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Sound Estimation and Accuracy Task

19 maj 2015 uppdaterad av: 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.

Studieöversikt

Detaljerad beskrivning

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.

Studietyp

Interventionell

Inskrivning (Förväntat)

600

Fas

  • Inte tillämpbar

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studieorter

    • Pennsylvania
      • Pittsburgh, Pennsylvania, Förenta staterna, 15213
        • Carnegie Mellon University

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

18 år och äldre (Vuxen, Äldre vuxen)

Tar emot friska volontärer

Ja

Kön som är behöriga för studier

Allt

Beskrivning

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

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Undersökning
  • Tilldelning: Randomiserad
  • Interventionsmodell: Faktoriell uppgift
  • Maskning: Enda

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Experimentell: 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.
Participants are told that overestimating the duration of sounds are associated with low disease risk.
Participants are told that the task is about risk of Parkinson's disease.
Experimentell: 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.
Participants are told that overestimating the duration of sounds are associated with low disease risk.
Participants are told that the task is about risk of Alzheimers disease.
Experimentell: 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.
Participants are told that the task is about risk of Parkinson's disease.
Participants are told that underestimating the duration of sounds are associated with low disease risk.
Experimentell: 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.
Participants are told that the task is about risk of Alzheimers disease.
Participants are told that underestimating the duration of sounds are associated with low disease risk.

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Time Estimate
Tidsram: 30 minutes
The estimate of the length of time elapsed during the sound file
30 minutes

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Time Generation
Tidsram: 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
Tidsram: 30 minutes
Scale question asking participants their perceived risk of having the diseases in the study
30 minutes

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Utredare

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

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart

1 februari 2015

Primärt slutförande (Faktisk)

1 maj 2015

Avslutad studie (Faktisk)

1 maj 2015

Studieregistreringsdatum

Först inskickad

20 oktober 2014

Först inskickad som uppfyllde QC-kriterierna

20 oktober 2014

Första postat (Uppskatta)

22 oktober 2014

Uppdateringar av studier

Senaste uppdatering publicerad (Uppskatta)

21 maj 2015

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

19 maj 2015

Senast verifierad

1 maj 2015

Mer information

Denna information hämtades direkt från webbplatsen clinicaltrials.gov utan några ändringar. Om du har några önskemål om att ändra, ta bort eller uppdatera dina studieuppgifter, vänligen kontakta register@clinicaltrials.gov. Så snart en ändring har implementerats på clinicaltrials.gov, kommer denna att uppdateras automatiskt även på vår webbplats .

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