Error-statistical elimination of alternative hypotheses

I consider the error-statistical account as both a theory of evidence and as a theory of inference. I seek to show how inferences regarding the truth of hypotheses can be upheld by avoiding a certain kind of alternative hypothesis problem. In addition to the testing of assumptions behind the experimental model, I discuss the role of judgments of implausibility. A benefit of my analysis is that it reveals a continuity in the application of error-statistical assessment to low-level empirical hypotheses and highly general theoretical principles. This last point is illustrated with a brief sketch of the issues involved in the parametric framework analysis of tests of physical theories such as General Relativity and of fundamental physical principles such as the Einstein Equivalence Principle.     

Ultimacy and alternative possibilities

I explore a key feature of Robert Kane’s libertarianism (about which I have been puzzled for some time). Kane claims that we should separate issues of alternative possibilities from issues of ultimacy, but he further argues that they are connected in a certain way. I call into question this connection, and I continue to argue for a strict separation of considerations pertaining to alternative possibilities and “actual-sequence” considerations.

What kinds of alternative possibilities are required of the folk concept(s) of choice?

Our concept of choice is integral to the way we understand others and ourselves, especially when considering ourselves as free and responsible agents. Despite the importance of this concept, there has been little empirical work on it. In this paper we report four experiments that provide evidence for two concepts of choice—namely, a concept of choice that is operative in the phrase having a choice and another that is operative in the phrase making a choice. The experiments indicate that the two concepts of choice can be differentiated from each other on the basis of the kind of alternatives to which each is sensitive. The results indicate that the folk concept of choice is more nuanced than has been assumed. This new, empirically informed understanding of the folk concept of choice has important implications for debates concerning free will, responsibility, and other debates spanning psychology and philosophy.     

Voluntary sector counselling: Has inadequate research resulted in a misunderstood and underutilised resource?

Although much counselling already takes place in the voluntary sector, little is known about the nature of the work being done or about its effectiveness or the training and experience of its practitioners. Given the gap between the demand for and supply of psychological therapies in Britain today, lack of research into the effectiveness of this work could mean that a valuable resource is being under‐utilised. This paper describes a study of a large, generic counselling centre and, using the CORE monitoring and evaluation system, makes comparisons between its work and that of a number of NHS psychological therapy services. It shows; that it is of at least as complex or severe a nature; and that it is as effective. It also shows that the therapy carried out in this agency is done by appropriately qualified and experienced practitioners.     

Reanalysis of Eysenck’s,Gray’s,and Zuckerman’s structural trait models based on a new measure: The Zuckerman–Kuhlman–Aluja Personality Questionnaire (ZKA-PQ)

The aim of this study was to explore the relationships of the dimensions and facets of the Zuckerman–Kuhlman–Aluja Personality Questionnaire (ZKA-PQ) with other psychobiological personality measures: the EPQ-RS (Eysenck Personality Questionnaire Revised, shortened version), I₇ (Impulsiveness Questionnaire) and SPSRQ-20 (Sensitivity to Punishment and Sensitivity to Reward Questionnaire, 20-item version). It is intended to test if findings reported with Zuckerman’s previous instrument (ZK-PQ) about the relationships between the three biologic-factorial personality models are replicated, giving evidence about the validity of the ZKA-PQ. The sample analyzed was of 584 subjects (50.3% men and 49.7% women) from the Spanish general population. Correlational and factor analysis supported the expected relationships between similar constructs assessed by the ZKA-PQ and the other questionnaires based on Eysenck’s and Gray’s personality theories. On the other hand, the inclusion of the facets from the ZKA-PQ improved the validity of the questionnaire. Findings were discussed in the framework of the biological personality models, emphasizing the contribution of the ZKA-PQ to the psychobiological personality research.     

The robustness of the factor structure of the Self-Restraint Scale: What does self-restraint encompass?

In contrast with the original version of the Self-Restraint Scale (SRS; [Weinberger, D.A., & Schwartz, G.E. (1990). Distress and restraint as superordinate dimensions of self-reported adjustment: A typological perspective. Journal of Personality, 58, 381–417]), confirmatory factor analysis did not support a four-factor solution. In the current study an exploratory factor analysis revealed a three-factor structure. Although the original subscales suppression of aggression, consideration of others, and impulse control were confirmed by the data, responsibility did not fit within the overall concept of self-restraint. These results provide some indication that although the subscales can be used independently, the way self-restraint is conceptualized should be reconsidered. Future studies are needed to confirm the factor structure observed in the current study.