scholarly journals The pandemic of online research in times of COVID-19

BMJ Open ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. e043866
Author(s):  
Jeroen De Man ◽  
Linda Campbell ◽  
Hanani Tabana ◽  
Edwin Wouters

The COVID-19 pandemic has led to an explosion of online research using rating scales. While this approach can be useful, two of the major challenges affecting the quality of this type of research include selection bias and the use of non-validated scales. Online research is prone to various forms of selection bias, including self-selection bias, non-response bias or only reaching specific subgroups. The use of rating scales requires contextually validated scales that meet psychometrical properties such as validity, reliability and—for cross-country comparisons—invariance across settings. We discuss options to prevent or tackle these challenges. Researchers, readers, editors and reviewers need to take a critical stance towards research using this type of methodology.

2004 ◽  
Vol 79 (1) ◽  
pp. 51-72 ◽  
Author(s):  
Paul K. Chaney ◽  
Debra C. Jeter ◽  
Lakshmanan Shivakumar

Prior research has examined audit pricing for publicly held firms and provided some evidence of a Big 8 premium in pricing. We investigate audit pricing among private firms, and provide evidence that private firms do not pay such a premium on average. The relatively greater degree of dispersion in auditor choice (between Big 5 and non-Big 5 auditors) in our large sample of privately held audit clients allows us to predict the auditor choice for each firm and to control for potential self-selection. We reject the null hypothesis that clients are randomly allocated across Big 5 and non-Big 5 auditors. Using standard OLS regressions, we document a Big 5 premium; however this premium vanishes once we control for self-selection bias. Moreover, we find that client firms choosing Big 5 auditors generally would have faced higher fees had they chosen non-Big 5 auditors, given their firm-specific characteristics. Our results are consistent with audit markets for private firms being segmented along cost-effective lines. Further, our results suggest that auditees in our setting do not, on average, view Big 5 auditors as superior in terms of the perceived quality of the services provided to a degree significant enough to warrant a fee premium.


Crisis ◽  
2003 ◽  
Vol 24 (2) ◽  
pp. 73-78 ◽  
Author(s):  
Yves Sarfati ◽  
Blandine Bouchaud ◽  
Marie-Christine Hardy-Baylé

Summary: The cathartic effect of suicide is traditionally defined as the existence of a rapid, significant, and spontaneous decrease in the depressive symptoms of suicide attempters after the act. This study was designed to investigate short-term variations, following a suicide attempt by self-poisoning, of a number of other variables identified as suicidal risk factors: hopelessness, impulsivity, personality traits, and quality of life. Patients hospitalized less than 24 hours after a deliberate (moderate) overdose were presented with the Montgomery-Asberg Depression and Impulsivity Rating Scales, Hopelessness scale, MMPI and World Health Organization's Quality of Life questionnaire (abbreviated versions). They were also asked to complete the same scales and questionnaires 8 days after discharge. The study involved 39 patients, the average interval between initial and follow-up assessment being 13.5 days. All the scores improved significantly, with the exception of quality of life and three out of the eight personality traits. This finding emphasizes the fact that improvement is not limited to depressive symptoms and enables us to identify the relative importance of each studied variable as a risk factor for attempted suicide. The limitations of the study are discussed as well as in particular the nongeneralizability of the sample and setting.


2012 ◽  
pp. 24-47
Author(s):  
V. Gimpelson ◽  
G. Monusova

Using different cross-country data sets and simple econometric techniques we study public attitudes towards the police. More positive attitudes are more likely to emerge in the countries that have better functioning democratic institutions, less prone to corruption but enjoy more transparent and accountable police activity. This has a stronger impact on the public opinion (trust and attitudes) than objective crime rates or density of policemen. Citizens tend to trust more in those (policemen) with whom they share common values and can have some control over. The latter is a function of democracy. In authoritarian countries — “police states” — this tendency may not work directly. When we move from semi-authoritarian countries to openly authoritarian ones the trust in the police measured by surveys can also rise. As a result, the trust appears to be U-shaped along the quality of government axis. This phenomenon can be explained with two simple facts. First, publicly spread information concerning police activity in authoritarian countries is strongly controlled; second, the police itself is better controlled by authoritarian regimes which are afraid of dangerous (for them) erosion of this institution.


