Samuel Lins

Samuel Lins
University of Porto | UP · Faculty of Psychology and Education Sciences

PhD in Psychology

About

162
Publications
84,495
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1,160
Citations
Introduction
Samuel Lins is professor of Social Psychology and researcher of the Laboratory of Social Psychology from the Center for Psychology at the University of Porto (CPUP). He graduated in Psychology and Management, and his research interests include consumer psychology, consumer behavior - mainly impulse buying behavior. His recent research projects are focused on how the group processes (social comparison, social identity, and social influence) trigger impulse buying | www.instagram/osamuellins
Additional affiliations
October 2016 - present
University of Porto
Position
  • Professor
March 2015 - September 2016
Pontifícia Universidade Católica do Rio de Janeiro
Position
  • Professor

Publications

Publications (162)
Article
Full-text available
Purpose: Impulse buying is a topic still scarcely studied in the scientific community. However, it proves to be very pertinent since it is a very complex, broad behavior and influenced by several variables. This study aimed to find associated variables with impulse buying of books. Methodology: 347 Portuguese participated in the study, aged between...
Article
Full-text available
Economic inequality is associated with preferences for smaller, immediate gains over larger, delayed ones. Such temporal discounting may feed into rising global inequality, yet it is unclear whether it is a function of choice preferences or norms, or rather the absence of sufficient resources for immediate needs. It is also not clear whether these...
Article
Full-text available
During the onset of the COVID-19 pandemic, the COVIDiSTRESS Consortium launched an open-access global survey to understand and improve individuals' experiences related to the crisis. a year later, we extended this line of research by launching a new survey to address the dynamic landscape of the pandemic. this survey was released with the goal of a...
Article
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The Big Five Inventory-10 (BFI-10; Rammstedt & John, 2007) is one of many short versions of personality inventories that measure the Big Five trait dimensions. Short versions of scales often present methodological challenges as a trade-off for their convenience. Based on samples from 28 countries (N = 10,560), the current study investigated inter-i...
Article
Full-text available
The study of moral judgements often centres on moral dilemmas in which options consistent with deontological perspectives (that is, emphasizing rules, individual rights and duties) are in conflict with options consistent with utilitarian judgements (that is, following the greater good based on consequences). Greene et al. (2009) showed that psychol...
Article
Full-text available
Significance Communicating in ways that motivate engagement in social distancing remains a critical global public health priority during the COVID-19 pandemic. This study tested motivational qualities of messages about social distancing (those that promoted choice and agency vs. those that were forceful and shaming) in 25,718 people in 89 countries...
Article
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This study aims to understand the meanings that Apple consumers attribute to the brand. It also aims to test a brand identification model. To this end, a mixed-method approach has been adopted. Qualitative data were analysed using the Iramuteq computer program while for quantitative data structural equation modelling was used. The results show that...
Article
Values serve as a guide of people's choices and behaviours, including consumer behaviour. The present study aims to identify whose basic human values predict impulse buying and status consumption. 613 Portuguese adults (382 females, 225 males, and six defined as "other") participated in the study, with a mean age of 25.09 years (SD = 8.45). We used...
Preprint
Full-text available
This study explored the antecedents and outcomes of negative emotional responses to climate change among people from a diverse range of cultural and national contexts. We analysed cross-sectional data gathered in 28 countries (N = 10,963). Our results show that negative emotional responses to climate change are positively related to the amount of a...
Article
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Buscou-se investigar a associação de tendências à ação frente a violações morais com códigos de ética e o nível de proximidade com o transgressor. Participaram 200 universitários (70% mulheres, idade M = 23 anos; DP = 6,62). Eles responderam questões sociodemográficas, a Escala de Comunidade, Autonomia e Divindade e a Lista de Tendências à Ação fre...
Article
Conspicuous consumption is considered a deliberate engagement in the purchase, possession and symbolic and visible use of products and services, with the motivation to communicate a distinct self-image to others (Roy Chaudhuri et al., 2011). However, the measurement of this concept varies according to the facets on which the studies reported in the...
Preprint
Full-text available
Este estudo tem como objetivo identificar os significados atribuídos pelos portugueses ao vinho do Porto; além disso, investigar, através de um estudo experimental, como a unicidade e o desconto influenciam a tendência para comprar por impulso o vinho do Porto, e perceber como as variáveis em estudo influenciam cada um dos contextos experimentais....
