scholarly journals Understanding Between-Person Interventions With Time-Intensive Longitudinal Outcome Data: Longitudinal Mediation Analyses

Author(s):  
Corina Berli ◽  
Jennifer Inauen ◽  
Gertraud Stadler ◽  
Urte Scholz ◽  
Patrick E Shrout

Abstract Background Mediation analysis is an important tool for understanding the processes through which interventions affect health outcomes over time. Typically the temporal intervals between X, M, and Y are fixed by design, and little focus is given to the temporal dynamics of the processes. Purpose In this article, we aim to highlight the importance of considering the timing of the causal effects of a between-person intervention X, on M and Y, resulting in a deeper understanding of mediation. Methods We provide a framework for examining the impact of a between-person intervention X on M and Y over time when M and Y are measured repeatedly. Five conceptual and analytic steps involve visualizing the effects of the intervention on Y, M, the relationship of M and Y, and the mediating process over time and selecting an appropriate analytic model. Results We demonstrate how these steps can be applied to two empirical examples of health behavior change interventions. We show that the patterns of longitudinal mediation can be fit with versions of longitudinal multilevel structural equation models that represent how the magnitude of direct and indirect effects vary over time. Conclusions We urge researchers and methodologists to pay more attention to temporal dynamics in the causal analysis of interventions.

2021 ◽  
Author(s):  
Mona Alhasani ◽  
Ali Alkhawaji ◽  
Rita Orji

The study explored the impact of the COVID-19 pandemic on students' mental health in higher education while capturing their perceptions and attitudes towards time management. The aim was to examine relationships between stress, anxiety, and specific time management related factors. Considering possible differences between genders and degree levels, we developed five structural equation models (SEMs) to delineate these relationships. Results of a large-scale study of 502 participants show that students suffered from stress and two types of COVID-19-related anxiety: disease and consequences. Students' preference for organization was the only factor that significantly promoted their perceived control over time, which contributes to reducing stress, hence, anxiety. However, female students reported higher stress and anxiety levels than male students. Graduate students reported higher anxiety levels related to the consequences of the pandemic compared to undergrads. To promote students' preference for organization, we map the three categories of organization to corresponding persuasive strategies which could be used in the design of persuasive interventions. This creates an opportunity for developing technological interventions to improve students' perceived control over time, thus, reduce stress and anxiety.


2021 ◽  
Vol 10 (8) ◽  
pp. 1782
Author(s):  
Ignacio Ricci-Cabello ◽  
Aina María Yañez-Juan ◽  
Maria A. Fiol-deRoque ◽  
Alfonso Leiva ◽  
Joan Llobera Canaves ◽  
...  

We aimed to examine the complex relationships between patient safety processes and outcomes and multimorbidity using a comprehensive set of constructs: multimorbidity, polypharmacy, discordant comorbidity (diseases not sharing either pathogenesis nor management), morbidity burden and patient complexity. We used cross-sectional data from 4782 patients in 69 primary care centres in Spain. We constructed generalized structural equation models to examine the associations between multimorbidity constructs and patient-reported patient safety (PREOS-PC questionnaire). These associations were modelled through direct and indirect (mediated by increased interactions with healthcare) pathways. For women, a consistent association between higher levels of the multimorbidity constructs and lower levels of patient safety was observed via either pathway. The findings for men replicated these observations for polypharmacy, morbidity burden and patient complexity via indirect pathways. However, direct pathways showed unexpected associations between higher levels of multimorbidity and better safety. The consistent association between multimorbidity constructs and worse patient safety among women makes it advisable to target this group for the development of interventions, with particular attention to the role of comorbidity discordance. Further research, particularly qualitative research, is needed for clarifying the complex associations among men.


