Restructure to block-based mental rotation CAT#420
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Relates to issue #417 |
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This PR updates the mental rotation CAT so that it selects from one block of stimuli at a time, progressing to the next block if the participant's ability estimate/theta is high enough. The CAT starts out showing 2d animals, but will progress to polygons and then 3D shapes if theta is high enough. If the block threshold is not cleared, it will present another block with the same type of stimuli. Block thresholds will be stored in the corpus csv under
block_threshold,and blocks are identified with theblock_indexcorpus column.Spec diagram from psychometrics:
