scholarly journals The Importance of Teaching Assistant Support and Interactions in Student Engagement

2020 ◽  
Author(s):  
Denise Wilson ◽  
joanna wright ◽  
Lauren Summers
Keyword(s):  
Student Engagement ◽  
Linear Regression ◽  
Survey Data ◽  
Regression Models ◽  
Teaching Assistant ◽  
Public Institution ◽  
Linear Regression Models ◽  
Cross Sectional Survey ◽  
Student Interactions ◽  
Cross Sectional

Hierarchical linear regression models using cross-sectional survey data from over 750 students at a single large public institution were used to assess relationships between TA support, TA-student interactions, and three forms of student behavioral engagement. <br>

scholarly journals The Importance of Teaching Assistant Support and Interactions in Student Engagement

2020 ◽  
Author(s):  
Denise Wilson ◽  
joanna wright ◽  
Lauren Summers
Keyword(s):  
Student Engagement ◽  
Linear Regression ◽  
Survey Data ◽  
Regression Models ◽  
Teaching Assistant ◽  
Public Institution ◽  
Linear Regression Models ◽  
Cross Sectional Survey ◽  
Student Interactions ◽  
Cross Sectional

Hierarchical linear regression models using cross-sectional survey data from over 750 students at a single large public institution were used to assess relationships between TA support, TA-student interactions, and three forms of student behavioral engagement. <br>

scholarly journals Isotonic quadriceps endurance is better associated with daily physical activity than quadriceps strength and power in COPD: an international multicentre cross-sectional trial

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Erik Frykholm ◽  
Sarah Gephine ◽  
Didier Saey ◽  
Arthur Lemson ◽  
Peter Klijn ◽  
...  
Keyword(s):  
Physical Activity ◽  
Linear Regression ◽  
Multiple Linear Regression ◽  
Regression Models ◽  
Sedentary Time ◽  
Quadriceps Strength ◽  
Linear Regression Models ◽  
Cross Sectional ◽  
Quadriceps Function ◽  
Multiple Linear Regression Models

AbstractKnowledge about modifiable determinants of daily physical activity (PA) in patients with chronic obstructive pulmonary disease (COPD) is crucial to design effective PA interventions. The present study aimed to determine the contribution of quadriceps strength, power and endurance to daily PA in COPD. Additionally, for quadriceps endurance, we also aimed to determine to what extent the association varies according to the mode of movement (isotonic, isometric, or isokinetic). Using a multicentre cross-sectional trial design we determined the contribution of quadriceps function to daily PA (steps, sedentary time and time spent doing moderate-to-very-vigorous physical activity [MVPA]) using bivariate and partial Pearson correlation analysis (r) and multiple linear regression models (ΔR2). Pre-determined controlling factors were sex, age, body mass index (BMI), COPD-assessment test, forced expiratory volume in one second in percent of the predicted value (FEV1pred), and distance walked on the 6-minute walk test. Eighty-one patients with COPD (mean ± SD: age 67 ± 8 years, FEV1pred 57 ± 19%, daily steps 4968 ± 3319, daily sedentary time 1016 ± 305 min, and MVPA time 83 ± 45 min) were included. Small to moderate bivariate correlations (r = .225 to .452, p < .05) were found between quadriceps function and measures of PA. The best multiple linear regression models explained 38–49% of the variance in the data. Isotonic endurance was the only muscle contributor that improved all PA models; daily steps (ΔR2 = .04 [relative improvement 13%] p = .026), daily sedentary time (ΔR2 = .07 [23%], p = .005) and MVPA-minutes (ΔR2 = .08 [20%], p = .001). Isotonic endurance was also independently associated with most PA variables, even when controlling for strength, power or isometric-isokinetic endurance properties of the muscle (r = .246 to .384, p < .05). In contrast, neither strength, power, isometric-or isokinetic endurance properties of the muscle was independently associated with PA measures when controlling for isotonic endurance (r = .037 to .219, p > .05). To conclude, strength, power, and endurance properties of the quadriceps were low to moderately associated with PA in patients with COPD. Isotonic quadriceps endurance was the only quadriceps property that was independently associated with the different measures of PA after controlling for a basic set of known determinants of PA, quadriceps strength or power, or isometric or isokinetic quadriceps endurance. Future longitudinal studies should investigate its potential as a modifiable determinant of PA.

Effect of position on intracranial pressure and compliance: a cross-sectional study including 101 patients

2021 ◽  
pp. 1-9
Author(s):  
Linda D’Antona ◽  
Claudia Louise Craven ◽  
Fion Bremner ◽  
Manjit Singh Matharu ◽  
Lewis Thorne ◽  
...  
Keyword(s):  
Intracranial Pressure ◽  
Linear Regression ◽  
Regression Models ◽  
Cross Sectional Study ◽  
Icp Monitoring ◽  
Linear Regression Models ◽  
Sectional Study ◽  
Csf Dynamics ◽  
Cross Sectional ◽  
Intracranial Compliance

OBJECTIVE A better understanding of the effect of position on intracranial pressure (ICP) and compliance is important for the development of treatment strategies that can restore normal cerebrospinal fluid (CSF) dynamics. There is limited knowledge on the effect of position on intracranial compliance. In this cross-sectional study the authors tested the association of pulse amplitude (PA) with position and the day/night cycle. Additionally, they describe the postural ICP and PA changes of patients with “normal” ICP dynamics. METHODS This single-center retrospective study included patients with suspected and/or confirmed CSF dynamics abnormalities who had been examined with elective 24-hour ICP monitoring between October 2017 and September 2019. Patients had been enrolled in a short exercise battery including four positions: supine, lumbar puncture position in the left lateral decubitus position, sitting, and standing. Each position was maintained for 2 minutes, and mean ICP and PA were calculated for each position. The 24-hour day and night median ICP and PA data were also collected. Linear regression models were used to test the correlation of PA with position and day/night cycle. All linear regressions were corrected for confounders. The postural ICP monitoring results of patients without obvious ICP dynamics abnormality were summarized. RESULTS One hundred one patients (24 males and 77 females) with a mean age of 39 ± 13years (mean ± standard deviation) were included in the study. The adjusted linear regression models demonstrated a significant association of ICP with position and day/night cycle, with upright (sitting and standing) and day ICP values lower than supine and night ICP values. The adjusted linear regression model was also significant for the association of PA with position and day/night cycle, with upright and day PA values higher than supine and night PA results. These associations were confirmed for patients with and without shunts. Patients without clear ICP dynamics abnormality had tighter control of their postural ICP changes than the other patients; however, the difference among groups was not statistically significant. CONCLUSIONS This is the largest study investigating the effect of postural changes on intracranial compliance. The results of this study suggest that PA, as well as ICP, is significantly associated with posture, increasing in upright positions compared to that while supine. Further studies will be needed to investigate the mechanism behind this association.

scholarly journals Psychiatric Disorders and Alcohol Consumption Among Low-Income African Americans:Gender Differences

2019 ◽  
Vol 9 (4) ◽  
pp. 86 ◽  
Author(s):  
Sharon Cobb ◽  
Shervin Assari
Keyword(s):  
Alcohol Consumption ◽  
Alcohol Use ◽  
Linear Regression ◽  
Low Income ◽  
Regression Models ◽  
Future Research ◽  
Linear Regression Models ◽  
Cross Sectional ◽  
Men And Women ◽  
Compulsive Disorder

