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Colby Johanson

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Hexed by Pressure: How Action-State Orientation Explains Propensity to Choke in Super HexagonCHI PLAY 20242024-10-14
An online experiment with N=144 uses a logged clone of Super Hexagon (single level) plus a stress induction (PASAT-C) or a low‑intensity bubble‑popping control…
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If at First You Don't Succeed: Helping Players Make Progress In Games With Breaks and CheckpointsCHI PLAY 20232023-10-10
Study of a side‑scroll platformer (running, jumping, wall jump, grapple) compares four conditions in a 2x2 design: none / breaks / checkpoints / both…
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Is a Change as Good as a Rest? Comparing Break Types for Spaced Practice in a Platformer GameCHI PLAY 20202020-11-02
Built a custom 2D platformer with wall-jump swing and grapple mechanics and run two experiments: one compares spaced versus continuous practice across four…
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Press Pause when you Play: Comparing Spaced Practice Intervals for Skill Development in GamesCHI PLAY 20192019-10-22
Study uses a Super Hexagon clone to compare continuous practice with spaced practice across 105 novice players who train for 20 minutes total over four…
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