Multiple correlations and bonferroni’s correction

Curtin, François; Schulz, Pierre

doi:10.1016/s0006-3223(98)00043-2

Cited by 534 publications

(361 citation statements)

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“…The final sample consisted of 158 valid EQI protocols (95.8%). The SCIBI-variables in this second study were ordinal and not normally distributed, so for n = 158 non-parametric Spearman's correlation analyses were performed and these correlations were Bonferroni corrected because multiple correlations were calculated (Curtin & Schulz, 1998).…”

Section: Discussionmentioning

confidence: 99%

Measuring staff behavior towards clients with ID and challenging behavior: Further psychometric evaluation of the Staff-Client Interactive Behavior Inventory (SCIBI)

Willems

Embregts

Hendriks

et al. 2012

Research in Developmental Disabilities

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Section: Discussionmentioning

confidence: 99%

Measuring staff behavior towards clients with ID and challenging behavior: Further psychometric evaluation of the Staff-Client Interactive Behavior Inventory (SCIBI)

Willems

Embregts

Hendriks

et al. 2012

Research in Developmental Disabilities

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“…In the next step, each unit was then used to compute correlations with reaction times, detection rates, and the discrimination index AЈ. Only significant correlations were selected that met an ␣-level of 0.05 with Bonferroni correction (Curtin and Schulz, 1998). Finally, the low spatial resolution of the correlation map was interpolated with a spline function in SPM8 to be compatible with the standard brain template for display purposes.…”

Section: Correlations Between Behavioral Responses and Source Gamma-bmentioning

confidence: 99%

Impaired Gamma-Band Activity during Perceptual Organization in Adults with Autism Spectrum Disorders: Evidence for Dysfunctional Network Activity in Frontal-Posterior Cortices

Sun

Grützner²,

Bölte³

et al. 2012

Journal of Neuroscience

137

134

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Current theories of the pathophysiology of autism spectrum disorders (ASD) have focused on abnormal temporal coordination of neural activity in cortical circuits as a core impairment of the disorder. In the current study, we examined the possibility that gamma-band activity may be crucially involved in aberrant brain functioning in ASD. Magneto-encephalographic (MEG) data were recorded from 13 adult human participants with ASD and 16 controls during the presentation of Mooney faces. MEG data were analyzed in the 25-150 Hz frequency range and a beamforming approach was used to identify the sources of spectral power. Participants with ASD showed elevated reaction times and reduced detection rates during the perception of upright Mooney faces, while responses to inverted stimuli were in the normal range. Impaired perceptual organization in the ASD group was accompanied by a reduction in both the amplitude and phase locking of gamma-band activity. A beamforming approach identified distinct networks during perceptual organization in controls and participants with ASD. In controls, perceptual organization of Mooney faces involved increased 60 -120 Hz activity in a frontoparietal network, while in the ASD group stronger activation was found in visual regions. These findings highlight the contribution of impaired gamma-band activity toward complex visual processing in ASD, suggesting atypical modulation of high-frequency power in frontoposterior networks.

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“…Total and uMARS sub-domains were associated with subjective quality, as the associations among uMARS sub-domains are not considered meaningful [50] Given the multiple tests, p values were corrected for type I error [72]. Mann-Whitney (M-W) and Kruskal Wallis (K-W) tests examined differences in continuous variables.…”

Section: Data Analysesmentioning

confidence: 99%

“…After applying the appropriate p value corrections for multiple correlation tests [72], good health status was associated with 'engagement', total uMARS and 'subjective quality'; being obese with total uMARS score; and use of Lark with 'functionality' and 'information'. Very good/excellent health status was negatively related to 'engagement'; use of SparkPeople was negatively related to 'information'.…”

Section: Associations With Users' Characteristicsmentioning

confidence: 99%

Assessing the Quality of Mobile Phone Apps for Weight Management: User-Centered Study With Employees From a Lebanese University (Preprint)

Bardus¹,

Ali²,

Demachkieh³

et al. 2018

Preprint

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Background: Evaluating the quality of mHealth apps for weight loss and weight management is important to understand whether these can be used for obesity prevention and treatment. Recent reviews call for more research on multi-dimensional aspects of app quality, especially involving end-users, as there are already many expert reviews on this domain. However, no quantitative study has investigated how lay persons see popular apps for weight management and how they perceive different dimensions of app quality. Objective: To explore how lay persons evaluate the quality of six free weight management apps (MyDietCoach, SparkPeople, Lark, MyFitnessPal, MyPlate, MyDietDiary), which achieved the highest quality ratings in a related and recent expert review. Methods: A user-centered study was conducted with 36 employees of a Lebanese university. Participants enrolled in the study on a rolling basis between October 2016 and March 2017. Participants were randomly assigned an app to use for two weeks. App quality was evaluated at the end of the trial period using the Mobile App Rating Scale (user version, uMARS). uMARS assesses the dimensions of 'engagement', 'functionality', 'aesthetics', 'information', and 'subjective quality' on 5-point scales. Internal consistency and inter-rater agreement were examined. The associations between uMARS scores and background characteristics were also explored using non-parametric tests. Analyses were completed in November 2017. Results: Overall, the six apps were of moderately good quality (Md uMARS score=3.6, IQR=0.3). The highest total uMARS scores were achieved by Lark (M=4.0, SD=0.5) and MyPlate (M=3.8, SD=0.4), which also achieved the highest subjective quality scores (Lark: M=3.3, SD=1.4; MyPlate: M=3.3, SD=0.8). 'Functionality' was the highest-rating domain (Md=3.9, IQR=0.3), followed by 'aesthetics' (Md=3.7, IQR=0.5), 'information' (Md=3.7, IQR=0.1), and 'engagement ' (Md=3.3, IQR=0.2). 'Subjective quality' was judged low (Md=2.5, IQR=0.9). Overall, 'subjective quality' was strongly and positively related (p<0.001) with total uMARS score (rho=0.75), 'engagement' (rho=0.68), 'information' and 'aesthetics' (rho=0.60), but not 'functionality' (rho=0.40, p=0.02). Higher 'engagement' scores were reported among healthy (p=.003) and obese individuals (p=.034), who also showed higher total uMARS (p=.038), and 'subjective quality' (p=.047) scores. Conclusion: Even if the apps were considered highly functional, they were relatively weak in engagement and subjective quality scores, which indicate a low propensity of using the apps in the future. As engagement was the sub-domain most strongly associated with subjective quality, app developers and researchers should focus on creating apps that are engaging, holding constant the functionality, aesthetics, and information quality. The tested apps (in particular Lark and MyPlate) were perceived as more engaging and of higher quality among healthy, obese individuals, making them a promising mode of delivery for self-directed interventions...

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Multiple correlations and bonferroni’s correction

Cited by 534 publications

References 1 publication

Measuring staff behavior towards clients with ID and challenging behavior: Further psychometric evaluation of the Staff-Client Interactive Behavior Inventory (SCIBI)

Measuring staff behavior towards clients with ID and challenging behavior: Further psychometric evaluation of the Staff-Client Interactive Behavior Inventory (SCIBI)

Impaired Gamma-Band Activity during Perceptual Organization in Adults with Autism Spectrum Disorders: Evidence for Dysfunctional Network Activity in Frontal-Posterior Cortices

Assessing the Quality of Mobile Phone Apps for Weight Management: User-Centered Study With Employees From a Lebanese University (Preprint)

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