EMG Biofeedback with College Student Volunteers: Limitations of Effects of Independent Variables

1985 ◽  
Vol 57 (2) ◽  
pp. 647-651 ◽  
Author(s):  
William T. Drennen ◽  
Larry L. Rutledge ◽  
William P. Wattles
Keyword(s):  
College Student ◽  
Emg Biofeedback ◽  
Self Report ◽  
Group Differences ◽  
Independent Variables ◽  
Student Volunteers ◽  
Adaptation Condition

In the present study the relative effects of biofeedback, a set to relax, and a no set (adaptation) condition upon EMG changes in the frontalis muscles were addressed. Subjects were college student volunteers and the proportion of males to females was equal among groups. All subjects were first monitored for minutes (adaptation, no set). Subsequently, subjects in the biofeedback group were then instructed to relax and also to attend to feedback signals to facilitate relaxation for 20 additional minutes (1-min. trials). Subjects in the relaxation set group were given a set to relax but not biofeedback until the last 5-min. segment. Subjects in the no set group were given no instructions to relax and no biofeedback until the last 5-min. segment. Results indicated reductions of EMG monitored tension levels in all groups with no significant between-group differences. Pre- and poststate anxiety self-report measures also showed a significant reduction in anxiety for all groups but no between-group differences reached significance.

JUUL E-Cigarette Quit Attempts and Cessation Perceptions in College Student JUUL E-Cigarette Users

2020 ◽  
pp. 089011712098240
Author(s):  
Kim Pulvers ◽  
John B. Correa ◽  
Paul Krebs ◽  
Omar El Shahawy ◽  
Crystal Marez ◽  
...  
Keyword(s):  
College Student ◽  
Undergraduate Students ◽  
Online Survey ◽  
Self Report ◽  
Cross Sectional ◽  
Quit Attempt ◽  
Lower Confidence ◽  
Perceived Difficulty ◽  
Quit Attempts ◽  
History Of

Purpose: This study describes the frequency of JUUL e-cigarette (referred to as JUUL) quit attempts and identifies characteristics associated with confidence in quitting and perceived difficulty quitting JUUL. Design: Cross-sectional study from a self-administered online survey. Setting: Two public southern California universities. Participants: A total of 1,001 undergraduate students completed the survey from February to May 2019. Measures: Self-report measures about JUUL included use, history of quit attempts, time to first use, perceived difficulty with cessation/reduction, and confidence in quitting. Analysis: Binary logistic regressions were used to identify demographic and tobacco-related behavioral correlates of JUUL cessation-related perceptions and behaviors. Results: Nearly half of ever-JUUL users (47.8%) reported a JUUL quit attempt. Adjusting for demographic factors and other tobacco product use, shorter time to first JUUL use after waking was associated with lower confidence in quitting JUUL (aOR = 0.02, 0.00-0.13) and greater perceived difficulty in quitting JUUL (aOR = 8.08, 2.15-30.35). Previous JUUL quit attempt history was also associated with greater odds of perceived difficulty quitting JUUL (aOR = 5.97, 1.74-20.53). Conclusions: History of JUUL quit attempts among college students was common. Those who had previously tried quitting were more likely to perceive difficulty with cessation. Time to first JUUL use, a marker of dependence, was linked with greater perceived cessation difficulty and lower confidence in quitting. These findings suggest that there is a need for cessation and relapse prevention support for college student JUUL users.

scholarly journals Empathy Measurement in Autistic and Nonautistic Adults: A COSMIN Systematic Literature Review

Assessment ◽  
2020 ◽  
pp. 107319112096456
Author(s):  
Jessica L. Harrison ◽  
Charlotte L. Brownlow ◽  
Michael J. Ireland ◽  
Adina M. Piovesana
Keyword(s):  
Empirical Support ◽  
Self Report ◽  
Group Differences ◽  
Test Case ◽  
Social Differences ◽  
Item Functioning ◽  
The Subject ◽  
Clinical Conditions ◽  
Psychometric Quality