Preprint
Full-text available
Economic inequality is associated with extreme preferences for smaller, immediate gains over larger, delayed ones. This pattern, known as temporal discounting, may feed into rising global inequality, yet it is unclear if it is a function of choice preferences or norms, or rather the absence of sufficient resources to meet immediate needs. It is als...
Article
The study aims to verify the predictive power of anxiety, depression, and stress over panic buying, and to assess gender differences. Data was collected in Brazil during May 2020 through an online questionnaire which was composed of sociodemographic questions, the Panic Buying Scale (PBS), the General Health Questionnaire (GHQ-12) to assess anxiety...
Article
Full-text available
A compra por impulso é um tema complexo e com variadas influências. Este estudo experimental tem por objetivo analisar o efeito da identidade social, das emoções e da marca do produto na tendência de jovens para comprar sapatilhas por impulso. Participaram 545 jovens portugueses, que responderam a um questionário online sobre um cenário experimenta...
Article
Full-text available
Introdução: A redução de escalas visa a redução da quantidade de itens, mantendo-se suas qualidades psicométricas. O presente estudo teve como objetivo a redução da versão brasileira da escala de compra por impulso de Rook e Fisher. Método: Participaram do estudo 1173 brasileiros, sendo 868 mulheres e 305 homens com a média de idade de 24.8 anos e...
Article
Full-text available
Pervading global narratives suggest that political polarization is increasing, yet the accuracy of such group meta-perceptions has been drawn into question. A recent US study suggests that these beliefs are inaccurate and drive polarized beliefs about out-groups. However, it also found that informing people of inaccuracies reduces those negative be...
Preprint
Economic inequality is associated with extreme rates of temporal discounting, which is a behavioral pattern where individuals choose smaller, immediate financial gains over larger, delayed gains. Such patterns may feed into rising global inequality, yet it is unclear if they are a function of choice preferences or norms, or rather absence of suffic...
Preprint
Full-text available
SARS-CoV-2 (COVID-19) pandemic has spread rapidly worldwide with life-changing consequences. and affecting anxiety, misconceptions, knowledge, and individuals’ behavioral health intentions, which is related to COVID-19 prevention practices adherence. Thus, it is relevant to develop psychometric measures for COVID-19 anxiety, misconceptions, knowled...
Chapter
Full-text available
The present study examines the question of whether certain humor styles predict self-esteem. Men and women in 15 countries (NTOTAL = 4,701) completed self-report measures assessing self-esteem and the four humor styles of affiliative, aggressive, self-defeating, and self-enhancing. Each of the country samples had self-esteem averages at or above th...
Article
Full-text available
The COVID-19 pandemic has increased negative emotions and decreased positive emotions globally. Left unchecked, these emotional changes might have a wide array of adverse impacts. To reduce negative emotions and increase positive emotions, we tested the effectiveness of reappraisal, an emotion-regulation strategy that modifies how one thinks about...
Article
Full-text available
The COVID-19 pandemic has increased negative emotions and decreased positive emotions globally. Left unchecked, these emotional changes might have a wide array of adverse impacts. To reduce negative emotions and increase positive emotions, we tested the effectiveness of reappraisal, an emotion-regulation strategy that modifies how one thinks about...
Article
Full-text available
The COVID-19 pandemic has increased negative emotions and decreased positive emotions globally. Left unchecked, these emotional changes might have a wide array of adverse impacts. To reduce negative emotions and increase positive emotions, we tested the effectiveness of reappraisal, an emotion-regulation strategy that modifies how one thinks about...
Article
The COVID-19 pandemic shined a light on mental health care and led to a deepening of the study of people's consumption habits. Individuals to dampen negative emotions experienced in crisis and to try to feel in control of their lives engaged in excessive buying. When we analyzed the predictive power of anxiety, depression, and stress over excessive...
Article
Full-text available
In view of the pandemic scenario caused by the new coronavirus, it is crucial to produce knowledge to understand the disease and its impacts on people's daily lives. In response to this demand, the present study aimed to identify the meanings attributed to the new coronavirus by Brazilians at the beginning of the COVID-19 pandemic. We had access to...
Article
Full-text available
Pornography consumption is increasing. Nevertheless, in Portugal, research is scarce, namely its relationship with psychosocial variables. We investigated the relation between human values and attitudes toward pornography consumption. Values were measured through the Basic Values Survey and attitudes toward pornography consumption were assessed wit...
Article
Full-text available
The COVIDiSTRESS global survey collects data on early human responses to the 2020 COVID-19 pandemic from 173 429 respondents in 48 countries. The open science study was co-designed by an international consortium of researchers to investigate how psychological responses differ across countries and cultures, and how this has impacted behaviour, copin...
