Test anxiety and the working memory it consumes
Anxiety during a test is not only unpleasant. It occupies the same working memory the items need, so it costs measurable points.
The mechanism
Worry runs as a background task. On items that require holding several elements in mind, that competition is where performance drops.
What reduces it
Sitting a practice run under the real clock, starting with items you can solve to build momentum, and slow breathing before you begin.
Framing the stakes
A low-stakes instrument with a 24-hour retake is a poor object for dread. Treating it as information rather than judgement is itself an intervention.
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Questions people ask
Should I retake if anxiety ruined it?
Yes, after the cooldown. Take the second run in better conditions.
Does the visible clock make it worse?
For some. Glance at it at the halfway point rather than continuously.