Pål Ulleberg

• PhD
• Professor (Associate) at University of Oslo

Introduction Shared automated vehicles (SAVs) could significantly enhance public transport by addressing urban mobility challenges. However, public acceptance of SAVs remains under-studied, particularly regarding how informational factors and individual personality traits influence acceptance. Methods This study explores SAV acceptance using data...

The primary aim of this study was to develop an accurate measure of acceptance for shared autonomous vehicles (SAVs) and to assess whether this measure can predict intentions to use SAVs. One leading model for explaining technology uptake is the UTAUT (Unified theory of acceptance and use of technology). This model is extensive and has received num...

This study investigates acceptance of shared autonomous shuttles (SASs) in a suburban area. A model where contextual variables were mediated through trust in SASs and technology optimism was tested. We examined intentions to use SASs without a steward and the significance of social distancing. Data were collected at the start and end of a 2020–2021...

Objective: This study evaluated the impact of the number of days per week working from home (WFH) on employee loneliness during and 2 years after the COVID-19 lockdown, with a focus on role overload as a mediating factor and social support from coworkers as a moderating variable. Methods: Data were collected via self-reports from a sample of 6,918...

Shared autonomous shuttles (SASs) could improve the mobility infrastructure in the worlds' growing cities. This novel service could reduce congestion and improve sustainability, while making public transport more available. To facilitate the implementation of SASs, more research is needed on the psychological aspects of sharing a small, intimate sh...

If autonomous vehicles are to have beneficial impacts on society, people must be willing to use them in their everyday lives. Many studies have engaged in questions regarding the technology of automation and how drivers will interact with it. However, little research has focused on the social situation arising from small shared autonomous shuttles...

The technology behind shared autonomous vehicles (SAVs) is developing rapidly and may revolutionize public transport in metropolitan areas. To take full advantage of the potential benefits, it is paramount to understand the public acceptance of this new technology. One of the leading models for explaining technology uptake is the UTAUT (Unified the...

The “Driver 65+” course is a voluntary refresher course offered to all drivers aged 65 years or older in Norway. The current study estimated differences in at-fault motor vehicle collisions (MVCs) between older drivers who had attended in the course and older drivers who had not attended the course. Methods Two samples of drivers were selected fro...

Background Vast sums are distributed based on grant peer review, but studies show that interrater reliability is often low. In this study, we tested the effect of receiving two short individual feedback reports compared to one short general feedback report on the agreement between reviewers. Methods A total of 42 reviewers at the Norwegian Foundat...

Background The present study followed a group of patients over a two-year period after they had received a cognitive behavioral psychoeducational intervention targeting patients’ ability to cope with depression. The main aims were to examine whether a change in both depressive symptoms and in the perceived control of depression occurred and the rel...

Background Vast sums are distributed based on grant peer review, but studies show that interrater reliability is often low. In this study, we tested the effect of receiving a short individual feedback report compared to a short general feedback report on the agreement between reviewers.MethodsA total of 42 reviewers at the Norwegian Foundation Dam...

Purpose The purpose of this study is to better understand the consequences of trust between personnel at different hierarchical levels for organizational effectiveness. The authors aim to explore the direct effects and the interaction effects of trust with organizational structure and processes. The study focuses on military organizations and expan...

There is a need for treatments targeting neurocognitive dysfunctions in schizophrenia. The aim of this study was to investigate the neurocognitive effect of aerobic high-intensity interval training (HIIT). A comparison group performed sport simulating active video gaming (AVG). We anticipated that HIIT would improve neurocognition beyond any effect...

Background Studies on the efficiency and efficacy of aerobic exercise (AE) as a neurocognitive intervention in schizophrenia are promising, but there is a need for larger and well-designed randomized controlled trials (RCT) to draw more certain conclusions. The aim of this RCT was to study the effect of high-intensity interval training (HIIT), on n...

Background Universities around the world are facing an epidemic of mental distress among their students. The problem is truly a public health issue, affecting many and with serious consequences. The global burden of disease-agenda calls for effective interventions with lasting effects that have the potential to improve the mental health of young ad...