Article
Full-text available
Climate change threatens mental health via increasing exposure to the social and economic disruptions created by extreme weather and large-scale climatic events, as well as through the anxiety associated with recognising the existential threat posed by the climate crisis. Considering the growing levels of climate change awareness across the world,...
Article
Full-text available
The COVIDiSTRESS global survey collects data on early human responses to the 2020 COVID-19 pandemic from 173 429 respondents in 48 countries. The open science study was co-designed by an international consortium of researchers to investigate how psychological responses differ across countries and cultures, and how this has impacted behaviour, copin...
Preprint
Full-text available
The COVIDiSTRESS global survey collects data on early human responses to the 2020 COVID-19 pandemic from 173,429 respondents in 48 countries. The open science study was co-designed by an international consortium of researchers to investigate how psychological responses differ across countries and cultures, and how this has impacted behaviour, copin...
Article
Full-text available
This N = 173,426 social science dataset was collected through the collaborative COVIDiSTRESS Global Survey-an open science effort to improve understanding of the human experiences of the 2020 COVID-19 pandemic between 30th March and 30th May, 2020. The dataset allows a cross-cultural study of psychological and behavioural responses to the Coronavir...
Article
Full-text available
Over the past 10 years, Oosterhof and Todorov’s valence–dominance model has emerged as the most prominent account of how people evaluate faces on social dimensions. In this model, two dimensions (valence and dominance) underpin social judgements of faces. Because this model has primarily been developed and tested in Western regions, it is unclear w...
Article
Full-text available
Identidade social é parte do autoconceito de uma pessoa e é construída com base em características associadas a determinadas categorias sociais que o indivíduo faz parte. Atualmente, uma das mais salientes categorias de identidade social é a nacionalidade. O presente estudo apresenta uma nova medida de identificação nacional, desenvolvida para o co...
Article
Full-text available
Replication studies in psychological science sometimes fail to reproduce prior findings. If these studies use methods that are unfaithful to the original study or ineffective in eliciting the phenomenon of interest, then a failure to replicate may be a failure of the protocol rather than a challenge to the original finding. Formal pre-data-collecti...
Article
Full-text available
The present study aimed to identify the main factors that lead people to buy impulsively. 925 Portuguese participated, with an average age of 27.02 years (SD = 10.73), who answered a questionnaire online. Participants were asked to answer the question “What makes you buy on impulse?” The data were analysed through content analysis, and the response...
Conference Paper
Full-text available
Organizações jornalísticas que desejam permanecer relevantes em meio ao ruído informativo devem ouvir atentamente suas audiências. Assim, esta pesquisa teve o objetivo de examinar o que os brasileiros entendem por notícia. Um questionário foi respondido por 484 participantes, que entre outras questões, responderam à pergunta: "Para você, o que é no...
Poster
Full-text available
A Copa do mundo de Futebol FIFA é um evento onde o patriotismo se intensifica levando as pessoas a comprarem produtos para apoiar o seu país. Apesar de haver pesquisas sobre a relação entre a identidade social e a compra por impulso, poucos estudos aprofundam este processo. Como os estados emocionais são um fator relevante na compra impulsiva, send...
Poster
Full-text available
Esta pesquisa teve como objetivo validar uma escala reduzida de compra por impulso, derivada do instrumento de Rook e Fisher, para o contexto português. Participaram no estudo 613 adultos portugueses com idade média de 25.09 anos (DP = 8.45). A recolha de dados foi realizada em ambiente online usando a ferramenta SurveyMonkey. O instrumento adaptad...
Poster
Full-text available
Megaeventos esportivos como as Olimpíadas sempre são alvos de discussão sobre seus impactos na cidade-sede.Assim,este estudo teve como objetivo compreender as percepções de residentes e não residentes do Rio de Janeiro sobre os Jogos Olímpicos Rio 2016. Participaram do estudo 1208 brasileiros (766 mulheres e 442 homens, idade média=36.56 anos, DP=1...
Poster
Full-text available
Muitos estudos têm identificado fatores influenciadores da compra por impulso, mas pouco se tem pesquisado sobre o papel que a categoria do produto exerce sobre a impulsividade do consumidor. O objetivo deste estudo exploratório foi identificar variáveis (ex. sociodemográficas, personalidade, bem-estar, valores, influência social) que influenciam a...
