Sex Differences in Furniture Assembly Performance: An Experimental Study

This study examined sex differences in furniture assembly performance by manipulating the availability of instructions. Two groups of participants with an equal number of men and women assembled a kitchen trolley from IKEA. One group received step‐by‐step instructions, and the other group a diagram of the finished product. In addition, individual spatial ability was measured with the mental rotation test (MRT) and added to the analyses. Our results showed that men assembled the furniture faster (d = 0.78) and more accurately (d = 0.65) than women. Overall, participants performed better with step‐by‐step instructions than without (d = 0.61), and the time spent on instructions was negatively related to MRT scores, r = ?.428, p = .006. Aside from the time spent on instructions, women assembled the furniture nearly as fast as men did, and the sex difference in assembly score could be explained by differences in individual spatial ability. Copyright © 2015 John Wiley & Sons, Ltd.     

Term-Modal Logics

Many powerful logics exist today for reasoning about multi-agent systems, but in most of these it is hard to reason about an infinite or indeterminate number of agents. Also the naming schemes used in the logics often lack expressiveness to name agents in an intuitive way.To obtain a more expressive language for multi-agent reasoning and a better naming scheme for agents, we introduce a family of logics called term-modal logics. A main feature of our logics is the use of modal operators indexed by the terms of the logics. Thus, one can quantify over variables occurring in modal operators. In term-modal logics agents can be represented by terms, and knowledge of agents is expressed with formulas within the scope of modal operators.This gives us a flexible and uniform language for reasoning about the agents themselves and their knowledge. This article gives examples of the expressiveness of the languages and provides sequent-style and tableau-based proof systems for the logics. Furthermore we give proofs of soundness and completeness with respect to the possible world semantics.     

Case Matching and Relative Clause Attachment

Two accounts of relative clause attachment will be discussed, the case-matching hypothesis proposed by Sauerland and Gibson (1998) and the attachment-binding dualism (Hemforth et al., in press a, b). While the case-matching hypothesis predicts that relative clauses are preferentially attached to NPs whose case matches that of the relative pronoun, attachment binding predicts that NPs are preferentially attached to the most salient host, that is NP1 in constructions with two NPs. We conducted two off-line studies, one sentence completion task and one magnitude estimation experiment using subject (nominative pronoun) and object (accusative pronoun) relative clauses that can be attached to either of the two nouns in a complex subject (NP1 = nominative, NP2 = genitive) or object NP (NP1 = accusative, NP2 = genitive). While attachment binding predicts an across-the-board NP1 preference, the case-matching hypothesis predicts an NP1 prefence only in the case of subject (object) NPs followed by subject (object) relative clauses. The results of both experiments provide evidence for attachment binding and against case matching.     

Recall of enacted and nonenacted instructions compared: forgetting functions

Summary Three experiments are reported in which under one condition subjects were given instructions to perform a series of acts (SPTs) and to remember the acts performed, and under a second condition were asked to remember the same verbal instructions without being required to perform any acts. Different groups of subjects were tested at different retention intervals. The forgetting curves for the two conditions differ with respect to intercept, but are similar in slope. The similarity in slope for the two conditions is present irrespective of differences in intercept. Several methodological issues are discussed as well as the nature of the relationship between recall of SPTs and verbal instructions.     

On the Psychological Significance of the Euclidean Representation of Implicit Personality Theory

The overall purpose of the present study was to investigate the psychological significance of the Euclidean representation of implicit personality theory (IPT) by testing the predictive usefulness of this representation. Multidimensional scaling analyses of 18 subjects' estimates of assumed trait co-occurences (IPT) gave Euclidean trait-distance matrices which were used to predict the subjects' trait-to-trait inferences. The results showed that: (1) The Euclidean representations of subjects' IPTs can be used to predict ( p < 0.10) most subjects' (14 of 18) trait-to-trait inferences; (2) The similarity between the Euclidean representation of subjects' IPTs was positively correlated (r_s = 0.43, p < 0.001) with the similarity between subjects' trait-to-trait inferences. These results suggest that the Euclidean representation of IPT has some predictive value, and thus, may at least to some extent, be justified and considered as psychologically significant.     

Salient Color Terms in Four Languages

Elicited lists of color terms were used to investigate the relative salience of basic and nonbasic color terms in four languages. Salience was operationalized in terms of frequency of mention and mean rank sequence of appearance on the lists. Primary basic terms were generally found to be the most salient, followed by derived basic and nonbasic terms, in that order. However, in some of the group lists the nonbasic terms beige, turquoise, navy blue and sky blue were found to have higher frequencies of mention and/or higher mean sequence ranks than some derived basic terms. The possible basicness of these terms is discussed.     

Scientific value

Criteria of scientific value are of different kinds. This paper concerns ultimate criteria, i.e. the axiology of science. Most ultimate criteria are multi‐dimensional. This gives rise to an aggregation problem, which cannot be adequately solved with reference to attitudes and behaviour within the scientific community. Therefore, in many cases, there is no fact of the matter as to whether one theory is better than another. This, in turn, creates problems for methodology.     

Individual response patterns and the effects of different behavioral methods in the treatment of agoraphobia

The importance of individual response patterns in agoraphobic patients was examined in the present study. Forty psychiatric outpatients with agoraphobia were assessed in individually relevant natural phobic situations. During this behavioral test their heart rates were measured continuously, and self-ratings of experienced anxiety were made at fixed intervals. On the basis of their reactions in the test situation, the patients were divided into two groups showing different response patterns—behavioral and physiological reactors. Within each group the patients were randomly assigned to one behaviorally-focused method (exposure in vivo, E) and one physiologically-focused method (applied relaxation, AR). The patients were treated individually for 12 sessions. Both treatments yielded significant improvements on most measures; 60% of the E group and 70% of the AR group patients were clinically improved after treatment. The between-group comparisons showed that both treatments did equally well both for behavioral and physiological reactors. Thus, the differential effects for these methods obtained in previous studies were not seen.