tutors; it is not a stand alone language app.
* 95% CI: 95% confidence interval with Agresti-Coull correction.
* At Least One Level Up: increased OPIc oral proficiency by at least one level (level definition link).
* Two Levels or more Up: increased OPIc oral proficiency by at least two levels.
* NA: Not directly comparable because the study time was self reported.