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The role of evidence-based psychological knowledge in cases of juvenile offending is essential to make appropriate decisions relating to youth who violate legal or social norms, as it carries implications for treatment, intervention and practice. Psychological expert opinions therefore need to meet high formal and methodological requirements while maintaining ethical standards. The purpose of this study is to investigate psychological expert opinions in cases of juvenile misbehavior reported to regional courts in Poland. Juvenile court proceedings concern cases of demoralization and/or delinquent offenses. Demoralization is a legal concept described in the Act of June 9, 2022 on juvenile support and resocialization. This concept was not defined; it was only described through examples of behaviors indicating demoralization. These include the following: violations of the principles of community life; evading compulsory education or schooling; use of alcohol, narcotic drugs, psychotropic substances, their precursors, substitutes or new psychoactive substances; and prostitution.

To reach these goals, court records of juvenile cases in six district courts (N = 253) were gathered and analyzed. A semistructured questionnaire was used to examine the cases in which psychologists were appointed and to analyze the procedures used by these experts for assessing adolescents and their families.

Findings revealed that family judges appoint psychologists both in cases of “demoralization” (i.e. status offenses) and in cases of juvenile delinquency. The opinions were delivered by psychologists who were mostly members of diagnostic teams. Results indicate that such opinions generally comply with the minimal standards recommended by the Ministry of Justice, yet a few problems were observed with the determination of levels of demoralization.

The limitations of diagnostic tools used by psychologists are discussed, and recommendations for future practice are provided.

This paper aims to investigate the influence of consumption situation on the use of extrinsic cues, such as price and expert opinion, in the assessment of different types of risk associated to purchase decisions.

An experimental design was conducted in a sample of 128 postgraduate students, using red wine as product category. The experiment manipulated consumption situation, price, and expert opinion about the product. Different types of risks associated with the purchase decision and purchase intention were then measured.

Results suggest that consumption situation affects the use of price in the assessment of performance risk, but only in the case of negative expert opinion about the products. Additionally, expert opinion demonstrated to have a strong effect reducing performance risk and increasing intention to buy.

The main limitations of the present research are associated with the exploratory and inconclusive characteristic of the performed mediation tests, and the use of just one product category in the research. Future research should replicate the study in other product categories and include other types of extrinsic cues.

Managers should consider the complex effects of price on the assessment of risks related with a purchase, and the effect of consumption situation on the process. In addition, managers should use positive expert opinions in advertising and point‐of‐purchase material.

The study analyzes the influence of consumption situation on consumers' use of different extrinsic cues to assess risks associated with the purchase of uncertain quality products.

The purpose of this study is to investigate the relevance of expert opinions as a marketing tool for Pinotage amongst young South African student millennials by means of sensory hedonic testing.

Sensory hedonic testing was used because it is necessary to examine the extent to which extrinsic cues influence a wine’s intrinsic merit, as this can influence future purchase decisions. Thus, it combines marketing factors and sensory science and explores the sensory liking of food products by consumers. A total of 126 South African student millennial consumers were analysed.

The results confirm that expert opinions are an effective marketing tool. While positive expert opinions did not reinforce perceived quality for already generally liked wines, they increased perceived quality for wines that were not liked. Female student millennials specifically seem to be influenced by expert opinions and packaging, even though they show a relative dislike for Pinotage under blind tasting. These results are useful in the design of marketing strategies.

Because of the chosen research approach, it may be difficult to generalize the research results. However, future research could apply this methodology to investigate the perceived quality of wine and other food products in different countries. Furthermore, replicating this study could provide interesting comparative results.

Little is known about the liking for Pinotage wines by young South African consumers or about the cues that make them respond positively to marketing.

This paper aims to examine the way in which consumers integrate experts' opinions into their own evaluations of a selection of red wines.

The authors conduct an experiment to measure the influence of experts' opinions in relation to the complexity of the information, the level of consensus between different experts, and the consumer's level of category knowledge.

Confirmation is found for the effect of received information on consumers' product evaluations. Variation is found in relation to the consumer's level of category knowledge. Expert ratings have a stronger influence on individuals with low knowledge of the wine category than on those with high knowledge. The level of consensus between experts and the complexity of the information in this case have no effect on the impact of their opinions.

This paper takes a deeper look into the effect of “weak‐tie” personal information sources, particularly the opinions of experts regarding wine. Scientific research into the effect of expert judgments on consumer perceptions is still scant and businesses also need to assess the factors underlying its impact, given that the influence of expert judgment can be as crucial as quality to a product's success. The main feature that distinguishes this paper from the previous literature is that it integrates all three moderating effects in a single experiment: level of expert consensus, the complexity of the information provided and the prior knowledge of the consumer.

Most decision-making problems in construction are complex and difficult to solve, as they involve multiple criteria and multiple decision makers in addition to subjective uncertainties, imprecisions and vagueness surrounding the decision-making process. In many instances, the decision-making process is based on linguistic terms rather than numerical values. Hence, structured fuzzy consensus-reaching processes and fuzzy aggregation methods are instrumental in multi-criteria group decision-making (MCGDM) problems for capturing the point of view of a group of experts. This chapter outlines different fuzzy consensus-reaching processes and fuzzy aggregation methods. It presents the background of the basic theory and formulation of these processes and methods, as well as numerical examples that illustrate their theory and formulation. Application areas of fuzzy consensus reaching and fuzzy aggregation in the construction domain are identified, and an overview of previously developed frameworks for fuzzy consensus reaching and fuzzy aggregation is provided. Finally, areas for future work are presented that highlight emerging trends and the imminent needs of fuzzy consensus reaching and fuzzy aggregation in the construction domain.

