note

This dataset contains measurements related to Boston Process Approach (BPA) Errors which participants made during their neuropsychological assessments, administered between 2005 and 2021
Analysts should evaluate the use of this dataset according to their research study designs. To better understand these error measurements, it will be important to read through the protocol document.
Key NP Error Type Terminology:

Confabulation - Details “made up” by the participant that were not part of the information presented by the examiner. Sometimes confabulations are semantically related to a detail or item mentioned during the learning phase of the test (ex: examiner said “grocery” and the participant later recalled “vegetables”) and sometimes they are unrelated.
Interference - Old information interferes with the learning of new information; typically, a detail from a previous conversation or testing that the participant presents as part of the current test. For example, if the participant mentioned they were a doctor during the demographics section of testing, then recalled that Anna Thompson (Logical Memory) was a doctor, which she is not, that is an intrusion. Like confabulations, intrusions can also be related or unrelated to the presented stimuli.
Contaminations - Contamination refers to the erroneous inclusion of a detail from another stimulus into the current drawing/ test (similar, in concept, to an intrusion). For example, if there was a flag in the first drawing a participant recalled, and they drew that same flag in their second drawing (which should not have a flag), that is a contamination error. • Perseverations - Perseverations are errors of repetition; when the participant recalls the same detail more than once, without being asked to do so.