Effect sizes are estimated from several study designs when the subjects are individually sampled. When the samples are the aggregate cluster of individuals, the within cluster correlation must be accounted for to construct correct confidence intervals, and to conduct valid statistical inference. The purpose of this article is to propose and evaluate statistical procedures for the estimation of ...

Social scientists in many disciplines have used the General Social Survey’s ten-item Wordsum vocabulary test to study the causes and consequences of vocabulary knowledge and related constructs. In adding up the number of correct answers to yield a test score, researchers have implicitly assumed that the ten items all reflect a single, underlying construct and that each item deserves equal weigh...

Metatraits measure individual differences in construct relevancy, whereas traits measure individual differences in construct extremity. Twenty-four traits and metatraits were examined in this study using 157 pairs of identical twins reared together, 95 pairs of identical twins reared apart, 211 pairs of fraternal twins reared together, and 228 pairs of fraternal twins reared apart obtained from...

Background and Aim: One of the dimensions of health is mental health that could be affected by the quality of occupational life. The purpose of this study was to determine the effect of job satisfaction on teachers' mental health with due consideration of the moderating role of gender and the subjects taught. Materials and Methods: This was a quantitative survey using a questionnaire including...

This article presents findings from five repertory grid interviews conducted in early 2001 to identify attributes of information as an asset. Repertory grid is a technique developed by George Kelly based on his theory of personal constructs. Personal construct theory (PCT) assumes that individuals are their own ‘personal scientists’ who mentally represent the world around them. The method was u...

Work is currently in progress on the following projects: What do experts/novices know about programming. T1 The objective here is to develop a plan-based theory of programming knowledge and to test it empirically with novice and expert programmers. We are also using this theory to study the bugs and misconceptions of novice programmers. Cognitively appropriate programming language constructs.’ ...

Like other constructivist approaches, Personal Construct Theory (PCT) views human activity as a meaning creating process. What human organisms do, is informed by the way they construe events, and in turn assign meaning to those events. Symptoms are a rare, but legitimate part of their activity. They challenge our everyday conceptions regarding human behaviour. From a personal construct perspect...

It is known that every class-regular symmetric μ,m -net is tactical. Also it is known that all μ,m nets with m 2 or μ 1 are tactical. In the work of Al-Kenani and Mavron 2003 , it is proved that every symmetric net with m 3 is tactical if and only if it is class regular. In this paper, we construct 2, 4 -net and show that it is class regular and therefore tactical. New necessary and sufficient ...

Guided by a recent theory that proposes fundamental differences in how autistic individuals deal with uncertainty, we investigated the extent to which the cognitive construct 'intolerance of uncertainty' and anxiety were related to parental reports of sensory sensitivities in 64 autistic and 85 typically developing children aged 6-14 years. Intolerance of uncertainty and anxiety explained appro...

Given a Markov chain sampling scheme, does the standard empirical estimator make best use of the data? We show that this is not so and construct better estimators. We restrict attention to nearest neighbor random elds and to Gibbs samplers with deterministic sweep, but our approach applies to any sampler that uses reversible variable-at-a-time updating with deterministic sweep. The structure of...