Empathy is essential for social functioning and is relevant to a host of clinical conditions. This COSMIN review evaluated the empirical support for empathy self-report measures used with autistic and nonautistic adults. Given autism is characterized by social differences, it is the subject of a substantial proportion of empathy research. Therefore, this review uses autism as a lens through which to scrutinize the psychometric quality of empathy measures. Of the 19 measures identified, five demonstrated “High-Quality” evidence for “Insufficient” properties and cannot be recommended. The remaining 14 had noteworthy gaps in evidence and require further evaluation before use with either group. Without tests of measurement invariance or differential item functioning, the extent to which observed group differences represent actual trait differences remains unknown. Using autism as a test case highlights an alarming tendency for empathy measures to be used to characterize, and potentially malign vulnerable populations before sufficient validation.

scholarly journals FACTORS AFFECTING ENTREPRENEURIAL INTENTIONS AMONG COLLEGE STUDENT

2021 ◽  
Vol 5 (2) ◽  
pp. 79-86
Author(s):  
Trisna Sary Lewaru
Keyword(s):  
College Student ◽  
Locus Of Control ◽  
Self Efficacy ◽  
Linear Regression Analysis ◽  
Multiple Linear Regression Analysis ◽  
Entrepreneurial Intention ◽  
Entrepreneurial Intentions ◽  
Need For Achievement ◽  
Factors Affecting ◽  
Independent Variables

ABSTRACT This study aims to analyze the factors that influence entrepreneurial intentions among college student. The five independent variables was used include need for achievement, locus of control, self-efficacy, instrumental readiness, entrepreneurship experience. Sample in this research is students on Pattimura University totaling 160 people. Multiple linear regression analysis was used to measure this study. The results of this study indicate that need for achievement, locus of control, entrepreneurship experience have no effect on the intentions of entrepreneurial among students. Whereas instrumental readiness and self-efficacy variable has positive and significant effect on entrepreneurial intention between students of Pattimura University. Keywords : Entrepreneurship, Intentions

The magnitude of neurocognitive impairment is overestimated in depression: the role of motivation, debilitating momentary influences, and the overreliance on mean differences

2022 ◽  
pp. 1-11
Author(s):  
Steffen Moritz ◽  
Jingyuan Xie ◽  
Danielle Penney ◽  
Lisa Bihl ◽  
Niklas Hlubek ◽  
...  
Keyword(s):  
Effect Size ◽  
Neurocognitive Impairment ◽  
Self Report ◽  
Medium Effect ◽  
Group Differences ◽  
Neurocognitive Deficits ◽  
Performance Deficits ◽  
Impact Performance ◽  
The Impact ◽  
Performance Scale

Abstract Background Meta-analyses agree that depression is characterized by neurocognitive dysfunctions relative to nonclinical controls. These deficits allegedly stem from impairments in functionally corresponding brain areas. Increasingly, studies suggest that some performance deficits are in part caused by negative task-taking attitudes such as poor motivation or the presence of distracting symptoms. A pilot study confirmed that these factors mediate neurocognitive deficits in depression. The validity of these results is however questionable given they were based solely on self-report measures. The present study addresses this caveat by having examiners assess influences during a neurocognitive examination, which were concurrently tested for their predictive value on performance. Methods Thirty-three patients with depression and 36 healthy controls were assessed on a battery of neurocognitive tests. The examiner completed the Impact on Performance Scale, a questionnaire evaluating mediating influences that may impact performance. Results On average, patients performed worse than controls at a large effect size. When the total score of the Impact on Performance Scale was accounted for by mediation analysis and analyses of covariance, group differences were reduced to a medium effect size. A total of 30% of patients showed impairments of at least one standard deviation below the mean. Conclusions This study confirms that neurocognitive impairment in depression is likely overestimated; future studies should consider fair test-taking conditions. We advise researchers to report percentages of patients showing performance deficits rather than relying solely on overall group differences. This prevents fostering the impression that the majority of patients exert deficits, when in fact deficits are only true for a subgroup.

scholarly journals The Factorial Validity of the Norwegian Version of the Multicomponent Training Distress Scale (MTDS-N)

