Truth table tasks: Irrelevance and cognitive ability

Two types of truth table task are used to examine people's mental representation of conditionals. In two within-participants experiments, participants either receive the same task-type twice (Experiment 1) or are presented successively with both a possibilities task and a truth task (Experiment 2). Experiment 3 examines how people interpret the three-option possibilities task and whether they have a clear understanding of it. The present study aims to examine, for both task-types, how participants' cognitive ability relates to the classification of the truth table cases as irrelevant, and their consistency in doing so. Looking at the answer patterns, participants' cognitive ability influences their classification of the truth table cases: A positive correlation exists between cognitive ability and the number of false-antecedent cases classified as “irrelevant”, both in the possibilities task and the truth task. This favours a suppositional representation of conditionals.     

Credo Unam Sanctam Ecclesiam: The Relationship between the Catholic and the Protestant Principles in Fundamental Ecclesiology

Abstract

This article treats of characteristically Catholic and Protestant ecclesial principles and reflects on Anglicanism within this context. Where the Catholic ‘principle’ is concerned for the structural unity of the Church, the Protestant ‘principle’ focuses on the Church as a dynamic, Spirit-given reality. In turn, Anglican comprehensiveness is assumed to reflect the concern to achieve a harmonious balance between these principles. Having traced key developments that brought Catholic and Protestant principles into creative relationship in the 20th century and more recent developments, that threaten once again to oppose them, this article argues – through reflection on the unity and holiness of the Church – for their necessary interrelationship and concludes that realising this in practice represents the central ecumenical challenge of our age. En route, attention falls on the relationship between the local and the universal Church, on the importance of keeping communion with the breadth of the tradition and on the doxological dimension of ecumenism.