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Table 1 Description of the Rey Auditory Verbal Learning Task-Revised (RAVLT-R) and prose recall measurements used for analyses (n = 35)

From: Oral cannabidiol did not impair learning and memory in healthy adults

RAVLT-R

Description

Trial A1

Number of words recalled from list A on the 1st trial

Trial A2

Number of words recalled from list A on the 2nd trial

Trial A3

Number of words recalled from list A on the 3rd trial

Trial A4

Number of words recalled from list A on the 4th trial

Trial A5

Number of words recalled from list A on the 5th trial

Sum of Trials A1-5

Sum of words recalled from list A across the 5 trials

Trial B

Number of words recalled from List B (distractor list)

Trial A6

Number of words recalled from list A after the distractor list

Trial A7

Number of words recalled from list A after a 30-min delay

PI Ratio

Proactive Interference ratio (trial B1/A1)

RI Ratio

Retroactive Interference ratio (trial A6/A5)

FS Ratio

Forgetting Speed ratio (trial A7/A6)

PROSE RECALL

Description

Immediate

Number of items immediately recalled from the story

Delay

Number of items recalled from the story after a 30-min delay

Total

Sum of items recalled from Immediate and Delay Prose Recall

  1. *For both Versions of the assessments, participants were instructed to listen to a list of 15 words (List A) read to them. They were then asked to recall List A in five different trials, with the words repeated to them after each trial. Participants were scored for the number of correctly repeated words for each trial. Afterwards, the participants were instructed to listen to another list of 15 words (List B), asked to recall List B once, and scored for the number of correctly repeated words. Participants were then immediately asked to recall List A, and their responses were scored. Participants were distracted with a prose recall test, by reading to them a short story and asking them to repeat the story word-for-word. Following the prose recall, participants were asked to complete a Delayed recall of List A. They were scored for the number of correctly repeated words