Mayrhofer and colleagues (report published December 21, 2023) tested 240 people recruited at one university; ten familiar with the short German science text were excluded, leaving 230 analyzed. All four groups had 30 minutes. One combined memory recall with original-text rereading; three drew concept maps—diagrams of ideas and relationships—while viewing the text, varying detail instructions and memorization. One map group replaced five construction minutes with memorizing its map. On fact questions one week later, recall/rereading outperformed mapping without an added map-memorization period. No reliable difference between recall/rereading and mapping-plus-memorization was detected—not proof of equality. Memorizing a map differs from rereading the source. The reported original test included only two questions about conclusions drawn from the text. Chance assignment was not stated.