Word frequency has a long history of being considered the most important predictor of word difficulty and has served as a guideline for several aspects of second language vocabulary teaching, learning, and assessment. However, recent empirical research has challenged the supremacy of frequency as a predictor of word difficulty. Accordingly,…

Writing in a foreign language is a particularly difficult skill to develop, especially when young learners are concerned because they are parallelly learning to write in their L1 and do not have strong oral foundations in their L2. The issue becomes even more complex when the ways to assess young learners' writing are considered, given that…

Differential skill functioning (DSF) exists when examinees from different groups have different probabilities of successful performance in a certain subskill underlying the measured construct, given that they have the same ability on the overall construct. Using a DSF approach, this study examined the differences between two native language…