Background: Although cooccurrence of nonsubstance use disorders (non-SUDs) and substance use is well-established in the literature, most of what we know in this regard is derived from studies that have recruited predominantly White sample populations. As a result, there is a gap in knowledge on this link among low-income African Americans (AAs). There is also a need to understand how low-income AA men and women differ in these associations. Objective: To study whether there is an association between number of non-SUDs and amount of alcohol consumption by AA adults, and whether this association varies between AA men and women. Methods: This cross-sectional study recruited a nonrandom sample of 150 AA adults with non-SUDs (i.e., major depression, bipolar disorders, obsessive–compulsive disorder, paranoid disorder, panic disorder, posttraumatic stress disorder (PTSD), and schizoaffective disorder). The independent variable was the number of non-SUDs. The dependent variable was the amount of alcohol consumption. Age, socioeconomic status (educational attainment and household income), and self-rated health were covariates. Gender was the moderator. Linear regression models were used to analyze the data. Results: A higher number of non-SUDs was not associated with a higher amount of alcohol use in the pooled sample of AA adults. We, however, found a significant interaction between gender and number of non-SUDs on the amount of alcohol use, suggesting a stronger effect of non-SUDs on alcohol consumption in AA men than in AA women. Gender-stratified linear regression models showed a positive association between number of non-SUDs and amount of alcohol consumption in AA men but not in AA women. Conclusion: Non-SUDs impact alcohol use of AA men but not women. Future research should test whether AA men may have a higher tendency to turn to alcohol to regulate their emotions and cope with psychological pain due to multiple non-SUDs. The results also suggest that integration of services for SUDs and non-SUDs may be more relevant to provision of mental health services for AA men than AA women.

scholarly journals The Influence of Sitting, Standing, and Stepping Bouts on Cardiometabolic Health Markers in Older Adults

2021 ◽  
pp. 1-9
Author(s):  
Simone J.J.M. Verswijveren ◽  
Cormac Powell ◽  
Stephanie E. Chappel ◽  
Nicola D. Ridgers ◽  
Brian P. Carson ◽  
...  
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Body Composition ◽  
Linear Regression ◽  
Regression Models ◽  
Fasting Glucose ◽  
Cardiometabolic Health ◽  
Linear Regression Models ◽  
Cross Sectional

Aside from total time spent in physical activity behaviors, how time is accumulated is important for health. This study examined associations between sitting, standing, and stepping bouts, with cardiometabolic health markers in older adults. Participants from the Mitchelstown Cohort Rescreen Study (N = 221) provided cross-sectional data on activity behaviors (assessed via an activPAL3 Micro) and cardiometabolic health. Bouts of ≥10-, ≥30-, and ≥60-min sitting, standing, and stepping were calculated. Linear regression models were fitted to examine the associations between bouts and cardiometabolic health markers. Sitting (≥10, ≥30, and ≥60 min) and standing (≥10 and ≥30 min) bouts were detrimentally associated with body composition measures, lipid markers, and fasting glucose. The effect for time spent in ≥60-min sitting and ≥30-min standing bouts was larger than shorter bouts. Fragmenting sitting with bouts of stepping may be targeted to benefit cardiometabolic health. Further insights for the role of standing need to be elicited.

scholarly journals Technology Use in Everyday Financial Activities: Evidence from Online and Offline Survey Data

2019 ◽  
Vol 35 (4) ◽  
pp. 385-400
Author(s):  
Preeti Sunderaraman ◽  
Sarah Ho ◽  
Silvia Chapman ◽  
Jillian L Joyce ◽  
Leigh Colvin ◽  
...  
Keyword(s):  
Survey Data ◽  
Technology Use ◽  
Financial Behavior ◽  
Linear Regression Models ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
Financial Activity ◽  
Younger Age ◽  
Financial Decision ◽  
Technological Methods

Abstract Objective Internet use and mobile devices permeate every aspect of our lives and are changing our financial habits. Assessment of financial decision-making (FDM) has not yet caught up to apparent changes in financial behavior. To modernize assessment methods and create current and comprehensive FDM frameworks, we first need to establish the most commonly used and most preferred methods of performing specific financial activities. Method Cross-sectional survey data were collected using an online platform and offline approaches (in person and by mail) (N = 234). The frequency of using technological (e.g., laptop) and non-technological (e.g., in-person banking) means of completing seven financial activities was assessed first, including Depositing checks, Reviewing bank statements, Keeping track of money spent, Transferring funds, Withdrawing cash, Paying bills, and Purchasing products online. Second, preference for technological versus non-technological methods was assessed. Finally, linear regression models examined associations between demographics and preference for technological methods for each financial activity. Results The majority of respondents (77% online, 74% offline) used technology to perform various financial activities and preferred technological to non-technological methods for completing five out of the six financial activities. Increased preference for technological methods was associated with younger age for all the financial activities, and higher education was associated with reviewing bank statement and transferring funds. Conclusions Our survey findings provide empirical evidence for the changing nature of our financial habits. We discuss the implications of this change for researchers, clinicians, and the individuals themselves and emphasize the importance of modernizing FDM tools.

