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Projeto de investigação
William James Center for Research
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Publicações
FOODLIT-Trial: Protocol of a Randomised Controlled Digital Intervention to Promote Food Literacy and Sustainability Behaviours in Adults Using the Health Action Process Approach and the Behaviour Change Techniques Taxonomy during the COVID-19 Pandemic
Publication . Rosas, Raquel; Pimenta, Filipa; Leal, Isabel; Schwarzer, Ralf
Dietary quality and sustainability are central matters to the international community, em phasised by the burden of the COVID-19 pandemic. To promote healthier and more sustainable
food-related practices, the protocol of a web-based intervention to enhance adults’ food literacy is
presented. The FOODLIT-Trial is a two-arm, parallel, experimental, and single-blinded randomised
controlled trial delivered over 11 weeks. Based on the Food Literacy Wheel framework and supported
by the Health Action Process Approach (HAPA) and the Behaviour Change Techniques Taxonomy,
weekly content with customised behaviour change techniques (experimental group) is hypothe sised to be more effective to promote food behaviour change when compared to a single-time and
non-customised delivery of food-related international guidelines, with no theoretically informed
approaches (comparison group). Primary outcome is food literacy, including food-related knowledge,
skills, and behaviours, assessed with the FOODLIT-Tool; a secondary outcome includes psycho logical mechanisms that efficaciously predict change in participants’ food literacy, measured with
HAPA-driven items. Enlisted through online sources, participants will be assessed across five time
points (baseline, post-intervention, and 3-, 6-, and 9-month follow-ups, i.e., T0–T4). A randomisation
check will be conducted, analyses will follow an intention-to-treat approach, and linear two-level
models within- (T0–T4) and between-level (nested in participants) will be computed, together with a
longitudinal mediation analysis. If effective, the FOODLIT-Trial will provide for a multidimensional
and cost-effective intervention to enable healthier and more sustainable food practices over the
long term.
Openness Toward Organizational Change Scale (OTOCS) : validity evidence from Brazil and Portugal
Publication . Sinval, Jorge; Miller, Vernon; Marôco, João
Openness toward organizational change is central to employees’ responses to organizations’ strategic actions. This study aims to assess the validity evidence of the Openness Toward Organizational Change Scale (OTOCS) by examining the internal structure of the measure (e.g., dimensionality, reliability, measurement invariance) and its relations with other variables such as quality of work life, burnout, job satisfaction, and work engagement. A cross-sectional study was conducted using total sample of 1,175 workers, with 565 workers from Portugal and 610 from Brazil. The data provided satisfactory validity evidence based on the internal structure: the expected dimensionality was confirmed, acceptable levels of reliability were found, and measurement invariance was achieved among countries and sex. The measure also demonstrated satisfactory validity evidence based on the relations to other variables, being negatively associated with burnout and positively associated with work engagement, job satisfaction and quality of work. The OTOCS proved to be a relatively short self-report measure with satisfactory validity evidence to be used among Brazilian and Portuguese workers.
Andropause representations: a mixed-methods study with portuguese women
Publication . Pimenta, F.; Ramos, Maria Meireles; Silva, Carolina C.; Costa, Pedro Alexandre; Queiroz-Garcia, Inês; Marôco, João; Leal, I.
Since psychosocial factors have some impact on andropause, and this phenomenon
can affect conjugal relationships (and women tend to be health information seekers) it becomes
important to study the representations of andropause using the Common-Sense Model – a model used
to understand the representations of menopause. This research aimed to assess Portuguese women’s
representations of andropause, the suitability of the Common-Sense Model in explaining those
representations, and to explore differences among participants with different characteristics (e.g.,
level of education), regarding andropause representations. Interviews to 30 women were analysed
(directed qualitative content analysis). A multiple correspondence analysis explored the association
between the emergent categories. Mann-Whitney U tests were performed to test differences regarding
the frequency of emergent categories. Undefined identity was the most frequently mentioned feature
regarding andropause Identity, whereas Sexual Function was the most mentioned Negative
Consequence; few Positive Consequences were mentioned, being the Absence of positives
consequences and the Lack of information the most frequent ones. Two bidimensional models were
found - one for Identity of andropause: (1) Aging related changes, and (2) Sexual changes/lack of
information; the other for Negative Consequences: (1) Symptoms/health problems, and (2)
Depression/lack of information. No differences were found in the frequency of andropause
representations between women with different characteristics (e.g., with a romantic relationship vs.
without a romantic relationship). The suitability of the Common-Sense Model to explain these
women’s andropause representations did not differ among participants with distinctive
characteristics. This research may help healthcare professionals to develop comprehensive
interventions (based on this theoretical model) in order to help couples to better understand and cope
with andropause.
Menopause Representations Questionnaire: development and validation with Portuguese women
Publication . Albergaria, R.; Leal, I.; Hunter, M.; Pimenta, F.
Objective: This study aimed to develop and validate a Portuguese version of the Menopause Representations Questionnaire (MenoSentations-Q), a self-report measure to assess cognitive appraisal of menopause, based on cognitive components of the Self-Regulation Model and the results from a previous Portuguese qualitative study.
Methods: A total of 309 Portuguese women, aged 45–65 years, completed the questionnaire. Factorial, convergent, discriminant, and criterion validity, as well as reliability and psychometric sensitivity, were studied.
Results: MenoSentations-Q has demonstrated acceptable factorial, convergent, and discriminant validity, as well as good values of sensitivity and reliability for the four factors (i.e. identity; positive consequences; negative consequences; and control, awareness, and cause). Criterion validity was only obtained for two factors.
Conclusions: MenoSentations-Q, a brief measure of menopausal representations, in this sample of Portuguese women provides information to inform interventions that might include challenging unhelpful menopausal representations. This instrument could be used in both clinical and community settings.
The rough journey to success: Examining the nonlinear dynamics of processes and performance in teams
Publication . Marques-Quinteiro, Pedro; Ramos-Villagrasa, Pedro J.; Navarro, José; Passos, A. M.; Curral, Luis
We build on Nonlinear Dynamic Systems (NDS) theory to examine if
team performance change across a complete performance cycle is nonlinear, and
if such change is related with team processes change over time. Participants were
214 teams enrolled in one management competition. The hypotheses were tested
using nonlinear regressions and catastrophe modeling. The results of the
nonlinear regression model support the hypothesis that change in team
performance over time follows a cusp catastrophe distribution, R2
Cusp = .93, F (5,
1065) = 16889.82, p < .001); and that team processes do function as asymmetry
(transition and action processes) and bifurcation (interpersonal processes)
factors. The results also suggest that the cusp catastrophe model (R2 = .68)
explains team performance better than the linear (R2 = .05) and logistic models
(R2 = .07). This study reiterates the importance of incorporating the NDS
perspective within the teamwork literature to leverage our knowledge about the
way teams perform over time.
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Entidade financiadora
Fundação para a Ciência e a Tecnologia
Programa de financiamento
6817 - DCRRNI ID
Número da atribuição
UID/PSI/04810/2019