The R package bruno addresses two prospective questions in educational and psychological research: what probability should be assigned to a prespecified measurement-defined event in the next comparable case, and how many event-positive cases are plausible in a specified future sample? bruno provides the corresponding next-case predictive probability and exact beta-binomial predictive distribution, supporting prospective planning alongside conventional outcome and sample-size analyses.
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Irene Gianeselli (2026) studied this question.
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