Analysis (ROI)	Dependent Variable	Fixed Effects	R andom Effects
Comprehensive eye-tracking analysis (target words)	Total reading time	Group × Reading phase	(1|Participant) + (0 + Reading phase|Participant) + (1|Item)
Comprehensive eye-tracking analysis (target words)	Fixation count	Group × Reading phase	(1|Participant) + (1|Item)
Comprehensive eye-tracking analysis (lexical elaborations)	Total reading time	Group × Reading phase	(1|Participant) + (0 + Reading phase|Participant) + (1|Item)
Comprehensive eye-tracking analysis (lexical elaborations)	Fixation count	Group × Reading phase	(1|Participant) + (0 + Reading phase|Participant) + (1|Item)
Between-group eye-tracking analysis (target words)	Total reading time	Group	(1|Participant) + (1|Item)
Between-group eye-tracking analysis (target words)	Fixation count	Group	(1|Participant) + (1|Item)
Between-group eye-tracking analysis (lexical elaborations)	Total reading time	Group	(1|Participant) + (1|Item)
Between-group eye-tracking analysis (lexical elaborations)	Fixation count	Group	(1|Participant) + (1|Item)
Within-group eye-tracking analysis—baseline group (target words)	Total reading time	Reading phase	(1|Participant) + (0 + Reading phase|Participant) + (1|Item)
Within-group eye-tracking analysis—baseline group (target words)	Fixation count	Reading phase	(1|Participant) + (0 + Reading phase|Participant) + (1|Item)
Within-group eye-tracking analysis—unenhanced elaboration group (target words)	Total reading time	Reading phase	(1|Participant) + (0 + Reading phase|Participant) + (1|Item)
Within-group eye-tracking analysis—unenhanced elaboration group (target words)	Fixation count	Reading phase	(1|Participant) + (0 + Reading phase|Participant) + (1|Item)
Within-group eye-tracking analysis—enhanced elaboration group (target words)	Total reading time	Reading phase	(1|Participant) + (0 + Reading phase|Participant) + (1|Item)
Within-group eye-tracking analysis—enhanced elaboration group (target words)	Fixation count	Reading phase	(1|Participant) + (0 + Reading phase|Participant) + (1|Item)
Within-group eye-tracking analysis—unenhanced elaboration group (lexical elaborations)	Total reading time	Reading phase	(1|Participant) + (1|Item)
Within-group eye-tracking analysis—unenhanced elaboration group (lexical elaborations)	Fixation count	Reading phase	(1|Participant) + (0 + Reading phase|Participant) + (1|Item)
Within-group eye-tracking analysis—enhanced elaboration group (lexical elaborations)	Total reading time	Reading phase	(1|Participant) + (1|Item)
Within-group eye-tracking analysis—enhanced elaboration group (lexical elaborations)	Fixation count	Reading phase	(1|Participant) + (1|Item)
Vocabulary test analysis	Form recall scores	Group	(1|Participant) + (1|Item)
Vocabulary test analysis	Meaning recall scores	Group	(1|Participant) + (1|Item)
Note. Random-effects structures are presented using lme4-style notation.