2012 ◽  
pp. 30-51 ◽  
Author(s):  
T. Natkhov ◽  
L. Polishchuk

Law and public administration schools in Russia vastly exceed in their popularity sciences and engineering. We relate such lopsided demand for higher education to the quality of institutions setting “rules of the game” in economy and society. Cross-country and Russian interregional data indicate the quality of institutions (rule of law, protection of property rights etc.) is negatively associated with the demand for education in law, and positively — in sciences and engineering. More gifted younger people are particularly sensitive to the quality of institutions in choosing their fields of study, and such selection is an important transmission channel between institutions and economic growth.


2021 ◽  
pp. 1-23
Author(s):  
Ashley D. Innis ◽  
Magdalena I. Tolea ◽  
James E. Galvin

Background: Mindfulness is the practice of awareness and living in the present moment without judgment. Mindfulness-based interventions may improve dementia-related outcomes. Before initiating interventions, it would be beneficial to measure baseline mindfulness to understand targets for therapy and its influence on dementia outcomes. Objective: This cross-sectional study examined patient and caregiver mindfulness with patient and caregiver rating scales and patient cognitive performance and determined whether dyadic pairing of mindfulness influences patient outcomes. Methods: Individuals (N = 291) underwent comprehensive evaluations, with baseline mindfulness assessed using the 15-item Applied Mindfulness Process Scale (AMPS). Correlation, regression, and mediation models tested relationships between patient and caregiver mindfulness and outcomes. Results: Patients had a mean AMPS score of 38.0±11.9 and caregivers had a mean AMPS score of 38.9±11.5. Patient mindfulness correlated with activities of daily living, behavior and mood, health-related quality of life, subjective cognitive complaints, and performance on episodic memory and attention tasks. Caregiver mindfulness correlated with preparedness, care confidence, depression, and better patient cognitive performance. Patients in dyads with higher mindfulness had better cognitive performance, less subjective complaints, and higher health-related quality of life (all p-values<0.001). Mindfulness effects on cognition were mediated by physical activity, social engagement, frailty, and vascular risk factors. Conclusion: Higher baseline mindfulness was associated with better patient and caregiver outcomes, particularly when both patients and caregivers had high baseline mindfulness. Understanding the baseline influence of mindfulness on the completion of rating scales and neuropsychological test performance can help develop targeted interventions to improve well-being in patients and their caregivers.


2016 ◽  
Vol 29 (3) ◽  
pp. 313-331 ◽  
Author(s):  
Grant Richardson ◽  
Grantley Taylor ◽  
Roman Lanis

Purpose This paper aims to investigate the impact of women on the board of directors on corporate tax avoidance in Australia. Design/methodology/approach The authors use multivariate regression analysis to test the association between the presence of female directors on the board and tax aggressiveness. They also test for self-selection bias in the regression model by using the two-stage Heckman procedure. Findings This paper finds that relative to there being one female board member, high (i.e. greater than one member) female presence on the board of directors reduces the likelihood of tax aggressiveness. The results are robust after controlling for self-selection bias and using several alternative measures of tax aggressiveness. Research limitations/implications This study extends the extant literature on corporate governance and tax aggressiveness. This study is subject to several caveats. First, the sample is restricted to publicly listed Australian firms. Second, this study only examines the issue of women on the board of directors and tax aggressiveness in the context of Australia. Practical implications This research is timely, as there has been increased pressure by government bodies in Australia and globally to develop policies to increase female representation on the board of directors. Originality/value This study is the first to provide empirical evidence concerning the association between the presence of women on the board of directors and tax aggressiveness.


1993 ◽  
Vol 41 (2) ◽  
pp. 347-360 ◽  
Author(s):  
Pat O'Connor

Despite the feminist critique of the assumptions implicit in the ideology of motherhood, relatively little empirical work has been done on women's own experience of this role. This research note uses data from a small scale intensive study of 51 married or cohabiting mothers aged 20–42 years old, whose oldest child was 15 years old, and who were randomly selected from medical records in a lower middle class area of North London. Building on Boulton's (1983) conceptualization, it differentiates between three aspects of this role (namely their commitment to it; its perceived identity enhancing/ destructive character and the positive/negative quality of their interaction with their children). These women's experience of the mother role was then assessed on these dimensions – using rating scales and anchoring examples (which are illustrated here). This research note suggests that even within this relatively homogenous lower middle/upper working class sample, the experience of motherhood was extremely varied: with less than half of the sample experiencing it positively at all three levels. An attempt is made to explain this variation.


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