Work zone safety from a psychological perspective has received little attention in scientific literature. Therefore, the present study aims to explore the influence of roadwork characteristics and drivers' individual differences in terms of personality traits and self-assessment of driving skills on speed preferences in a rural work zone. Eight hun...

One of the most common safety issues at work zones is high speed variation. Nevertheless, few studies have addressed psychological variables to deepen the understanding of drivers’ speed choice in work zones. The present study examined whether work zones represent a type of situation that may trigger the expression of certain personality traits res...

Aim of the study: The aim of this study is to examine the effect of yoga treatment of eating disorders (EDs). Methods: Adult females meeting the Diagnostic and Statistical Manual-IV criteria for bulimia nervosa or ED not otherwise specified (n = 30) were randomized to 11-week yoga intervention group (2 × 90 min/week) or a control group. Outcome...

Emotional dissonance, i.e., a discrepancy between required and felt emotions, has been established as a predictor of sickness absence in studies, but little is known about mechanisms that can explain this association. In order to prevent and reduce the impact of emotional dissonance on sickness absence, there is a need for greater attention to vari...

Preparing for international military collaboration includes raising knowledge about cultural differences. The differences in individualism-collectivism between countries are among the most central aspects likely to impact collaboration. However, are the differences in individualism-collectivism between countries as documented in a significant amoun...

Background: It has been suggested that alcohol problems negatively affect therapeutic interventions for depression. This study examines the patterns of change in depressive symptoms following an intervention for depression, in participants with or without comorbid unhealthy alcohol use. Methods: Depressive symptoms (BDI–II), perceived control of de...

The present study used a video-based experimental design to investigate the influence of visible roadwork activity on speed preferences at work zones. Four videos from real work zones in Norway were used. Two roadwork areas were filmed at two moments – with and without visible roadwork activity. A total of 815 drivers watched two videos and answere...

The Maslach Burnout Inventory (MBI), the most widely used operationalization of burnout, exists in two qualitatively different versions (Human Services Survey/Educators Survey and General Survey). One common concept, however, is used to characterize the measured phenomenon. The aim of the present study is to investigate two associated dimensions of...

In this study, we investigate levels of depression and levels of alcohol use as predictors of unstable attendance in a therapeutic intervention. A sample of 154 patients scoring a mean of 26 on BDI-II attended a cognitive behavioural psycho-educational group treatment – ‘Coping and relapse prevention of depression’. We investigated the influence of...

The need for increasing conceptual clarity within well-being research has been stressed by social scientists as well as policymakers and international organizations. The present study aimed to identify and compare conceptual structures of the everyday terms happiness, a good life, and satisfaction, based on a semi-stratified sample of Norwegian adu...

Well-being is a widely discussed topic in research, policy, and media. This study was aimed at examining usage patterns of core terminology related to well-being in Norwegian newspapers during the past two decades. Specifically, we investigated occurrence across time of 39 words describing well-being facets from four theoretical perspectives: affec...

The objective of this prospective one-year follow-up study was to explore the associations between self-regulatory mechanisms and neuropsychological tests as well as baseline and follow-up ratings of driver behaviour. The participants were a cohort of subjects with stroke and traumatic brain injury (TBI) who were found fit to drive after a multi-di...

Effortful control (EC) is an important concept in the research on self-regulation in children. We tested 2 alternative factor models of EC as measured by the Children's Behavior Questionnaire–Very Short Form (CBQ–VSF; Putnam & Rothbart, 2006 Putnam, S. P., & Rothbart, M. K. (2006). Development of short and very short forms of the Children's Behavio...

Effortful control (EC) is an important concept in the research on self-regulation in children. We tested 2 alternative factor models of EC as measured by the Children's Behavior Questionnaire-Very Short Form (CBQ-VSF; Putnam & Rothbart, 2006 ) in a large sample of preschoolers (N = 1,007): 1 lower order and 1 hierarchical second-order structure. Ad...

Objective The assessment of self-awareness and self-efficacy as they relate to driving after stroke and TBI is lacking in the literature where the focus has tended to be on neuropsychological testing of underlying component of cognition in predicting driving outcome. Therefore, this study aims to investigate the associations between self-rating of...

