# Data structure for Rhodes, S., Doherty, J. M., Jaroslawska, A., Forsberg, A., Belletier, C., Naveh-Benjamin, M., ... & Logie, R. H. (2020). Exploring the influence of temporal factors on age differences in working memory dual task costs.

# Experiment 2

## Participant info file (info.csv)

ppt: participant number

sex: gender

age: age

taskOrder: counterbalancing order

ISIorder: ISI condition order

site: testing site (UK = United Kingdom, US = United States)

dateTime: testing date and time

ID: unique identifier

MoCA: MoCA score


## Choice reaction-time data (choice_rt.csv)

ppt: participant number

Session: testing session

Response: reaction time (ms)

Correct: participant accuracy (correct [1] or incorrect [0])


## Simple reaction-time data (simple_rt.csv)

ppt: participant number

Session: testing session

Site: testing site

age_group: age group

Response: reaction time (ms)


## Experimental data (main.csv)

site: testing site

ppt: participant number

session: [redundant variable]

trial: trial number

practice: practice trial (1) or not (0)

condition: condition (single-task = pureMem & pureProc, numbers = ISI condition)

pres_recall: presentation and recall condition (all visual-typed)

AS: articulatory suppression (all 'no', 0)

memSpan: number of memory items presented

procSpan: number of processing items presented

memItems: presented letters, separated by '-'

memResps: participant responses, separated by '-'

memNcorr: number of correct responses

memRT: time take to respond to all memory items

procItems: processing augends and addends, separated by '-'

procAns: the presented solution to the sum

procCorrIncorrect: whether the presented solution was correct (1) or incorrect (0)

procResps: whether the participant answered 'correct' (1) or 'incorrect' (2)

procNcorr: number of correct responses

procRT: reaction times for each processing item, separated by '-'

ID: unique identifier

ageGroup: age group

age: participant age (years)

procRTsum: total processing reaction time

procRTmean: mean processing reaction time

procMisses: total missed processing responses

procPropMisses: proportion of missed processing responses


## Titration data (titration.csv)

site: testing site

ppt: participant number

session: [redundant variable]

titrating: indicates whether memory or processing is being titrated

pres_recall: memory presentation and recall condition (all visual-typed)

AS: articulatory suppression (all 'no', 0)

stairLevel: titration level (max 8, unless level 8 was the highest span achieved and it continues until failure)

levelTrial: trial number within stairLevel

nMemItems: number of memory items presented

memItems: presented memory items, separated by '-'

memResps: participant responses, separated by '-'

memNcorr: number of correct participant responses

memRT: time taken to respond to all memory items

nProcItems: number of presented processing items

processingDigits: processing augends and addends, separated by '-'

processingSum: the presented solution to the sum

processingCorrAns: whether the presented solution was correct (1) or incorrect (0)

processingResps: whether the participant answered 'correct' (1) or 'incorrect' (2)

procNcorr: number of correct responses

procRTs: reaction times for each processing item, separated by '-'

ID: unique identifier

ageGroup: age group

age: participant age (years)


## Spans (spans.csv)

ID: unique identifier

session: [redundant variable]

site: testing site

pres_recall: memory presentation and recall condition

age: participant age (years)

ageGroup: age group

memSpan: memory span

procSpan: processing span



## Strategy data (strategy.csv)

typeTrial: condition, single- vs dual-task

rehearsal:giveUpProc columns represented likert scale scores on a scale of 1-7

ppt: participant number

site: testing site

ID: unique identifier

ageGroup: age group

age: participant age (years)
