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"Encephalapp Stroop": Validity and reliability of a smartphone app to measure cognitive performance in physically active subjects.

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Title: "Encephalapp Stroop": Validity and reliability of a smartphone app to measure cognitive performance in physically active subjects.
Authors: Solon-Júnior, Luiz José Frota (AUTHOR), Vieira da Silva Neto, Luiz (AUTHOR), Lima-Junior, Dalton de (AUTHOR), Costa, Yago P. (AUTHOR), Klinger da Silva Oliveira, José (AUTHOR), Fiorese, Lenamar (AUTHOR), Fortes, Leonardo de Sousa (AUTHOR)
Source: Applied Neuropsychology: Adult. Jan/Feb2026, Vol. 33 Issue 1, p219-224. 6p.
Subjects: Mobile apps, Test validity, Cognitive processing speed, Cognitive ability, Physically active people, Statistical reliability
Abstract: This study aimed to analyze the validity and reliability of a smartphone app (i.e., Encephalapp Stroop) to measure cognitive performance. Ten physically active individuals (mean age: 25.2 ± 4.3 years) participated in three laboratory visits. In a randomized sequence, subjects completed cognitive assessments using the app and a computer separately. The response times from 100 measurements for congruent and incongruent stimuli were compared between the two devices (app and computer) using the intraclass correlation coefficient, Pearson product-moment correlation coefficient (r), Cronbach's alpha (α), and Bland-Altman plots. There was excellent agreement between the computerized Stroop and the app version for response times for congruent (ICC = 0.806, p < 0.001; Bland-Altman bias = 41.3 ± 56.4 ms, p < 0.001) and incongruent stimuli (ICC = 0.755, p < 0.001; Bland-Altman bias = 76.4 ± 75.1 ms, p < 0.001). In comparison to the computerized version, the app demonstrated a moderate correlation for response times of congruent (r = 0.678, p < 0.001) and incongruent (r = 0.623, p < 0.001) stimuli. The results of the present study indicate that the response times of congruent and incongruent stimuli can be easily, accurately, and reliably evaluated using a mobile app. [ABSTRACT FROM AUTHOR]
Copyright of Applied Neuropsychology: Adult is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: &quot;Encephalapp Stroop&quot;: Validity and reliability of a smartphone app to measure cognitive performance in physically active subjects.
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  Data: &lt;searchLink fieldCode=&quot;JN&quot; term=&quot;%22Applied+Neuropsychology%3A+Adult%22&quot;&gt;Applied Neuropsychology: Adult&lt;/searchLink&gt;. Jan/Feb2026, Vol. 33 Issue 1, p219-224. 6p.
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  Data: This study aimed to analyze the validity and reliability of a smartphone app (i.e., Encephalapp Stroop) to measure cognitive performance. Ten physically active individuals (mean age: 25.2 &#177; 4.3 years) participated in three laboratory visits. In a randomized sequence, subjects completed cognitive assessments using the app and a computer separately. The response times from 100 measurements for congruent and incongruent stimuli were compared between the two devices (app and computer) using the intraclass correlation coefficient, Pearson product-moment correlation coefficient (r), Cronbach&#39;s alpha (α), and Bland-Altman plots. There was excellent agreement between the computerized Stroop and the app version for response times for congruent (ICC = 0.806, p &lt; 0.001; Bland-Altman bias = 41.3 &#177; 56.4 ms, p &lt; 0.001) and incongruent stimuli (ICC = 0.755, p &lt; 0.001; Bland-Altman bias = 76.4 &#177; 75.1 ms, p &lt; 0.001). In comparison to the computerized version, the app demonstrated a moderate correlation for response times of congruent (r = 0.678, p &lt; 0.001) and incongruent (r = 0.623, p &lt; 0.001) stimuli. The results of the present study indicate that the response times of congruent and incongruent stimuli can be easily, accurately, and reliably evaluated using a mobile app. [ABSTRACT FROM AUTHOR]
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  Data: &lt;i&gt;Copyright of Applied Neuropsychology: Adult is the property of Taylor &amp; Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder&#39;s express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.&lt;/i&gt; (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1080/23279095.2024.2343024
    Languages:
      – Code: eng
        Text: English
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        PageCount: 6
        StartPage: 219
    Subjects:
      – SubjectFull: Mobile apps
        Type: general
      – SubjectFull: Test validity
        Type: general
      – SubjectFull: Cognitive processing speed
        Type: general
      – SubjectFull: Cognitive ability
        Type: general
      – SubjectFull: Physically active people
        Type: general
      – SubjectFull: Statistical reliability
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      – TitleFull: "Encephalapp Stroop": Validity and reliability of a smartphone app to measure cognitive performance in physically active subjects.
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            NameFull: Solon-Júnior, Luiz José Frota
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            – D: 01
              M: 01
              Text: Jan/Feb2026
              Type: published
              Y: 2026
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            – TitleFull: Applied Neuropsychology: Adult
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