2017 ◽  
Vol 35 (21-22) ◽  
pp. 4709-4731 ◽  
Author(s):  
Melissa J. London ◽  
Mary C. Mercer ◽  
Michelle M. Lilly

Recent research has demonstrated that first responders may report posttraumatic growth (PTG), positive psychological changes that arise in the aftermath of a trauma. Less is known regarding the perception of PTG among 9-1-1 telecommunicators, a group of first responders exposed to a high degree of lifetime trauma, including duty-related trauma as well as early and non-duty-related trauma. Moreover, the impact of childhood trauma on the processes involved in the perception of growth is less clear. While some distress is needed to facilitate processes that lead to the perception of PTG, it has been suggested that positive associations between PTG and pathology reflect avoidant coping or represent an illusory component of PTG. Structural equation models were used to examine early trauma exposure, coping, and pathology in predicting PTG among 9-1-1 telecommunicators ( N = 788). In separate models using active and avoidant forms of coping, childhood trauma exposure had an indirect effect on PTG through coping. In a model considering both forms of coping, childhood trauma had an indirect effect on PTG through psychopathology, but not through coping. The results show that early trauma exposure leads to the perception of growth through pathways indicative of both adaptive and maladaptive coping processes.


2020 ◽  
Vol 126 (5) ◽  
pp. 957-969
Author(s):  
Enya N Quiroz-Pacheco ◽  
Francisco Mora ◽  
Karina Boege ◽  
César A Domínguez ◽  
Ek del-Val

Abstract Background and Aims The implications of herbivory for plant reproduction have been widely studied; however, the relationship of defoliation and reproductive success is not linear, as there are many interacting factors that may influence reproductive responses to herbivore damage. In this study we aimed to disentangle how the timing of foliar damage impacts both male and female components of fitness, and to assess when it has greater impacts on plant reproductive success. Methods We measured herbivore damage and its effects on floral production, male and female floral attributes as well as fruit yield in three different phenological phases of Casearia nitida (Salicaceae) over the course of two consecutive years. Then we tested two models of multiple causal links among herbivory and reproductive success using piecewise structural equation models. Key Results The effects of leaf damage differed between reproductive seasons and between male and female components of fitness. Moreover, the impact of herbivory extended beyond the year when it was exerted. The previous season’s cumulated foliar damage had the largest impact on reproductive characters, in particular a negative effect on the numbers of inflorescences, flowers and pollen grains, indirectly affecting the numbers of infructescences and fruits, and a positive one on the amount of foliar damage during flowering. Conclusions For perennial and proleptic species, the dynamics of resource acquisition and allocation patterns for reproduction promote and extend the effects of herbivore damage to longer periods than a single reproductive event and growing season, through the interactions among different components of female and male fitness.


2021 ◽  
Vol 16 (1) ◽  
pp. 169
Author(s):  
Lilik Handajani ◽  
Akram Akram ◽  
Ahmad Rifai

This research aims to examine the impact of sustainable banking practices and bank characteristics on bank performance. Structural equation models were used to analyze 11 banks listed on the Indonesia Stock Exchange that published sustainability reports consistently during the periods of 2015–2018. Results indicate that while the internalization of sustainability issues in banking business practices does not have a significant impact on bank performance, the characteristics of a bank, which are reflected by institutional and foreign ownership and bank age, have a significant effect on bank financial and nonfinancial performance. The implications of sustainable banking practices are indicated to gain legitimacy from regulators for the existence of financial entities and meet stakeholder expectations, which in practice require trade-off of interests among stakeholder groups. Keywords:  sustainable banking, bank performance,  bank characteristic


2021 ◽  
Vol 12 ◽  
Author(s):  
Greta Castellini ◽  
Lorenzo Palamenghi ◽  
Mariarosaria Savarese ◽  
Serena Barello ◽  
Salvatore Leone ◽  
...  