2020 ◽  
Vol 17 (20) ◽  
pp. 7603
Author(s):  
Cathrine Nyhus Hagum ◽  
Shaher A. I. Shalfawi
Keyword(s):  
Student Athletes ◽  
Self Report ◽  
School Level ◽  
Group Differences ◽  
Factorial Validity ◽  
Significant Group ◽  
Mimic Model ◽  
Scale Reliability ◽  
Norwegian Version ◽  
Distress Scale

Background: Athlete self-report measures (ASRM) are methods of athlete monitoring, which have gained considerable popularity in recent years. The Multicomponent Training Distress Scale (MTDS), consisting of 22 items, is a promising self-report measure to assess training distress among athletes. The present study aimed to investigate the factorial validity of the Norwegian version of MTDS (MTDS-N) among student-athletes (n = 632) attending the optional program subject “Top-Level Sports” in upper secondary schools in Norway. Methods: A confirmatory factor analysis (CFA) was conducted to assess the six-factor model proposed by Main and Grove (2009). McDonald’s omega (ω) along with confidence intervals (CIs) were used to estimate scale reliability. After examining the fit of the CFA model in the total sample, covariates were included to investigate group differences in latent variables of MTDS-N, resulting in the multiple indicators multiple causes (MIMIC) model. Further, direct paths between the covariates and the factor indicators were included in an extended MIMIC model to investigate whether responses to items differed between groups, resulting in differential item functioning (DIF). Results: When modification indices (MIs) were taken into consideration, the alternative CFA model revealed that MTDS-N is an acceptable psychometric tool with a good fit index. The factors in MTDS-N all constituted high scale reliability with McDonald’s ω ranging from 0.725–0.862. The results indicated statistically significant group differences in factor scores for gender, type of sport, hours of training per week, school program, and school level. Further, results showed that DIF occurred in 13 of the MTDS-N items. However, after assessing the MIMIC model and the extended MIMIC model, the factor structure remained unchanged, and the model fit remained within acceptable values. The student-athletes’ reports of training distress were moderate. Conclusion: The MTDS-N was found to be suitable for use in a Norwegian population to assess student-athletes’ training distress in a reliable manner. The indications of group effects suggest that caution should be used if one is interested in making group comparisons when the MTDS-N is used among student-athletes in Norway until further research is conducted.

Memory Characteristics of College Students Who Volunteer for Research

1997 ◽  
Vol 80 (2) ◽  
pp. 515-520 ◽  
Author(s):  
David S. Kreiner ◽  
Matilda Alvarado ◽  
Shawna R. Shockley
Keyword(s):  
College Student ◽  
General Population ◽  
Verbal Memory ◽  
Visual Memory ◽  
Psychological Research ◽  
Wechsler Memory Scale ◽  
Memory And Attention ◽  
Student Volunteers ◽  
Research Volunteers ◽  
Memory Characteristics

Volunteers for psychological research can differ in important ways from nonvolunteers and from the general population. The memory abilities of a sample of 80 college student research volunteers were measured using the Wechsler Memory Scale–Revised. Compared to general population norms, the sample scored significantly higher on General Memory and Visual Memory compared to those with more than 12 years of education, the sample scored significantly lower on General Memory, Verbal Memory, and Attention but significantly higher on Visual Memory. Although results may vary at different universities, researchers should be cautious in assuming that the memory abilities of samples of college student volunteers accurately represent the population.

scholarly journals Evidence of Neural Microstructure Abnormalities in Type I Chiari Malformation: Associations Among Fiber Tract Integrity, Pain, and Cognitive Dysfunction

Pain Medicine ◽  
2020 ◽  
Vol 21 (10) ◽  
pp. 2323-2335
Author(s):  
James R Houston ◽  
Michelle L Hughes ◽  
Ilana J Bennett ◽  
Philip A Allen ◽  
Jeffrey M Rogers ◽  
...  
Keyword(s):  
White Matter ◽  
Chiari Malformation ◽  
Diffusion Tensor ◽  
Digit Span ◽  
Mean Diffusivity ◽  
Self Report ◽  
Group Differences ◽  
Type I ◽  
Digit Symbol ◽  
Span Tasks

