Marbles (Risky Choice from Description)

Risk & Ambiguity Ciranka, Bahrami & van den Bos (2022) — Uncertainty drives social information use in risky choice across adolescence
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Forced choice between a SAFE option (5 points guaranteed) and a RISKY option (probability p of winning V points, otherwise 0). Six probability levels and three payoff levels are crossed factorially with two combinations excluded; remaining 16 unique trials are repeated 4 times each (64 total trials). Tests risk aversion, expected-value sensitivity, and the magnitude-by-probability interaction.

Parameters

Trials 64
Response Type Keyboard
Response Deadline 8000ms
Response Keys F, J