Objective: This study aimed to evaluate the impact of the COVID-19 emergency on patients with IBD's psychological distress, understanding the role of patient engagement as a mediator.Methods: An online questionnaire was created, measuring perceived risk susceptibility toward COVID-19, perceived stress, and patient engagement. The questionnaire was distributed to a purposive sample of IBD patients who belonged to the Italian Association for patients with IBD (AMICI Onlus) in April 2020. Structural equation models were implemented.Results: The effect of the perceived risk susceptibility toward COVID-19 contagion on the perceived stress is fully mediated by patient engagement (β = 0.306, p < 0.001). Moreover, the patient engagement mitigates the perceived stress (β = −0.748, p < 0.001) in our sample of IBD patients, and it is negatively influenced by the perceived risk susceptibility toward COVID-19 (β = −0.410, p < 0.001).Conclusion: Patient engagement is the key factor that explains how the perceived risk susceptibility toward COVID-19 affects the perceived psychological distress in patients with IBD, underlining that the perceived risk of contagion increases their perceived level of stress through a decrease of patient engagement.


2022 ◽  
Vol 14 (2) ◽  
pp. 75
Author(s):  
David Terfa Akighir ◽  
Tyagher Margaret ◽  
Jacob Terungwa Tyagher ◽  
Tordue Emmanuel Kpoghul

Twelve (12) out of the Twenty-three (23) local government areas (LGAs) in Benue State do not have the presence of banks over a long period of time. This situation has deprived the inhabitants of these LGAs of access to formal financial services until the advent of agency banking. This study therefore, investigates the impact of agency banking on financial inclusion and economic activities in Benue State focusing on the agency banking activities of First Bank Ltd. The study is anchored on the agency theory and it used a survey design. The study has utilized both primary and secondary data that were analyzed using descriptive statistical tools and structural equation models. Findings of the study have revealed that agency banking activities of First Bank Ltd have immensely enhanced financial inclusion and economic activities in Benue State. However, challenges such as shortages of cash, security problems, network failures, and lack of financial literacy are militating against the smooth operations of the agency banking in the State. On the basis of these findings, the study has recommended among others that, other banks operating in the State should be encouraged to venture into agency banking in the state so as to have a wider coverage of agency banking in the State. Also, government should provide security and partner with the private sector to provide national carrier communication network system to overcome the network failure challenge. Finally, banks should intensify efforts to educate the masses about the validity and potency of agency banking.


2020 ◽  
Author(s):  
Haitao Wang ◽  
Micha Weil ◽  
Dominik Zak ◽  
Diana Münch ◽  
Anke Günther ◽  
...  

AbstractBackgroundDrainage of high-organic peatlands for agricultural purposes has led to increased greenhouse gas emissions and loss of biodiversity. In the last decades, rewetting of peatlands is on the rise worldwide, to mitigate these negative impacts. However, it remains still questionable how rewetting would influence peat microbiota as important drivers of nutrient cycles and ecosystem restoration. Here, we investigate the spatial and temporal dynamics of the diversity, community composition and network interactions of prokaryotes and eukaryotes, and the influence of rewetting on these microbial features in formerly long-term drained and agriculturally used fens. Peat-soils were sampled seasonally from three drained and three rewetted sites representing the dominating fen peatland types of glacial landscapes in Northern Germany, namely alder forest, costal fen and percolation fen.ResultsCostal fens as salt-water impacted systems showed a lower microbial diversity and their microbial community composition showed the strongest distinction from the other two peatland types. Prokaryotic and eukaryotic community compositions showed a congruent pattern which was mostly driven by peatland type and rewetting. Rewetting decreased the abundances of fungi and prokaryotic decomposers, while the abundance of potential methanogens was significantly higher in the rewetted sites. Rewetting also influenced the abundance of ecological clusters in the microbial communities identified from the co-occurrence network. The microbial communities changed only slightly with depth and over time. According to structural equation models rewetted conditions affected the microbial communities through different mechanisms across the three studied peatland types.ConclusionsOur results suggest that rewetting strongly impacts the structure of microbial communities and, thus, important biogeochemical processes, which may explain the high variation in greenhouse gas emissions upon rewetting of peatlands. The improved understanding of functional mechanisms of rewetting in different peatland types lays the foundation for securing best practices to fulfil multiple restoration goals including those targeting on climate, water, and species protection.


