Deze pagina is automatisch vertaald en de nauwkeurigheid van de vertaling kan niet worden gegarandeerd. Raadpleeg de Engelse versie voor een brontekst.

Sound Estimation and Accuracy Task

19 mei 2015 bijgewerkt door: Eric VanEpps, Carnegie Mellon University

Estimation and Accuracy in Sound Task Perceived to be Medically Diagnostic

Participants will be assigned to complete computerized estimation tasks for which there is a component of accuracy, such as estimating the duration of sounds. Participants will be told that the task is used as an early diagnostic tool to detect those at risk for a medical condition (e.g., Parkinson's disease, Alzheimer's disease). Instructions will be given to participants telling them that accuracy on the task is associated with the disease, whereas those who are not at risk of the disease tend to either overestimate or underestimate the duration of the sounds. The investigators examine whether such instructions about the purpose and diagnosticity of the tasks biases participants' responses to the tasks, leading them to purposefully be more inaccurate in their estimates.

Studie Overzicht

Toestand

Voltooid

Conditie

Interventie / Behandeling

Gedetailleerde beschrijving

Participants will be assigned to complete computerized tasks for which there is a component of accuracy, such as estimating the length, in time, of sounds. Participants will be told that the task is used as an early diagnostic tool to detect those at risk for a medical condition (e.g., Parkinson's disease, Alzheimer's disease). Instructions will be given to participants telling them that accuracy on the task is associated with the disease in question, whereas those who are not at risk of the disease tend to either overestimate or underestimate the duration of the sounds. The investigators examine whether such instructions about the purpose and diagnosticity of the tasks biases participants' responses to the tasks. The investigators collect additional survey measures as statistical controls and potential explanatory variables for variation in the performance on the tasks, and also test whether financial incentives for accuracy on these tasks improve the accuracy of responses to these tasks.

Following the task, all participants will be told that the tasks used are actually NOT diagnostic of the diseases in question, and that deception was used to learn how people respond to instructions about how a task can be used for diagnostic purposes.

Studietype

Ingrijpend

Inschrijving (Verwacht)

600

Fase

  • Niet toepasbaar

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studie Locaties

  • Verenigde Staten
    • Pennsylvania
      • Pittsburgh, Pennsylvania, Verenigde Staten, 15213
        • Carnegie Mellon University

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

18 jaar en ouder (Volwassen, Oudere volwassene)

Accepteert gezonde vrijwilligers

Ja

Geslachten die in aanmerking komen voor studie

Allemaal

Beschrijving

Inclusion Criteria:

  • 18 or older
  • Able to access tasks on computer
  • Able to hear sounds played on computer

Exclusion Criteria:

  • Computer speakers absent or not functioning

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Screening
  • Toewijzing: Gerandomiseerd
  • Interventioneel model: Faculteitstoewijzing
  • Masker: Enkel

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Experimenteel: Overestimate Parkinson's
People are told that overestimates on the sound estimation task are associated with being healthy and having a low risk of Parkinson's disease, whereas those who are accurate are more likely to develop the disease later in life.
Ander: Instructions about Overestimates
Participants are told that overestimating the duration of sounds are associated with low disease risk.
Ander: Instructions about Parkinson's
Participants are told that the task is about risk of Parkinson's disease.
Experimenteel: Overestimate Alzheimers
People are told that overestimates on the sound estimation task are associated with being healthy and having a low risk of Alzheimers disease, whereas those who are accurate are more likely to develop the disease later in life.
Ander: Instructions about Overestimates
Participants are told that overestimating the duration of sounds are associated with low disease risk.
Ander: Instructions about Alzheimers
Participants are told that the task is about risk of Alzheimers disease.
Experimenteel: Underestimate Parkinson's
People are told that underestimates on the sound estimation task are associated with being healthy and having a low risk of Parkinson's disease, whereas those who are accurate are more likely to develop the disease later in life.
Ander: Instructions about Parkinson's
Participants are told that the task is about risk of Parkinson's disease.
Ander: Instructions about Underestimates
Participants are told that underestimating the duration of sounds are associated with low disease risk.
Experimenteel: Underestimate Alzheimers
People are told that underestimates on the sound estimation task are associated with being healthy and having a low risk of Alzheimers disease, whereas those who are accurate are more likely to develop the disease later in life.
Ander: Instructions about Alzheimers
Participants are told that the task is about risk of Alzheimers disease.
Ander: Instructions about Underestimates
Participants are told that underestimating the duration of sounds are associated with low disease risk.

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Time Estimate
Tijdsspanne: 30 minutes
The estimate of the length of time elapsed during the sound file
30 minutes

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Time Generation
Tijdsspanne: 30 minutes
The length of time selected for the sound file to run by participants in a secondary task
30 minutes
Perceived Risk of Disease
Tijdsspanne: 30 minutes
Scale question asking participants their perceived risk of having the diseases in the study
30 minutes

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Sponsor

Carnegie Mellon University

Onderzoekers

  • Hoofdonderzoeker: Eric M VanEpps, MS, Carnegie Mellon University

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start

1 februari 2015

Primaire voltooiing (Werkelijk)

1 mei 2015

Studie voltooiing (Werkelijk)

1 mei 2015

Studieregistratiedata

Eerst ingediend

20 oktober 2014

Eerst ingediend dat voldeed aan de QC-criteria

20 oktober 2014

Eerst geplaatst (Schatting)

22 oktober 2014

Updates van studierecords

Laatste update geplaatst (Schatting)

21 mei 2015

Laatste update ingediend die voldeed aan QC-criteria

19 mei 2015

Laatst geverifieerd

1 mei 2015

Meer informatie

Termen gerelateerd aan deze studie

Trefwoorden

Aanvullende relevante MeSH-voorwaarden

Andere studie-ID-nummers

  • HS14-553

Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .

Klinische onderzoeken op Ziekte van Alzheimer

Klinische onderzoeken op Instructions about Overestimates

Zoek naar vergelijkbare onderzoeken

Sponsors en medewerkers

Medische omstandigheden

Geneesmiddelinterventies

CROs by country

CROs in Luxembourg

Voorwaarden

Zeldzame ziekten

Geneesmiddelinterventies

Voedingssupplementen

Sponsor / medewerkers

Locaties

3
Abonneren