The approximation of two-mode proximity matrices by sums of order-constrained matrices

A least-squares strategy is proposed for representing a two-mode proximity matrix as an approximate sum of a small number of matrices that satisfy certain simple order constraints on their entries. The primary class of constraints considered define Q-forms (or anti-Q-forms) for a two-mode matrix, where after suitable and separate row and column reorderings, the entries within each row and within each column are nondecreasing (or nonincreasing) to a maximum (or minimum) and thereafter nonincreasing (or nondecreasing). Several other types of order constraints are also mentioned to show how alternative structures can be considered using the same computational strategy.     

The Heritage of Ralph Wendell Burhoe for the Dialogue between Science and Theology: A German Perspective

This paper begins with some reflections on my personal experiences with Ralph Wendell Burhoe during visits to the Chicago Center for Religion and Science. I learned to know Burhoe as an interested and kind person with enormous intellectual power. In this paper I argue that integration of different concepts was the chief focus of his thinking, expressing both an ethical and a dogmatic concern. If his theory of altruism contributes to the scientific investigations into the problem of trans-kin altruism, then his vision of a scientific theology gains credibility. Such an integration is made plausible through the interpretation of altruism in light of Christian love. In fact, Burhoe's neonaturalistic approach may be a fertile resource for the dialogue between science and theology in Germany, and serve as an exemplar of Burhoe's important impact on this dialogue in general.     

Introversion-Extraversion, Self-Monitoring, and Applicant Performance in a Situational Panel Interview: A Field Study

This study investigated relationships between applicant introversion-extraversion, self-monitoring, and performance in a situational panel interview. Police officers applying for promotion to the rank of sergeant in a metropolitan police department participated in a selection interview and completed a personality questionnaire. Results showed self-monitoring moderated the relation between introversion-extraversion and interview performance. As predicted, the relationship was stronger for low self-monitors than for high self-monitors. Extraverted, high self-monitoring and introverted, low self-monitoring promotion candidates were rated highest by selection interview panelists.     

Correspondence analysis and optimal structural representations

Many well-known measures for the comparison of distinct partitions of the same set ofn objects are based on the structure of class overlap presented in the form of a contingency table (e.g., Pearson's chi-square statistic, Rand's measure, or Goodman-Kruskal'sτ _b ), but they all can be rephrased through the use of a simple cross-product index defined between the corresponding entries from twon ×n proximity matrices that provide particular a priori (numerical) codings of the within- and between-class relationships for each of the partitions. We consider the task of optimally constructing the proximity matrices characterizing the partitions (under suitable restriction) so as to maximize the cross-product measure, or equivalently, the Pearson correlation between their entries. The major result presented states that within the broad classes of matrices that are either symmetric, skew-symmetric, or completely arbitrary, optimal representations are already derivable from what is given by a simple one-dimensional correspondence analysis solution. Besides severely limiting the type of structures that might be of interest to consider for representing the proximity matrices, this result also implies that correspondence analysis beyond one dimension must always be justified from logical bases other than the optimization of a single correlational relationship between the matrices representing the two partitions.     

Towards a phenomenology of ethical expertise

This paper was presented as the Aron Gurwitsch Memorial Lecture, sponsored by the Center for Advanced Research in Phenomenology, at Duquesne University, Pittsburgh, Pennsylvania, October 1989. We would like to thank Drew Cross, David Greenbaum, Wayne Martin, Charles Spinosa, Charles Taylor and Kailey Vernallis for their helpful comments.     

Pair-relational encoding of performed nouns and verbs

Summary Subjects had to learn lists of noun pairs and verb pairs. They were informed in advance about the test types and were tested for free recall (FR) and cued recall (CR). Three classes of encoding instructions were used: standard learning instructions, item-specific enactment instructions (to perform the denoted action of the verb or a typical action for the noun, and to do the same plus finding separate goals for the two elements of each pair), and enactment instructions that were completed by explicit instructions to integrate the word pairs (find a common goal, and find a common goal plus rating your success). There was no effect of encoding instructions on FR of nouns. There was a better FR under all enactment instructions than under standard instructions for verbs. CR decreased after item-specific enactment instructions, in contrast with standard learning instructions, but more for nouns than for verbs. CR increased after the instructions to integrate the pairs, in contrast with item-specific enactment instructions, but more for nouns than for verbs. It was concluded that enactment provides excellent item-specific information that can hardly be enhanced further, and that the item-specific information provided by concrete nouns is fundamentally good and is difficult to enhance by enactment. It is further assumed that enactment not only provides excellent item-specific information, but also hinders pair integration. Therefore, CR decreases after enactment. This decrease can only be overcome when subjects actively try to integrate the word pairs.     

Static laws in a dynamic psychology?

In reply to Lamiell's (1991) criticism, we argue that his notion of nomothesis reflects a Newtonian, mechanistic notion of lawfulness and that his otherwise justified attack on the individual differences paradigm is an overreaction to an era that is dominated by this paradigm.     

Levels-of-processing effects in subject-performed tasks

In memory for subject-performed tasks (SPTs), subjects encode a list of simple action phrases (e.g., thumb through a book, knock at the door) by performing these actions during learning. In three experiments, we investigated the size of the levels-of-processing effects in SPTs as compared with those in standard verbal learning tasks (VTs). Subjects under SPT and VT conditions learned lists of action phrases in a surface or a conceptual orienting task. Under both encoding conditions, the subjects recalled fewer items with surface orienting tasks than with conceptual orienting tasks, but the levels-of-processing effects were strongly reduced in the SPT condition. In the SPT condition, items that were encoded in a surface orienting task were still substantially recalled. The items were recalled almost as well as the conceptually encoded items in the VT condition. The distinct reduction of the levels-of-processing effect is caused by the fact that, in SPT encoding even with a verbal surface orienting task, subjects process conceptual information in order to perform the denoted action. We attribute the small conceptual advantage, which remains with SPT despite the conceptual processing for performing, to the fact that items are not as well integrated into memory as they are when conceptual processing is focused on the action component, rather than on the semantic contexts. This lower integration reduces the accessibility of items in the verbal surface task, even with SPT encoding.     

Applications of combinatorial programming to data analysis: The traveling salesman and related problems

The Traveling Salesman and similar combinatorial programming tasks encountered in operations research are discussed as possible data analysis models in psychology, for example, in developmental scaling, Guttman scaling, profile smoothing, and data array clustering. In addition, a short overview of the various computational approaches from this area of combinatorial optimization is included.The research of the first author was supported by a research grant SOC-75-07860 from the National Science Foundation.     

Samuel Todes's Account of Non–conceptual Perceptual Knowledge and its Relation to Thought

Samuel Todes's book, Body and World , makes an important contribution to the current debate among analytic philosophers concerning non–conceptual intentional content and its relation to thought. Todes's relevant theses are: (1) Our unified, active body, in moving to meet our needs, generates a unified, spatio–temporal field. (2) In that field we use our perceptual skills to make the determinable perceptual objects that show up relatively determinate. (3) Once we have made the objects of practical perception determinate, we can make 'practical perceptual judgements' about them. Such 'judgements' have conditions of satisfaction, but they are non–conceptual in that they are a way of coping with an actual object in this situation, from this point of view, in this light, in this orientation, and so forth. (4) By withholding our activity, however, we can transform our practical perception into a detached, spectatorial perception of qualities that are experienced as independent of the object they qualify. (5) Thanks to our conceptual imagination, we can then treat these qualities as reidentifiable properties of reidentifiable objects that can be entertained by thought.