
In a group: ten minutes of silent writing first, then pass the lists and build on two others' ideas, then discuss and vote. Groups brainstorming out loud lost to the same people working alone.
S Evidence: strong. Large trials or many studies, pointing the same way.
P Evidence: promising. Good studies, but small or few. Use it and keep checking.
Mullen, Johnson & Salas 1991 (meta-analysis, 22 experiments) · brainwriting studies.
Not medical, legal or financial advice.
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