Assessing the feasibility of the theory of planned behaviour in predicting drivers’ intentions to operate conditional and full automated vehicles

Guided by the Theory of Planned Behaviour (TPB), this study examined the beliefs underpinning, and feasibility of the factors in predicting, individuals’ intentions to use a conditional (Level 3) automated vehicle (AV) and a full (Level 5) AV. Australian drivers (N = 505) aged 17–81 years (Mean age = 33.69, SD = 18.79) were recruited and completed a 20 min online survey which featured both quantitative and qualitative items. For the quantitative data, two linear regressions revealed that the TPB standard constructs of attitudes, subjective norm, and perceived behavioural control (PBC) accounted for 66% of the variance in intentions to use a conditional AV and 68% of the variance in intentions to use a full AV. Of the TPB constructs, attitudes and subjective norms were significant positive predictors of future intentions to use conditional and full AVs. For the qualitative data, some differences emerged for the underlying behavioural beliefs that underpinned intentions to use conditional and full AVs. For example, having beliefs about control over the conditional AV was identified by many participants as an advantage, while not being in full control of the full AV was identified as a disadvantage. For underlying control beliefs, participants identified similar barriers for both vehicle types, including; high costs, lack of trust, lack of control over the vehicle, lack of current legislation to support the mainstream introduction of these vehicles, and concerns of safety for self and for other road users when operating AVs. Overall, these findings provide some support for applying the TPB to understand drivers’ intended use of AVs. However, while the current study showed that the constructs of attitudes and subjective norms might reflect intended use of AVs, more research is required to further examine the role of PBC. Additionally, the findings provide initial insights into the underlying behavioural and control beliefs that may motivate drivers to use AVs and highlight the similarities and differences in drivers’ perceptions towards two levels of vehicle automation.     

Prevalence and treatment of Chronic Fatigue Syndrome/Myalgic Encephalomyelitis and co-morbid severe health anxiety

Chronic Fatigue Syndrome/Myalgic Encephalomyelitis (CFS/ME) is a debilitating condition that affects 0.2–0.4% of the population. Health focussed anxiety is common across medical conditions, and may be relevant in CFS/ME. This study sought to identify the prevalence and impact of health anxiety (HA) in CFS/ME and evaluate the effectiveness of Cognitive Behavioural Therapy for HA in CFS/ME. Cross-sectional questionnaire methods and case-series design were used to achieve study aims. Analysis indicated that 41.9% of the CFS/ME clinic sample experienced threshold levels of health anxiety, which was associated with elevated symptom severity across several dimensions. Stepwise multiple regression indicated physical functioning and depression accounted for 23.8% of variance in fatigue; depression, fatigue and HA, accounted for 32.9% of variance in physical functioning. Large effect sizes and clinically significant changes were generated in the treatment study. HA is common in CFS/ME and likely to exacerbate fatigue and physical functioning. This study identifies HA as an important target for treatment, trial findings should be further replicated on a larger scale.     

Reduced approach motivation following nonreward: Extension of the BIS/BAS scales

The current study describes the development and validation of a new subscale to be used with the BIS/BAS scales (Carver & White, 1994). This subscale measures lowered approach motivation following nonreward. Factor analysis of the new subscale was carried out within a sample of 308 University students, test–retest reliability was established within a sample of 62 individuals, and construct validity was explored in a sample of 86 individuals by comparing scores on the new subscale with those on an existing self-report measure of apathy and on a behavioural measure of persistence. Reliability and validity of the new frustrative nonreward responsiveness subscale was found to be adequate within the populations studied. The findings are discussed in relation to theoretical accounts of BAS and BIS sensitivity.     

Competence,equipment and behavioural adaptation on Norwegian winter roads: A comparison of foreign and Norwegian HGV drivers

There seems to be a widespread view that foreign lorry drivers’ lack of competence on Norwegian roads, especially related to winter driving, is a significant safety problem. It has, however, been suggested that foreign heavy goods vehicle (HGV) drivers perform better than expected on Norwegian winter roads, as they feel less safe than Norwegian drivers, and adapt by driving slower and more carefully. The aim of the present paper is twofold. First, we examine whether foreign HGV drivers in Norway actually have poorer competence on, training for, experience with and equipment for winter driving than Norwegian HGV drivers. Second, we discuss whether the expected negative effect of these safety challenges is mitigated, as foreign HGV drivers adapt their behaviours. We use four data sources to shed light on the aims: (1) interviews, (2) roadside inspections, (3) small-scale survey and (4) towing incidents. Our data support the hypothesis about behavioural adaptation, indicating that foreign HGV drivers experience winter driving as more difficult or unsafe, as they have supposedly less suitable vehicles and equipment, less experience, training and competence for winter driving. They are therefore more likely to get stuck while driving uphill on winter roads, supposedly as they drive more carefully and slower than Norwegian HGV drivers. Norwegian HGV drivers feel safer and more confident while driving on winter roads, because of their equipment and their experience.     