Poster
Full-text available
Nos primeiros meses da pandemia de COVID-19, alguns comportamentos de compra foram observados. Entre eles, a compra em excesso, como possível mecanismo de enfrentamento durante a crise. Este estudo teve como objetivo verificar propriedades psicométricas de um instrumento criado para aferir o comportamento de comprar excessivamente como estratégia d...
Preprint
A pervading global narrative suggests that political polarisation is increasing in the US and around the world. Beliefs in increased polarisation impact individual and group behaviours regardless of whether they are accurate or not. One driver of polarisation are beliefs about how members of the out-group perceive us, known as group meta-perception...
Article
Full-text available
Fear is a powerful driver of human behavior, even more during times of crisis. Panic buying occurs when fear and panic influence behavior leading people to buy more things than usual. So far, no specific scale on this has been found in the major databases, thus the aim of this exploratory study is to develop a Panic Buying Scale (PBS) during COVID-...
Article
Full-text available
Risen and Gilovich (2008) found that subjects believed that “tempting fate” would be punished with ironic bad outcomes (a main effect), and that this effect was magnified when subjects were under cognitive load (an interaction). A previous replication study (Frank & Mathur, 2016) that used an online implementation of the protocol on Amazon Mechanic...
Conference Paper
Full-text available
Sports mega-events are periods when the spirit of nationalism is high, leading people to buy products to express support for their country in the competition. The purpose of this correlational study is to verify which variables influence the impulse buying behavior of merchandise. 441 Brazilians participated in the study (264 women and 177 men, Mag...
Chapter
Full-text available
Introdução: O consumo de pornografia é uma realidade e tem vindo a crescer. Objetivo: O objetivo deste estudo foi compreender se os significados da pornografia são influenciados pelo género e analisar se o género está relacionado com o consumo e atitudes face à pornografia. Método: Este estudo adotou um método misto. Para conhecer os significados d...
Research
Full-text available
Fear is a powerful drive of human behavior, namely consumer behavior, even more, during time of crisis. Panic buying occurs when fear, panic, and feelings of uncertainty influence behavior leading people buying more things than usual. Based on search done at SCOPUS database, despite some researches about the topic there is no instruments for measur...
Presentation
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This project involves more than 30 researchers from 25 countries in more than 15 languages. This is a brief presentation highlighting current phase of data collection with the measures we've been using and overall data collection sites and expected sample sizes. I've also provided some brief expected results or anticipated findings. I am still Data...
Article
Full-text available
The objective of this study was to obtain evidence of validity of an instrument to measure the tendency to buy impulsively. A version adapted to Brazil of a Buying Impulsiveness Scale was applied to 1296 Brazilians from all states of the federation, with a mean age of 35.8 years (SD = 12.8). The results indicated a scale with one-factor structure,...
Conference Paper
Full-text available
O consumo de pornografia é uma realidade. Contudo, faltam estudos sobre a relação entre o consumo de pornografia e os aspetos psicossociais. Assim, objetivamos verificar se as atitudes face à pornografia medeiam a relação entre os valores e o consumo de pornografia. Participaram 665 adultos Portugueses (406 do género feminino, 253 do género masculi...
Article
Full-text available
Este estudo teve o objetivo de testar o poder preditivo dos cinco grandes fatores de personalidade, da influência interpessoal e de variáveis sociodemográficas sobre a compra por impulso. Participaram do estudo 1.296 brasileiros, média de idade de 35,8 anos (DP = 12,8), escolaridade mínima de Ensino Médio incompleto. Os resultados mostraram relaçõe...
Article
Full-text available
Responses to a measure of the four humor styles of affiliative, aggressive, self-enhancing, and self-defeating from the Humor Styles Questionnaire (HSQ; Martin et al. Journal of Research in Personality, 37(1), 48–75, 2003) were collected from individuals (N = 8361) in 28 countries encompassing 21 different languages. The purpose of this global coll...
Article
Full-text available
La relación entre el prejuicio y la discriminación es un fenómeno complejo porque implica un proceso de legitimación basado en la percepción de amenaza. El pre-sente artículo analiza cómo ocurre este fenómeno contra diferentes grupos de inmigrantes en Brasil. Participaron 386 brasileños con edad media de 26 años (DT = 13). Se ha evaluado el prejuic...
Preprint
Full-text available
Over the last ten years, Oosterhof and Todorov’s valence-dominance model has emerged as the most prominent account of how people evaluate faces on social dimensions. In this model, two dimensions (valence and dominance) underpin social judgments of faces. Because this model has primarily been developed and tested in Western regions, it is unclear w...