Objective: To explore whether measurements of self-regulatory mechanisms and cognition predict driving behaviour after an acquired brain injury (ABI). Design: Consecutive follow-up study. Participants: At baseline participants included 77 persons with stroke and 32 persons with a traumatic brain injury (TBI), all of whom completed a multidisci...

Treatment-seeking patients (N = 233) were recruited as they started a course of relapse prevention and coping with depression. The mean Beck depression inventory (BDI-II) score was 26 points, indicating a moderate degree of depression. The sample was recruited from different outpatient clinics and screened for alcohol-related problems with the alco...

This study explored differences in the factor structure of depressive symptoms in patients with and without alcohol abuse, and differences in the severity of depressive symptoms between the two groups. In a sample of 358 patients without alcohol problems and 167 patients with comorbid alcohol problems, confirmatory factor analysis revealed that the...

Social design feedback is a novel approach to usability evaluation where user participants are asked to comment on designs asynchronously in online ad-hoc groups. Two key features of this approach are that (1) it supports interaction between user participants and development team representatives and (2) user participants can see and respond to othe...

This study investigated the Norwegian translation of the Organizational Climate Measure developed by Patterson and colleagues. The Organizational Climate Measure is a global measure of organizational climate based on Quinn and Rohrbaugh's competing values model. The survey was administered to a Norwegian branch of an international service sector co...

“Islamophobia” has been used as an umbrella term capturing different types of religious stigma towards Muslims. However, the operationalization of the term for research purposes varies greatly, where little attention heretofore has been paid on how islamophobia affects Muslim minorities’ lives. Against this background, we aimed to develop and valid...

An internet-related survey distributed to Norwegian students explored predictors of fear-related xenophobia toward immigrants. Specifically, this study examined a new social construct called "entitativity" (i.e., the extent to which out-group members are perceived as bonded together in a cohesive or organized unit), as well as frequency of informal...

Abstract The need for psychotherapy research to understand the therapist effect has been emphasized in several studies. In a large naturalistic study (255 patients, 70 therapists), this topic was addressed using therapists' self-assessed difficulties in practice and interpersonal functioning in therapeutic work as predictors of patient outcome in t...

Objective: This study aimed to determine similarities and differences on perceived importance and perceived attainability of life goals between a clinical and non-clinical adolescent sample. Method: 244 students and 54 adolescent patients completed the Adolescent Life Goal Profile Scale (ALGPS). The ALGPS measures perceived importance and percei...

Few social psychological investigations have focused on the potential active role of the majority in integration. The present study examines the relationship between intergroup perception and majority attitudes toward the proactive integration of immigrant minorities in Norway. It assesses how and whether perceived entitativity of immigrants, endor...

Islamophobic sentiments in the Western world have gained scientific attention, particularly after the terrorist attacks of September 11, 2001. However, the effects of religious stigma on Muslim minorities’ identity formation have rarely been studied. Using structural equation modeling, this cross-sectional study examined direct and indirect effects...

Postpartum depression is a serious health issue affecting as many as 10-15 % of postpartum women. This longitudinal study aimed to explore how psychological variables such as cognitive emotion regulation strategies, breastfeeding self-efficacy (BSE), and dimensions of social support predicted postpartum depressive symptoms (Edinburgh Postnatal Depr...

Mobiliteten eller rörligheten för äldre människor är fortfarande ett område under utveckling. Det visar en VTI-studie gällande Norge, Danmark och Sverige där man har studerat äldre personers resande med personbil, kollektivtrafik, cykel, gång och i viss mån även övriga transportmedel som definieras av motoriserade rullstolar, skotrar, mopedbilar, e...

In this study we developed and psychometrically tested the Adolescent Life Goal Profile Scale (ALGPS). This scale provides a new approach to the measurements of personal goals, meaning, structure and direction in adolescent lives—a focus that falls in line with the increasing awareness of the prospects and benefits of congruent living. The objectiv...

A meta-analysis of 67 studies evaluating the effect of road safety campaigns on accidents is reported. A total of 119 results were extracted from the studies, which were reported in 12 different countries between 1975 and 2007. After allowing for publication bias and heterogeneity of effects, the weighted average effect of road safety campaigns is...

