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While it was not apparent in the review of interview recordings or transcripts, this power dynamic may have incentivized veteran patients and clinicians to speak more favorably of the VANCDSP or caused interviewees to present their care or their patient’s existing care in a more favorable light.
JMIR Cardio 2025;9:e66215
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Power calculations for this primary hypothesis were performed using the SAS procedure PROC GLMPOWER (SAS Version 9.4) [62]. Results indicated that 282 participants after attrition would be needed for 80% power (P
With regard to power for moderation analyses, we ran a sensitivity analysis to compute the smallest effect size our study would be powered to find using 280 given 4 groups (eg, 2 study arms × 2 genders).
JMIR Res Protoc 2025;14:e64449
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Effects on the power to detect differences in the primary outcome will be evaluated and communicated to the principal investigators (PIs), data safety monitoring board (DSMB), and NIH. Given the monitoring plans outlined in the Monitoring subsection, it is exceedingly unlikely that there will be baseline differences between the groups of a magnitude that could threaten the validity of the study.
JMIR Res Protoc 2025;14:e60471
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Reference 22: Sample size in qualitative interview studies: guided by information power
JMIR Pediatr Parent 2025;8:e64618
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In “Effect of Harm Anchors in Visual Displays of Test Results on Patient Perceptions of Urgency About Near-Normal Values: Experimental Study” (J Med Internet Res 2018;20(3):e98) the authors noted one error.
In Table 2, the row labels for the 3 rows under “Extreme results” have been revised.
J Med Internet Res 2025;27:e74908
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In an example of EEG neurofeedback, individuals receive real-time information on their brain activity, often presented as a bar graph, where the height of the bar represents the power of oscillatory activity in a given frequency band (eg, α or β) measured in terms of power (ie, amplitude squared). This visual display allows participants to try to gain control over their brain activity by manipulating the visual feedback.
JMIR Res Protoc 2025;14:e63405
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As a feasibility study, it is not powered for inferential analyses or power analyses, but the results are expected to inform future work.
JMIR Res Protoc 2025;14:e62916
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