scholarly journals Differences in beliefs about COVID-19 by gun ownership: a cross-sectional survey of Texas adults

BMJ Open ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. e048094
Author(s):  
Renee M Johnson ◽  
Cassandra Crifasi ◽  
Erin M Anderson Goodell ◽  
Arkadiusz Wiśniowski ◽  
Joseph W Sakshaug ◽  
...  
Keyword(s):  
Logistic Regression ◽  
Linear Regression ◽  
Linear Regression Models ◽  
Gun Ownership ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
Civil Unrest ◽  
Probability Sample ◽  
Gun Carrying ◽  
Perceived Importance

ObjectivesWe investigated the association between gun ownership and perceptions about COVID-19 among Texas adults as the pandemic emerged. We considered perceived likelihood that the pandemic would lead to civil unrest, perceived importance of taking precautions to prevent transmission and perceptions that the threat of COVID-19 has been exaggerated.MethodsData were collected from 5 to 12 April 2020, shortly after Texas’ stay-at-home declaration. We generated a sample using random digit dial methods for a telephone survey (n=77, response rate=8%) and by randomly selecting adults from an ongoing panel to complete the survey online (n=1120, non-probability sample). We conducted a logistic regression to estimate differences in perceptions by gun ownership. To account for bias associated with use of a non-probability sample, we used Bayesian data integration and ran linear regression models to produce more accurate measures of association.ResultsAmong the 60% of Texas adults who reported gun ownership, estimates of past 7-day gun purchases, ammunition purchases and gun carrying were 15% (n=78), 20% (n=100) and 24% (n=130), respectively. We found no evidence of an association between gun ownership with perceived importance of taking precautions to prevent transmission or with perceived likelihood of civil unrest. Results from the logistic regression (OR 1.27, 95% CI 0.99 to 1.63) and the linear regression (β=0.18, 95% CI 0.07 to 0.29) suggest that gun owners may be more likely to believe the threat of COVID-19 was exaggerated.ConclusionsCompared with those without guns, gun owners may have been inclined to downplay the threat of COVID-19 early in the pandemic.

scholarly journals Patterns of change in cardiovascular risk assessments and ankle brachial index among Puerto Rican adults

PLoS ONE ◽  
2021 ◽  
Vol 16 (1) ◽  
pp. e0245236
Author(s):  
Sabrina E. Noel ◽  
David J. Cornell ◽  
Xiyuan Zhang ◽  
Julia C. Mirochnick ◽  
Josiemer Mattei ◽  
...  
Keyword(s):  
Linear Regression ◽  
Puerto Rican ◽  
Mexican Americans ◽  
Regression Models ◽  
Allostatic Load ◽  
Ankle Brachial Index ◽  
Growth Mixture Modeling ◽  
Linear Regression Models ◽  
Cross Sectional

