Table 3.

Researcher-constructed tests of vocabulary knowledge.

		Study	Example item
Form	Spoken	Samad and Makingkung (2020)	(P) Read aloud the word and spell it out loud.
	Written	Lukas et al. (2020)	(P) Name the pictures of animals correctly.
	Word parts	N/A	N/A
Meaning	Form and meaning	Fukushima (2019)	(R) Enter the L1 words after the displayed L2 English words. (P) Enter the L2 English words after the displayed L1 words.
	Concept and referents	N/A	N/A
	Associations	Oberg (2011, p. 136)	(R) Many KUT students ____ by bicycle, but some students take the train or bus. A. stick things together B. move around something C. hang out with friends D. insert into a slot E. commute to school F. spend money on G. recognize a face H. study mechanical engineering I. re-charge batteries J. play video games
Use	Grammatical functions	Alhuwaydi (2020)	(P) Specify the part of speech for words.
	Collocations	N/A	N/A
	Constraints on use	N/A	N/A

R, receptive knowledge; P, productive knowledge; N/A, No example item available in the included studies.