Four groups read the e-book with a dictionary with (1) static visuals (SVs) without the printed focal words, (2) dynamic visuals (DVs) without the printed focal words, (3) SVs with the printed focal words, or (4) DVs with the printed focal words. The fifth group read the e-book without a dictionary (control). The results show that word explanations and word use progressed the most after reading the e-book with DVs and printed focal words. Less progress was observed when reading with SVs with printed focal words and DVs without printed focal words.
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