Diversity at Work: Do Men and Women Differ in their Organizational Citizenship Behavior?

ABSTRACT : In this paper, we use social role theory to develop hypotheses predicting differences in the organizational citizenship behavior of males and females at work. Results, based on questionnaire responses of 257 restaurant workers and their supervisors, demonstrate that females in our service-worker sample engaged in more altruism, loyalty, and obedience than males, but that males and females did not differ in their advocacy participation. Results also demonstrate that organizational tenure moderated the relationship between sex and two forms of citizenship behavior: altruism and advocacy participation. We discuss the implications of our findings and conclude with suggestions for future research.     

Variation in Raven's Progressive Matrices scores across time and place

The paper describes a cross-cultural and historical meta-analysis of Raven's Progressive Matrices. Data were analyzed of 798 samples from 45 countries (N = 244,316), which were published between 1944 and 2003. Country-level indicators of educational permeation (which involves a broad set of interrelated educational input and output factors that are strongly related to economic development), the samples' educational age, and publication year were all independently related to performance on Raven's matrices. Our data suggest that the Flynn effect can be found in high as well as low GNP countries, although its size is moderated by education-related sample and country characteristics and seems to be smaller in developed than in emerging countries.     

Pigeons’ memory for time: Assessment of the role of subjective shortening in the duration-comparison procedure

Pigeons were trained in a duration-comparison procedure to peck one key if the comparison duration (c) was 1 sec shorter than a standard duration (s), and another key if c was 1 sec longer than s. During training, the s-c delay was 1 sec, and the total duration of an s-c pair was not predictive of the correct choice. In Experiment 1, during equal-duration pair test trials, pigeons increasingly responded long (i.e., c τ s) as the s-c delay was lengthened. In Experiment 2, we demonstrated that s affected long responding on equal-duration test trials, even at the 8-sec s-c delay. In Experiment 3, long responding increased as the s-c delay was lengthened, even when stimulus conditions during the s-c delay differed from those during the intertrial interval (ITI). Additional analyses indicated that it was unlikely that the increase in long responding was due to the pigeons’ adding the s-c delay to c and comparing the total against the duration of s. The increase in long responding with an increase in s-c delay is more consistent with subjective shortening of s than with confusion between the s-c delay and the ITI.     

Mathematical power of special‐needs pupils: An ICT‐based dynamic assessment format to reveal weak pupils' learning potential1

This paper reports a study aimed at revealing special‐educational‐needs pupils' learning potential by means of an ICT‐based assessment including a dynamic visual tool that might help pupils when solving mathematics problems. The study focused on subtraction problems up to 100, which require ‘borrowing’. These problems, in which the value of the ones‐digit of the subtrahend is larger than the ones‐digit of the minuend, are known as a serious difficulty for weak pupils in mathematics. Seven of such problems from a standardised test were placed in the ICT environment. Data were collected from two test conditions: the standardised written test format and the ICT version of the test items including the tool that provided pupils with a set of virtual manipulatives. The 37 pupils involved in the study were 8–12 years old and from two special‐education schools in the Netherlands. Comparison of the performance scores in the two formats showed that an ICT‐based assessment format, including a dynamic visual tool, can reveal weak pupils' learning potential and strategy use. The study also pointed out that ‘partial‐tool use’, ie, not carrying out the complete subtraction operation with the tool, can provide sufficient support to find the correct answer.     

Early numeracy in low‐performing young children

The aim of this study was to explore the early numeracy of low‐performing young children. The mean age of the children was six years and four months. The 511 participants belonged to three groups: multi‐language children, children with special educational needs and children with average performance. The results showed that there were significant group differences in early numeracy: the children in the reference group had better relational and counting skills than those with a multi‐language background and those with special educational needs. Some differences were found in counting skills between the children with multi‐language background and those with special educational needs. Finally, (special) educational support for low‐performing children is discussed.     

Grasping the dynamic complexity of team learning: An integrative model for effective team learning in organisations

In this article we present an integrative model of team learning. Literature shows that effective team learning requires the establishment of a dialogical space amongst team members, in which communicative behaviours such as ‘sharing’, ‘co-construction’ and ‘constructive conflict’ are balanced. However, finding this balance is not enough. Important questions such as ‘communicating about what?’, ‘communicating with whom?’ and ‘communicating for what?’ remain crucial. Five other process variables ‘team reflexivity’, ‘team activity’, ‘boundary crossing’, ‘storage’ and ‘retrieval’ are identified. Besides the core process variables, our model organises the most important inputs, catalyst emergent states and outputs of team learning.