Statistical Power Analysis for the Behavioral Sciences (2nd ed.).

Lachenbruch, Peter A.

doi:10.2307/2290095

Cited by 6,422 publications

(1,518 citation statements)

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“…Following Cohen (1988), eta squared in the repeated-measures ANOVA and Cohen's d as a measure of effect sizes (small effect = 0.1-0.3; moderate or intermediate effect = 0.3-0.5; large effect = > 0.5) in paired-sample t-tests were estimated, in addition to t-test comparisons between groups.…”

Section: Data Analysesmentioning

confidence: 99%

Coaching-Based Leadership Intervention Program: A Controlled Trial Study

2020

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In spite of the potential benefits that coaching-based leadership interventions can bring to organizations, basic questions remain about their impact on developing coaching skills and increasing psychological capital (PsyCap), work engagement and in-and extra-role performance. In a controlled trial study, 41 executives and middle managers (25 in the experimental group and 16 in the waiting-list control group) from an automotive sector company in Spain received pre-assessment feedback, a coaching-based leadership group workshop, and three individual executive coaching sessions over a period of 3 months. The intervention program used a strengths-based approach and the RE-GROW model, and it was conducted by executive coaching psychologists external to the organization. Participants (N = 41) and their supervisors (N = 41) and employees (N = 180) took part in a pre-post-follow up 360-degree assessment during the research period. Quantitative data were analyzed using Analyses of Variance (ANOVA) with a 2 × 2 design, paired-samples t-tests, and univariate analyses between groups. Results indicated that the intervention program was successful in increasing the participants' coaching-based leadership skills, PsyCap, work engagement, and in-and extrarole performance. Qualitative measures were also applied, and results from individual responses provided additional support for the study hypotheses. Regarding practical implications, the results suggest that the Coaching-based Leadership Intervention Program can be valuable as an applied positive intervention to help leaders develop coaching skills and enhance well-being and optimal functioning in organizations.

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Section: Data Analysesmentioning

confidence: 99%

Coaching-Based Leadership Intervention Program: A Controlled Trial Study

2020

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“…The distribution analysis of 297 HRV effect sizes from between-group/case-control studies performed by Quintana [72] highlighted that the Cohen's guidelines [73] may underestimate the magnitude of small and large effect sizes. Therefore, it is suggested that HRV studies were generally underpowered.…”

Section: Study Samplementioning

confidence: 99%

Heart Rate Variability in Children and Adolescents with Cerebral Palsy—A Systematic Literature Review

Gąsior

Zamunér

Silva

et al. 2020

JCM

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Cardiac autonomic dysfunction has been reported in patients with cerebral palsy (CP). The aim of this study was to assess the existing literature on heart rate variability (HRV) in pediatric patients with CP and a special attention was paid to the compliance of the studies with the current HRV assessment and interpretation guidelines. A systematic review was performed in PubMed, Web of Science, and Cumulative Index to Nursing and Allied Health Literature (CINAHL) databases searched for English language publications from 1996 to 2019 using Medical Subject Headings (MeSH) terms “heart rate variability” and “cerebral palsy” in conjunction with additional inclusion criteria: studies limited to humans in the age range of 0–18 years and empirical investigations. Out of 47 studies, 12 were included in the review. Pediatric patients with CP presented a significantly higher resting heart rate and reduced HRV, different autonomic responses to movement stimuli compared to children with normal development, but also reduced HRV parameters in the children dependent on adult assistance for mobility compared to those generally independent. None of the included studies contained the necessary details concerning RR intervals acquisition and HRV measurements as recommended by the guidelines. Authors of HRV studies should follow the methodological guidelines and recommendations on HRV measurement, because such an approach may allow a direct comparison of their results.

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“…To achieve the goal set in this study, we chose four tasks/activities that, based on preliminary studies [10,19,33], would highlight the influence of workload on haptic perception with the foot. We defined four conditions.…”

Section: Experiments Conditionsmentioning

confidence: 99%

Perception of a Haptic Stimulus Presented Under the Foot Under Workload

Tchakouté

Ménélas

2020

Sensors

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It is clear that the haptic channel can be exploited as a communication medium for several tasks of everyday life. Here we investigated whether such communication can be altered in a cognitive load situation. We studied the perception of a vibrotactile stimulus presented under the foot when the attention is loaded by another task (cognitive load). The results demonstrated a significant influence of workload on the perception of the vibrotactile stimulus. Overall, we observed that the average score in the single-task (at rest) condition was greater than the overall mean score in the dual-task conditions (counting forwards, counting backwards, and walking). The walking task was the task that most influenced the perception of the vibrotactile stimulus presented under the foot.

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Statistical Power Analysis for the Behavioral Sciences (2nd ed.).

Cited by 6,422 publications

References 0 publications

Coaching-Based Leadership Intervention Program: A Controlled Trial Study

Coaching-Based Leadership Intervention Program: A Controlled Trial Study

Heart Rate Variability in Children and Adolescents with Cerebral Palsy—A Systematic Literature Review

Perception of a Haptic Stimulus Presented Under the Foot Under Workload

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