# Data structure for Rhodes, S., Jaroslawska, A. J., Doherty, J. M., Belletier, C., Naveh-Benjamin, M., Cowan, N., ... & Logie, R. H. (2019). Storage and processing in working memory: Assessing dual-task performance and task prioritization across the adult lifespan. Journal of Experimental Psychology: General, 148(7), 1204.



site	- testing site

ppt	- site specific participant number
session	- which session was this? (1 or 2)
trial	- trial number
practice - was this a practice trial? (1 = yes, 0 = no)
condition - pureProc = single task processing, 10, 30, ..., 90 = points allocated to the memory task, pureMem = single task memory
pres_recall - format of presentation and recall of the to-be-remembered letters (AO = auditory presentation oral recall, VT = visual presentation typed recall)
AS	- was articulatory suppression required? (always no in this experiment)
memSpan	- memory span determined by titration procedure
procSpan- processing span determined by titration procedure	
memItems - letters presented to be recalled (separated by '-')
memResps - letters recalled by participant (separated by '-')
memNcorr - number of letters correct (in correct position)
memRT	- time taken to finish letter recall (ms)
procItems - the pairs of single digits presented for each sum during the processing burst (separated by '-')
procAns	- the answer given to each sum (separated by '-')
procCorrIncorr - whether the sum was correct or incorrect (separated by '-')
procResps - participant responses to processing task (1 = sum is incorrect, 2 = correct) (separated by '-')
procNcorr - number of processing items correct
procRT	- reaction times to each processing item (separated by '-')
ID - unique participant ID
ageGroup - age group 1 to 5 (see manuscript)
age - in yeats
procRTsum - total time taken up by processing task
procRTmean - average response time to processing task
procMisses - number of processing items for which there was no response in time allowed
procPropMisses - above converted into a proportion of total

titrating - which task was being titrated as a single task	
stairLevel - participants completed at least 8 levels starting with a load of 5 (see manuscript for description of titration procedure)
levelTrial - 1 or 2 (there were two trials each level)

YoE	- years of education
qual	- qualification (scored differently at each site) 1 = high school, 5 = advanced degree	
WASI.VC	- Wechsler abbreviated scale of intelligence vocabulary raw score
WASI.MR	- Wechsler abbreviated scale of intelligence matrix reasoning raw score
WASI.VC.T - vocab T score (mean = 50, SD = 10)
WASI.MR.T - matrix T score
T.sum - sum of T values (used to calculate IQ) 
WASI.IQ	- 2 sub scale IQ estimate
MoCA - montreal cognitive assessment score (max = 30)
completed - whether the data of this individual should be used = 1 or excluded = 0 (see manuscript for reasons for exclusion)