To explain and empirically test how different marketing communication channels interact with each other and contribute to brands’ diverging marketplace performance.

With a unique data set combining key variables of major passenger car brands, the paper takes a source-based perspective to investigate how firm-based communications, expert opinions and online consumer reviews interact and affect brands’ marketplace performance. Then the paper studies the three special boundary conditions under which online consumer reviews’ influence varies in competition with the other two established information sources. Lastly, a study was done to demonstrate the financial significance of investing in different information sources.

The results show that online consumer reviews mitigate the effectiveness of the other two information sources in driving brand sales. This mitigation effect is also magnified when the brand is weak, firm-based communications are modest and expert opinions are less favorable. The findings further suggest that in the emerging communication enterprise, firm-based and expert-based communications remain the core while user-based communication plays an indispensable competing and complementary role.

In the new digital era, firms are facing the daunting task of understanding and integrating multiple communication channels. The study provides important implications for both researchers and practitioners with respect to brand management and integrated communications.

Existing studies have demonstrated that each of the three communication efforts (by firms, experts and consumers) exerts a significant influence on product sales, but few studies have been conducted in settings marked by the coexistence of these efforts. In addition, the three communication efforts are likely to have different effects on brands with different market positions. The current study is contributing to the literature by filling the above gaps.

A good recommender system helps users find items of interest on the web and can provide recommendations based on user preferences. In contrast to automatic technology‐generated recommender systems, this paper aims to use dynamic expert groups that are automatically formed to recommend domain‐specific documents for general users. In addition, it aims to test several effectiveness measures of rank order to determine if the top‐ranked lists recommended by the experts were reliable.

In the approach, expert groups evaluate web documents to provide a recommender system for general users. The authority and make‐up of the expert group are adjusted through user feedback. The system also uses various measures to gauge the difference between the opinions of experts and those of general users to improve the evaluation effectiveness.

The proposed system is efficient when there is major support from experts and general users. The recommender system is especially effective where there is a limited amount of evaluation data from general users.

This is an original study of how to effectively recommend web documents to users based on the opinions of human experts. Simulation results were provided to show the effectiveness of the dynamic expert group for recommender systems.

This paper addresses the performance, training and organisation of expert valuation witnesses in the UK. Previous research, based on analysis of professional negligence cases in the UK courts, had found that expert valuation witnesses do not always perform rationally, for example informing courts that valuations can be undertaken within acceptable tolerances of valuation accuracy, while giving expert evidence that differed by more than these tolerances. There was evidence that, while well aware of their overriding duty to the court or tribunal, expert witnesses were frequently producing client‐biased valuations. Such findings provoked questions as to whether standards would be improved by two recently proposed alterations to current practice: either the introduction of a system of compulsory training and accreditation for such witnesses, or a change from the process by which expert valuation evidence is normally presented (one expert witness for each party to a dispute) to the use of a single expert, appointed either by the parties jointly or by the court. A case analysis is performed and conclusions discussed.

Expert evidence is a contentious area with a number of high profile cases highlighting unreliable “scientific” expert evidence, leading to appeals and acquittals. The purpose of this paper is to argue for improvement in the assessment of expert evidence reliability to avoid such difficulties.

A review of the area focused on the history of developing legal criteria for admitting “scientific” evidence. It examined the benefits and difficulties of approaches, and proposes an amendment to criteria for increased transparency and evidenced decision making.

The review indicated a range of difficulties with “expert” evidence admissibility, including inconsistency, an over-focus on narrow elements of evidence, difficulties in interpretation, and the potential to unfairly restrict evidence. An alternative to current approaches is proposed. This takes the form of a two-stage approach to consider whether or not to admit expert evidence. It comprises a preparation and an examination stage. The former seeks to critically review the evidence and define its nature. The latter applies two sets of criteria; a Daubert application for generally accepted physical sciences, and proposes an Abridged-Daubert for novel and social/behavioural sciences. Also proposed is increased involvement by experts in critically reviewing their own evidence and in providing statements of limitations.

The paper concludes by outlining the importance of developing such an approach for the UK legal system. It focuses on the application of specific criterion which could assist both Courts and witnesses to evaluate the quality of evidence prior to submission by accounting for the nature of the opinion evidence provided.

The paper outlines a practical approach to examining evidence which has benefit to practitioners and advocates when opinion evidence is outlined.

The economic effects resulting from the commitment to ISO 9001 certification is a controversial issue. Many authors have concluded about the positive economic effects resulting from the establishment of quality systems in accordance with the requirements established in the ISO 9001 standard, but other authors have not appreciated this positive relationship. The purpose of this paper is to provide a model that facilitates the valuation of the ISO 9001 quality system.

In the process of developing a valuation model, given the uncertainty this process involves, the use of fuzzy math is very useful. First, as for an internal valuation method, the authors highlight the discounted cash flow in a fuzzy environment. The internal valuation will be completed by external expert opinions. To improve the information supplied by experts, the paper makes use of the experton theory. In this context, the authors propose the aggregation of the experts’ opinion by using basic defuzzification distribution (BADD)-fuzzy induced ordered weighted averaging. Finally, the results undergo contra-expertise. After presenting the theoretical model, the authors proceed with its application by using a case study.

The paper develops a new method for the economic evaluation of the ISO 9001 certification.

The authors propose the valuation of ISO 9001 quality management system, and they do it using some interesting tools which fuzzy logic offers. In this way, it is possible to eliminate subjectivity and improve the final results.