Article
Full-text available
The aim of this study is to adapt the multidimensional in-group identification scale (MGIS) to the Brazilian context by gathering evidence of its psychometric properties. A total of 663 people from two samples participated in the study. In sample 1, we measured the identification of Brazilians with the region of the country where they live. In samp...
Conference Paper
Full-text available
The consumption of pornography is increasingly common. Literature has focused, mostly, on its negative effects. This study, with a different approach, aimed to know the relation between Basic Human Values and attitudes towards pornography. Participated 665 Portuguese adults, mostly female (N = 406). The participants’ average age was 25.7 (SD = 8.85...
Preprint
Replications in psychological science sometimes fail to reproduce prior findings. If replications use methods that are unfaithful to the original study or ineffective in eliciting the phenomenon of interest, then a failure to replicate may be a failure of the protocol rather than a challenge to the original finding. Formal pre-data collection peer...
Conference Paper
Mesa Redonda “A ciência do Humor: Avanços teóricos e adaptação de instrumento para um contexto brasileiro” Proponente/Mediadora: Sibele D. de Aquino Área Temática: Psicologia Positiva Expositores: Thainá Ferraz (apresentação 1), Gabriel Caumo (apresentação 2), Sibele Aquino (apresentação 3) Instituição: Pontifícia Universidade Católica do Rio de Ja...
Article
Full-text available
This study aimed to identify the social representations of sports for Brazilian athletes with disabilities and to understand the extent to which sports can contribute to their empowerment. A total of 153 Brazilian athletes of various sports and with different types of disabilities took part in the study (122 men and 31 women, M = 31.91 years; SD =...
Preprint
Full-text available
Much research on moral judgment is centered on moral dilemmas in which deontological perspectives (i.e., emphasizing rules, individual rights and duties) are in conflict with utilitarian judgements (i.e., following the greater good defined through consequences). A central finding of this field Greene et al. showed that psychological and situational...
Preprint
Full-text available
Versão em português (BR) de manuscrito original em inglês, a ser publicado na Revista PSICOUSF. ............................................................................................................................. Resumo - O objetivo deste estudo foi buscar evidências de validade de um instrumento para aferir a tendência de comprar impulsi...
Article
Full-text available
We conducted preregistered replications of 28 classic and contemporary published findings, with protocols that were peer reviewed in advance, to examine variation in effect magnitudes across samples and settings. Each protocol was administered to approximately half of 125 samples that comprised 15,305 participants from 36 countries and territories....
Preprint
Full-text available
We conducted preregistered replications of 28 classic and contemporary published findings with protocols that were peer reviewed in advance to examine variation in effect magnitudes across sample and setting. Each protocol was administered to approximately half of 125 samples and 15,305 total participants from 36 countries and territories. Using co...
Article
We conducted preregistered replications of 28 classic and contemporary published findings, with protocols that were peer reviewed in advance, to examine variation in effect magnitudes across samples and settings. Each protocol was administered to approximately half of 125 samples that comprised 15,305 participants from 36 countries and territories....
Poster
Full-text available
O presente estudo teve como objetivo identificar os objetivos e metas relacionados ao esporte de paratletas brasileiros. Participaram deste estudo 153 paratletas brasileiros (31 mulheres e 122 homens, idade média igual a 31,9 anos). Os participantes, por meio de um questionário online, foram solicitados a indicar quais eram os três principais objet...
Poster
Full-text available
Essa pesquisa teve como objetivo refinar a escala de compra por impulso de Rook e Fisher. A amostra foi composta por 1173 pessoas de todos os estados brasileiros, média de idade de 24.7 anos (DP = 12.7), 87.3% possuem, pelo menos, Ensino Superior completo. Três estudos foram conduzidos na presente pesquisa. No primeiro (N = 581), foi realizada uma...
Article
Full-text available
Which is more enjoyable: trying to think enjoyable thoughts or doing everyday solitary activities? Wilson et al. (2014) found that American participants much preferred solitary everyday activities, such as reading or watching TV, to thinking for pleasure. To see whether this preference generalized outside of the United States, we replicated the stu...
Article
Full-text available
Resumo: Este estudo exploratório teve como objetivo (1) Avaliar variáveis psicossociais de atletas paralímpicos brasileiros; (2) Verificar como estas variáveis se relacionam com a identidade social do atleta; e (3) Compreender como os atletas paralímpicos percebem sua identidade. Participaram do estudo 153 paratletas brasileiros (122 homens e 31 mu...