bias

French translation: biais

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English term or phrase:bias
French translation:biais

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15:01 Jun 10, 2009
English to French translations [PRO]
Science - Mathematics & Statistics
English term or phrase: bias
Definition from Bureau of Justice Assistance:
The extent to which a measurement, sampling, or analytic method systematically underestimates or overestimates the true value of an attribute. FOR EXAMPLE, words, sentence structure, attitudes, and mannerisms may unfairly influence a respondent's answer to a question. Bias in questionnaire data can stem from a variety of other factors, including choice of words, sentence structure, and the sequence of questions.

Example sentence(s):
  • Increasing the sample size tends to reduce the sampling error; that is, it makes the sample statistic less variable. However, increasing sample size does not affect survey bias. A large sample size cannot correct for the methodological problems (undercoverage, nonresponse bias, etc.) that produce survey bias. stattrek.com
  • If, for example, the purpose is measuring average household income and the households without a phone have lower average income than others, ignoring the nonphone group will lead to an upward bias of average household income in the population. Of course the size of the bias would probably be limited in this example, because the group of households without a phone connection is small. rand.org
  • The Internet is an attractive mode of data collection to survey researchers due to cost savings and timeliness in comparison with other modes. However, survey estimates are subject to coverage bias if sampled persons with Internet access are systematically different from those without Internet access who were excluded from the survey. European Survey Research Association
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biais
Definition:
Un biais est un défaut induisant une évaluation erronée. Par extension, un biais est un moyen détourné pour atteindre un résultat faussé.
Selected response from:

Lumina
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4 KudoZ points were awarded for this answer



Summary of translations provided
4 +2biais
Lumina
4 -1erreur systématique
Zogbon (X)


  

Translations offered


1 hr   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): +2
biais


Definition from own experience or research:
Un biais est un défaut induisant une évaluation erronée. Par extension, un biais est un moyen détourné pour atteindre un résultat faussé.

Example sentence(s):
  • Une approche alternative consisterait plutôt à utiliser une clé de répartition fixe […]. Mais cette méthode présente un autre risque de biais. — (INSEE, Partage de la valeur ajoutée, partage des profits et écarts de rémunérations en France , mai 2009) - Wiktionary  
  • On peut chercher si la structure de chiffrement produit des biais statistiques. En général, un algorithme de chiffrement est censé produire un résultat proche d'un générateur de nombres aléatoires uniformément distribués, de manière à donner le moins d'information possible et maximiser l'entropie. Si un biais est observé (par exemple, on observe plus de bits à 1 que de bits à 0) alors des analyses supplémentaires peuvent parfois permettre de concevoir une attaque. - Wapedia  

Explanation:
Nom : un biais.
Adjectif : biaisé.
Verbe : biaiser.
Lumina
Local time: 08:23
Native speaker of: Native in FrenchFrench
PRO pts in category: 4

Votes in favor of/against selecting this as the best translation of the term asked
Yes  Renée Boileau: normalisé
3 days 2 hrs

Yes  SJLD
30 days
Login to enter a peer comment (or grade)

3 days 59 mins   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): -1
erreur systématique


Definition from http://iate.europa.eu/iatediff/FindTerms:
Définition la différence entre la vraie valeur d'une population et sa valeur estimée par sondage(échantillonnage);écart systématique entre une valeur et la valeur de référence ;erreur qui donne lieu à des résultats qui sont d'une façon cohérente plus hauts ou d'une façon cohérente plus bas que le chiffre vrai ;action(ou résultat de l'action)d'introduire un élément qui fausse la validité des résultats d'une recherche
Réf. de la définition METRO;AFNOR;ISO/R 1213-2:1971

Terme erreur systématique
Fiabilité 3 (fiable)
Réf. du terme statistisches Bundesamt;QAFF(1976);ISO/R 1213-2:1971
Commentaire relatif au terme une méthode d'échantillonnage comportant une telle erreur systématique est dite biaisée

Example sentence(s):
Zogbon (X)
Local time: 08:23
Native speaker of: Native in FrenchFrench

Votes in favor of/against selecting this as the best translation of the term asked
No  SJLD: systematic error introduces bias but is only one cause of it
27 days
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