Abstract Background Previous case–control investigations of type I Chiari malformation (CMI) have reported cognitive deficits and microstructural white matter abnormalities, as measured by diffusion tensor imaging (DTI). CMI is also typically associated with pain, including occipital headache, but the relationship between pain symptoms and microstructure is not known. Methods Eighteen female CMI patients and 18 adult age- and education-matched control participants underwent DTI, were tested using digit symbol coding and digit span tasks, and completed a self-report measure of chronic pain. Tissue microstructure indices were used to examine microstructural abnormalities in CMI as compared with healthy controls. Group differences in DTI parameters were then reassessed after controlling for self-reported pain. Finally, DTI parameters were correlated with performance on the digit symbol coding and digit span tasks within each group. Results CMI patients exhibited greater fractional anisotropy (FA), lower radial diffusivity, and lower mean diffusivity in multiple brain regions compared with controls in diffuse white matter regions. Group differences no longer existed after controlling for self-reported pain. A significant correlation between FA and the Repeatable Battery for the Assessment of Neuropsychological Status coding performance was observed for controls but not for the CMI group. Conclusions Diffuse microstructural abnormalities appear to be a feature of CMI, manifesting predominantly as greater FA and less diffusivity on DTI sequences. These white matter changes are associated with the subjective pain experience of CMI patients and may reflect reactivity to neuroinflammatory responses. However, this hypothesis will require further deliberate testing in future studies.

scholarly journals B-56 Personal and Family Psychiatric Histories and Self-Report of Post-Concussive Symptoms in Concussed Children and Adolescents with Prolonged Recovery

2019 ◽  
Vol 34 (6) ◽  
pp. 1002-1002
Author(s):  
K Hassara ◽  
D Pulsipher ◽  
L Stanford ◽  
B Schneider ◽  
E Krapf
Keyword(s):  
Children And Adolescents ◽  
Self Report ◽  
Group Differences ◽  
Psychiatric History ◽  
Targeted Intervention ◽  
Clinical Database ◽  
Duration Of Symptoms ◽  
Prolonged Recovery ◽  
Concussion Recovery ◽  
Post Hoc

Abstract Objective This study seeks to examine whether personal psychiatric history (PPH) and/or family psychiatric history (FPH) are related to prolonged concussion recovery and increased post-concussive symptoms (PCs) in concussed children and adolescents. We hypothesized that individuals with PPH/FPH would endorse a greater number of and more severe PCs relative to those with concussion only or concussion with either PPH or FPH. Methods Data from 255 concussed 8 to 18-year-olds (median = 15.50 years, range = 10.25 years) were retrospectively examined from a clinical database excluding patients with confounding medical comorbidities. PCs (i.e., total symptom count and severity [frequency, intensity, and duration of symptoms]) were compared among four groups (concussion only [n = 80], concussion + PPH [n = 14], concussion + FPH [n = 125], and concussion + PPH/FPH [n = 36]) using a multivariate Kruskal-Wallis test and post-hoc Mann-Whitney U tests. Results The omnibus analysis indicated group differences for injury interval (p = 0.05) and PCs severity (p = 0.002). Post-hoc analyses indicated patients with concussion + PPH/FPH reported greater PCs severity than those with concussion only (U = 726.00, p = 0.0001, r = 0.36) and those with concussion + FPH (U = 1203.00, p = 0.003, r = 0.23). Injury interval was greater for patients with concussion + FPH than those with concussion alone (U = 3474.50, p = 0.007, r = 0.19). Other group differences were non-significant. Conclusions All groups reported a similar number of PCs. FPH contributes to severity of symptoms when combined with PPH. PPH alone did not significantly affect PCs severity. Findings suggest that providers should screen for both PPH and FPH at the time of concussion diagnosis. Early identification of risk factors may lead to targeted intervention, therefore reducing persistent PCs.

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