title: Comparison Between a Self-Administered and Supervised Version of a Web-Based Cognitive Test Battery: Results From the NutriNet-Santé Cohort Study.
abstract: BACKGROUND
  Dementia is a major public health problem, and repeated cognitive data from large epidemiological studies could help to develop efficient measures of early prevention. Data collection by self-administered online tools could drastically reduce the logistical and financial burden of such large-scale investigations. In this context, it is important to obtain data concerning the comparability of such new online tools with traditional, supervised modes of cognitive assessment.
  
  
  OBJECTIVE
  Our objective was to compare self-administration of the Web-based NutriNet-Santé cognitive test battery (NutriCog) with administration by a neuropsychologist.
  
  
  METHODS
  The test battery included four tests, measuring, among others aspects, psychomotor speed, attention, executive function, episodic memory, working memory, and associative memory. Both versions of the cognitive battery were completed by 189 volunteers (either self-administered version first, n=99, or supervised version first, n=90). Subjects also completed a satisfaction questionnaire. Concordance was assessed by Spearman correlation.
  
  
  RESULTS
  Agreement between both versions varied according to the investigated cognitive task and outcome variable. Spearman correlations ranged between .42 and .73. Moreover, a majority of participants responded that they "absolutely" or "rather" agreed that the duration of the self-administered battery was acceptable (184/185, 99.5%), that the tasks were amusing (162/185, 87.6%), that the instructions were sufficiently detailed (168/185; 90.8%) and understandable (164/185, 88.7%), and that they had overall enjoyed the test battery (182/185, 98.4%).
  
  
  CONCLUSIONS
  The self-administered version of the Web-based NutriCog cognitive test battery provided similar information as the supervised version. Thus, integrating repeated cognitive evaluations into large cohorts via the implementation of self-administered online versions of traditional test batteries appears to be feasible.
authors.affiliation: Université Paris 13, Equipe de Recherche en Epidémiologie Nutritionnelle (EREN), Centre d'Epidémiologie et Statistiques Sorbonne Paris Cité, Inserm (U1153), Inra (U1125), Cnam, COMUE Sorbonne Paris Cité, Bobigny, France. k.assmann@eren.smbh.univ-paris13.fr.
authors.forename: Karen E
authors.identifier: http://orcid.org/0000-0003-3618-9573
authors.initials: KE
authors.lastname: Assmann
authors.forename: Marion
authors.identifier: http://orcid.org/0000-0001-7934-8533
authors.initials: M
authors.lastname: Bailet
authors.forename: Amandine C
authors.identifier: http://orcid.org/0000-0002-9848-786X
authors.initials: AC
authors.lastname: Lecoffre
authors.forename: Pilar
authors.identifier: http://orcid.org/0000-0003-1706-3107
authors.initials: P
authors.lastname: Galan
authors.forename: Serge
authors.identifier: http://orcid.org/0000-0002-3168-1350
authors.initials: S
authors.lastname: Hercberg
authors.forename: Hélène
authors.identifier: http://orcid.org/0000-0002-0119-7242
authors.initials: H
authors.lastname: Amieva
authors.forename: Emmanuelle
authors.identifier: http://orcid.org/0000-0002-9715-3534
authors.initials: E
authors.lastname: Kesse-Guyot
mesh_terms: D000328:Adult; D003071:Cognition; D015331:Cohort Studies; D003704:Dementia / Q000175:diagnosis*; D056344:Executive Function; D005260:Female; D006801:Humans; D020407:Internet; D008297:Male; D008875:Middle Aged; D011581:Psychological Tests; D011795:Surveys and Questionnaires
keywords: cognition; cohort studies; executive function; internet