Figure 1. Statistically significant differences in the variable of certainty as found between the measurements No. 1 (blue) and No. 2 (red colour)

From

Certainty and the Linguistic Intervention Program in Foreign Language Learning

Eva Stranovská, Silvia Hvozdíková

American Journal of Educational Research. 2015, 3(6), 753-757 doi:10.12691/education-3-6-14