The aim of this study was to examine both executive control of verbal working memory and verbal learning as well as long-term storage function in outpatients with major depressive disorder (n = 61) compared to healthy controls (n = 92). A total of 37 patients had no co-morbid anxiety disorder, whereas 24 had a co-morbid anxiety disorder. Both patie...

The aim of this study was to explore if the divergent results regarding attentional functions in patients with mood disorders are due to selective impairments in higher level or more basic and distinctive attentional subcomponents. We compared outpatients with current major depressive disorders (MDD; n = 37) and MDD with comorbid anxiety disorder (...

This quasi-experimental study explores trust as a mediator, explaining how cultural diversity may affect team processes and outcomes in distributed ad hoc teams. Data were collected both through self-report and direct behavioral measures from a military sample. Our results demonstrate significantly lower trust in culturally heterogeneous distribute...

Background: Impaired cognitive control functions have been demonstrated in both major depression (MDD) and anxiety disorder (A), but few studies have systematically examined the impact of MDD with co-morbid A (MDDA), which is the main aim of this study. Method: We compared patients with MDD with (MDDA; n = 24) and without co-morbid A (n = 37) to a...

Worry on nine different means of transport was measured in a Norwegian sample of 853 respondents. The main aim of the study was to investigate differences in worry about accidents and worry about unpleasant incidents, and how these two sorts of worry relate to various means of transport as well as transport behavior. Factor analyses of worry about...

Internationally there has been a long debate regarding the use, and potential misuse, of coercion in psychiatry. One of the topics that has gained most attention is compulsory admissions. Only a few studies have published cross-country comparisons on the magnitude of compulsory admissions. This study presents data on voluntary and compulsory admiss...

In 2006 respondents (n=844) from Oslo and Kristiansand participated in a survey on risk perception on different travel modes. In addition, interviews with 222 persons were conducted while they were travelling on the metro or by bicycle. Results indicated that respondents worried about security issues on public transport modes, while private transpo...

An experiment was carried out to investigate 6-year olds ability to learn traffic safe behaviour by the use of a tabletop model. The main purpose of the training was to teach the children to look for safe spots to cross the road. Children from two schools in Norway (92 children all in all) were randomly divided into an experimental group and a cont...

The aim of the present paper was to examine factors that may affect the likelihood of adolescent passengers asking a driver to drive more carefully when they feel unsafe as a car passenger. The paper is based on a questionnaire survey carried out among 4397 Norwegian adolescents. The results showed that the factors influencing adolescents’ willingn...

Within psychology, different research traditions have attempted to explain individual differences in risky driving behaviour and traffic accident involvement. The present study attempts to integrate two of these research traditions, the personality trait approach and the social cognition approach, in order to understand the mechanisms underlying yo...

Two samples of six year olds (46 pupils), received training in safe road traffic behaviour, especially to look for safe spots to cross the road. Training was based on the use of a physical model (scale 1:40) representing various traffic environments. The children at both schools were tested before and after training, and compared to a control group...

Adolescents are proportionately more frequently involved in traffic accidents than are other age groups. A strategy for promoting road safety is to change the attitudes likely to influence driving behavior. However, the lack of valid and reliable instruments to measure risk-taking attitudes makes it difficult to evaluate the effects of measures aim...

The present study aimed at identifying subtypes of young drivers (N=2524) and evaluate how these responded to a traffic safety campaign. On basis of a cluster analysis of personality measures, six subtypes of young drivers were identified. The subtypes were found to differ on self-reported risky driving behaviour, attitudes towards traffic safety,...

The aim of this article is to show how job stress, physical working conditions, commitment and involvement in safety work, and attitudes towards safety and accident prevention work among employees on offshore petroleum platforms have changed from 1990 to 1994. In 1990 a self-completion questionnaire survey was carried out among personnel on offshor...

The aim of the present article is to validate the Norwegian version of the Organizational Climate Measure (OCM). The original survey was translated and back translated, and administered to a Norwegian branch of an international service sector company (n=555). A confirmatory factor analysis was conducted to investigate the fit between the present da...