2021 ◽  
Author(s):  
Jörg Matthes ◽  
Kevin Koban ◽  
Ariadne Neureiter ◽  
Anja Stevic

BACKGROUND Given that governmental prevention measures restricted most face-to-face communications, online self-disclosure via smartphones emerged as an alternative coping strategy that aimed at reducing the impact of the COVID-19 pandemic on people’s psychological health. Prepandemic research demonstrated that online self-disclosure benefits people’s psychological health by establishing meaningful relationships, obtaining social support, and achieving self-acceptance, particularly in times of crisis. However, it is unclear whether these dynamics transition well to lockdown conditions where online self-disclosure must stand almost entirely on its own. Longitudinal investigations are needed to gain insights into the psychological functionalities of online self-disclosure during the COVID-19 pandemic. OBJECTIVE This study aimed to determine the temporal associations between smartphone online self-disclosure (as a communicative behavior) and critical indicators of psychological health (including psychopathological, as well as hedonic and eudaimonic states) during the first COVID-19 lockdown in Austria. METHODS We conducted a representative 2-wave panel survey between late March/April 2020 and May 2020. A total of 416 participants completed both waves (43.1% attrition rate, given n=731 participants who completed the first wave). A partially metric measurement invariant overtime structural equation model was used to determine the temporal associations among online self-disclosure, fear of COVID-19, happiness, and psychological well-being. RESULTS The analysis revealed that fear of COVID-19 significantly predicted online self-disclosure over time (<i>b</i>=0.24, <i>P</i>=.003) and happiness over time (<i>b</i>=−0.14, <i>P</i>=.04), but not psychological well-being (<i>b</i>=0.03, <i>P</i>=.48), that is, stronger COVID-19 fears at T1 prompted more online self-disclosure and less happiness at T2. Online self-disclosure, on the other hand, significantly predicted happiness (<i>b</i>=0.09, <i>P</i>=.02), but neither fear of COVID-19 (<i>b</i>=−0.01, <i>P</i>=.57) nor psychological well-being (<i>b</i>=−0.01, <i>P</i>=.57) over time. Participants who engaged more strongly in online self-disclosure at T1 felt happier at T2, but they did not differ from less-disclosing participants concerning COVID-19 fears and psychological well-being at T2. Importantly, happiness and psychological well-being were significantly related over time (happiness T1 → psychological well-being T2: <i>b</i>=0.11, <i>P</i>&lt;.001; psychological well-being T1 → happiness T2: <i>b</i>=0.42, <i>P</i>&lt;.001). CONCLUSIONS Our findings suggest that online self-disclosure might play a pivotal role in coping with pandemic stressors. With restrictions on their options, individuals increasingly turn to their smartphones and social media to disclose their feelings, problems, and concerns during lockdown. While online self-disclosure might not alleviate fears or improve psychological well-being, our results demonstrate that it made people experience more happiness during this crisis. This psychological resource may help them withstand the severe psychological consequences of the COVID-19 crisis over longer timeframes.


2018 ◽  
pp. 960-981 ◽  
Author(s):  
Donald Louis Amoroso ◽  
Pajaree Ackaradejruangsri ◽  
Ricardo A. Lim

This study builds on existing loyalty literature and theories, and extends to include consumer attitudes impact on continuous intention and loyalty based on relationship marketing and information systems. Three structural equation models built from a survey of 458 mobile Thai consumers revealed that inertia was the strongest factor among all constructs in predicting consumer loyalty and continuance intention, either as mediator or antecedent. Support was found for all of the hypothesized relationships for consumers using mobile wallet apps, except for the path between loyalty and continuance intention. Though the direct effects of consumer attitudes were more or less constant, satisfaction became insignificant when inertia acted as a mediator. As an antecedent to both consumer attitudes and satisfaction, inertia significantly increased the explanatory power of continuance intention and loyalty. This study provides new insights into factors that influence loyalty and continuance intention in the context of mobile wallet applications.


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