“Pédaler en toute sécurité”: The Cycling Behavior Questionnaire (CBQ) in Belgium – A validation study

Introduction: During the last few years, the use of behavioral questionnaires for assessing risky behaviors of road users different from motor-vehicle drivers has grown considerably in applied research for road safety. In this regard, recent tools such as the Cycling Behavior Questionnaire (CBQ) are gaining ground, being adapted and tested in further languages, thus getting useful to address the case of countries whose language is different to the English and Spanish. Therefore, and in order to extend the use of the CBQ, this study aimed (i) to develop the validation of the CBQ to the French and Dutch languages, in order to cover the population of Belgian cyclists and (potentially) other countries speaking these languages, as well as (ii) to explore demographic and cycling-related differences in cycling behaviors. Methods: For this cross-sectional study, data was collected from a full sample of 1,897 adult cyclists (50.9% males; 48.7% females; 0.4% others) from various regions of Belgium, with a mean age of 41.71 years. Results: The results suggest the CBQ, in its French and Dutch versions, has a strong factor composition, fair psychometrical properties and good convergent validity. Further, gender and cycling pattern-related differences were found in regard to the three dimensions measured by the scale. Conclusion: The results of this study support the value of the Cycling Behavior Questionnaire to be used for researchers studying road cyclists’ behavior from the human factors perspective in French and Dutch-speaking countries.     

Individual differences in adult attachment: Disentangling two assessment traditions

The goal of this paper was to disentangle the contributions of type of measurement and relational domain to the lack of concordance between adult attachment measures. Eighty-six college students completed the Adult Attachment Interview (AAI) and self-reported measures of attachment security adapted to their relationships with four different relational partners. Results showed that whereas the AAI main dimensions were unrelated to self-reports relative to any partner, reports of attachment security with different partners were interrelated. Further, very few of the AAI State of Mind scales related to self-reported attachment security, but the AAI Experience scales did relate to self-reports in a theoretically consistent manner. Finally, the AAI scales of Idealization and Lack of Recall correlated positively with self-reported attachment when controlling for experiences reported on the AAI. The results suggest that a fundamental distinction between adult attachment measures could be the degree of automaticity of the constructs tapped, and that attachment self-reports may be biased by defensive information-processing strategies among dismissing individuals.     

Contextual interference processing during fast categorisations of facial expressions

We examined interference effects of emotionally associated background colours during fast valence categorisations of negative, neutral and positive expressions. According to implicitly learned colour–emotion associations, facial expressions were presented with colours that either matched the valence of these expressions or not. Experiment 1 included infrequent non-matching trials and Experiment 2 a balanced ratio of matching and non-matching trials. Besides general modulatory effects of contextual features on the processing of facial expressions, we found differential effects depending on the valance of target facial expressions. Whereas performance accuracy was mainly affected for neutral expressions, performance speed was specifically modulated by emotional expressions indicating some susceptibility of emotional expressions to contextual features. Experiment 3 used two further colour–emotion combinations, but revealed only marginal interference effects most likely due to missing colour–emotion associations. The results are discussed with respect to inherent processing demands of emotional and neutral expressions and their susceptibility to contextual interference.     

Experiences of Patients in Cognitive Behavioural Group Therapy: A Qualitative Study of Eating Disorders

The aim of this study was to investigate whether there was a difference in skin conductance response between 2 groups of military personnel when exposed to emotionally neutral and charged stimuli. The 2 groups were a combat experience group (n?=?10) with prior experience of emotionally charged war situations and a comparison group (n?=?10) with no such experience. Results showed that the comparison group reacted more strongly to exposure to both charged and neutral pictures than did the combat experience group, regardless of exposure time. The results are discussed in terms of emotional numbing and differences in anxiety state between the 2 groups.     

Theoretical Orientation and Therapists' Attitudes to Important Components of Therapy: A Study Based on the Valuable Elements in Psychotherapy Questionnaire

The authors describe the inception and subsequent testing of a questionnaire on attitudes regarding how psychotherapy ought to be pursued: the Valuable Elements in Psychotherapy Questionnaire (VEP-Q). A sample of 416 Swedish therapists (161 psychodynamic, 93 cognitive, 95 cognitive behavioral, and 67 integrative/eclectic) responded to the 17-item VEP-Q. A factor analysis of these items resulted in three subscales: PDT, CBT, and Common Factor, as validated by analyses of covariance. The internal consistency and test–retest reliability of the scales were excellent. In addition to theoretical orientation, variables such as gender and basic professional training influenced how respondents answered the VEP-Q. The authors conclude that the VEP-Q seems to be an appropriate instrument for describing similarities as well as differences among practitioners of various schools of psychotherapy.     

Herscovitch and Meyer’s Three-Component model of commitment to change: Meta-analytic findings

Commitment to change has been subject to several qualitative reviews in recent years. As a response to an associated lack of consensus in construct definition, Herscovitch and Meyer introduced a three-component model demonstrating affective commitment to change (i.e., ACC), normative commitment to change (i.e., NCC) and continuance commitment to change (i.e., CCC). Given the growing literature on organizational change, the aim of this paper is to take stock of a decade of research that uses Herscovitch and Meyer’s instrument to measure these three components. To determine the tool’s discriminant validity we conducted meta-analyses evaluating the strength of relations among ACC, NCC and CCC; the relations among the three components and behavioural support for change; and the moderating role of North American context versus non-North American context in shaping these relationships. Findings based on data collected from 17 studies indicate notable differences in the strength of relationships among ACC–NCC, ACC–CCC and NCC–CCC. Also the pattern of the correlations among the three components and behavioural support reveals interesting extensions and insights for further research into the robustness of this model, and on hitherto under-acknowledged discrepancies in behavioural support for commitment to change research.