Background Puerto Rican adults have higher odds of peripheral artery disease (PAD) compared with Mexican Americans. Limited studies have examined relationships between clinical risk assessment scores and ABI measures in this population. Methods Using 2004–2015 data from the Boston Puerto Rican Health Study (BPRHS) (n = 370–583), cross-sectional, 5-y change, and patterns of change in Framingham Risk Score (FRS) and allostatic load (AL) with ankle brachial index (ABI) at 5-y follow-up were assessed among Puerto Rican adults (45–75 y). FRS and AL were calculated at baseline, 2-y and 5-y follow-up. Multivariable linear regression models were used to examine cross-sectional and 5-y changes in FRS and AL with ABI at 5-y. Latent growth mixture modeling identified trajectories of FRS and AL over 5-y, and multivariable linear regression models were used to test associations between trajectory groups at 5-y. Results Greater FRS at 5-y and increases in FRS from baseline were associated with lower ABI at 5-y (β = -0.149, P = 0.010; β = -0.171, P = 0.038, respectively). AL was not associated with ABI in cross-sectional or change analyses. Participants in low-ascending (vs. no change) FRS trajectory, and participants in moderate-ascending (vs. low-ascending) AL trajectory, had lower 5-y ABI (β = -0.025, P = 0.044; β = -0.016, P = 0.023, respectively). Conclusions FRS was a better overall predictor of ABI, compared with AL. Puerto Rican adults, an understudied population with higher FRS over 5 years, may benefit from intensive risk factor modification to reduce risk of PAD. Additional research examining relationships between FRS and AL and development of PAD is warranted.

Spatial Distance to Epicenter, Risk Perceptions, and Preventive Behaviors Against Health Risks in the Initial Stage of the COVID-19 Pandemic (Preprint)

2021 ◽  
Author(s):  
Diyi Liu ◽  
Sanmei Wen ◽  
Jing Su
Keyword(s):  
Public Health ◽  
Risk Perceptions ◽  
Regression Models ◽  
Spatial Distance ◽  
Linear Regression Models ◽  
Preventive Behaviors ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
Perceived Susceptibility ◽  
Perceived Severity

BACKGROUND The rapid global spread of COVID-19 has become a monumental public health emergency. Gauging people’s psychological and behavioral reactions in an initial alerting stage is crucial for helping public health authorities to manage the epidemic. OBJECTIVE To investigate how spatial distance from the epicenter of Wuhan influenced people’s risk perceptions regarding COVID-19. Additionally, how risk perceptions, in concert with demographic variables, influenced the adoption of different preventive behaviors in the early stages of the outbreak. METHODS We conducted a national cross-sectional survey from January 21, 2020 to January 23, 2020. We assessed the association between spatial distance from the epicenter and participants’ risk perceptions using linear regression models. We used binomial logistic regression models to calculate the determinants of the adoption of six preventive behaviors against COVID-19. RESULTS Our data contain 1988 valid responses from 31 provinces in mainland China; 28.2% of respondants resided in Hubei province (n=560). Participant locations were roughly coded into five categories based on their geographical distance from the epicenter. We found that the closer people were to the initial epicenter in Wuhan, the higher susceptibility they felt (β=-.24, t=-11.12, P<.001), while their perceived severity displayed no significant variation based on location (β=-.02, t=-.93, P=.35). Compared with those in the peripheral provinces, people in Hubei and the forth-category provinces reported higher odds of wearing facemasks when going out (odds ratio [OR] 2.635 95%CI 1.33-4.17, P<.001; OR 3.19, 95%CI 1.78-5.72, P<.001, respectively). Participants with higher perceived susceptibility had a higher likelihood of wearing masks (OR 1.15, 95%CI 1.01-1.31, P=.04), however, lower odds of avoiding social gatherings (OR 0.87, 95%CI 0.77-0.99, P=.03) and avoiding visiting Wuhan (OR 0.69, 95%CI 0.61-0.77, P<.001). Participants’ perceived severity was positively associated with their engagement in washing hands and frequent ventilation (OR 1.12, 95%CI 1.00-1.24, P=.05), wearing masks in public (OR 1.39, 95%CI 1.25-1.55, P<.001), avoiding social gathering (OR 1.25, 95%CI 1.12-1.38, P<.001) and avoiding traveling to Wuhan (OR 1.13, 95%CI 1.02-1.25, P=.02). Participants’ sex was also associated with their perceived severity and the engagement of precautionary behaviors. CONCLUSIONS These results characterize an “epicenter effect” early in the pandemic. Our findings expand the understanding of perceived susceptibility and severity, which acted as two distinct dimensions of risk perception, and led to different behavioral outcomes.

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