Table 1 Schedule of enrollment, assessments, and interventions

Enrolment

Eligibility screening and conditional enrolment

X

Informed consent^a

X

X

MoCA assessment, confirmation of eligibility, and final enrolment

X

Randomization

X

Interventions

Active control: Simple RT

X

Experimental—low: Choice RT

X

Experimental—medium: Switching

X

Experimental—high: Dual tasking

X

Assessment of Training and Near Transfer Gains

Simple RT tasks (drawings, shapes, numbers)

X

X

X

Choice RT tasks (drawings, shapes, numbers)

X

X

X

Switching tasks (drawings, shapes, numbers)

X

X

X

Dual tasks (drawings, shapes, numbers)

X

X

X

Assessment of Far Transfer Gains

Working memory

 Updating

X

X

X

 Binding

X

X

X

 Continuous reproduction

X

X

X

Inhibitory control

 Go/no-go

X

X

X

 Number stroop

X

X

X

 Simon

X

X

X

Reasoning

 Matrix reasoning

X

X

X

 Paper folding

X

X

X

 Letter sets

X

X

X

Everyday cognitive functioning

 Cognitive Failures  Questionnaire (CFQ)

X

X

X

 Questionnaire d’Auto-évaluation de la Mémoire (QAM)

X

X

X

 Everyday Problems Test (EPT)

X

X

X

Assessment of Individual Characteristics

Socioeconomic background

X

Cognitive training experience and motivation

X

Computer and internet literacy

X

Self-rated physical health

X

General self-rated health

X

X

X

Depression, Anxiety and Stress Scale—21 Items (DASS-21)

X

Activities of Daily Living-Prevention Instrument (ADL-PI)

X

X

X

Leisure activities

X

Active driving

X

Big Five Inventory (BFI)

X

Short Grit Scale (Grit-S)

X

Theories of Intelligence Scale (TIS)

X

X

X

Exercise Self-Efficacy Scale (EXSE)

X

General Self-Efficacy Scale (GSE)

X

X

X

Perceived training benefits

X

Training review

X

Daily factors

X

X

X

X

X

X

X