A historicodevelopmental model of acquisition order of words was applied to 175 words comprising the Peabody Picture Vocabulary Test--Revised. A structural equation model demonstrates that the combination of date of entry into English, word length, polysemy, and frequency of use account for a substantial proportion of variance of acquisition…

A technique is presented for applying the Rule Space methodology of cognitive diagnosis to assessment in a semantically rich domain. The approach bases diagnosis on item characteristics that are more abstract than individual problem-solving steps. The method is illustrated through a test of architectural knowledge completed by 122 architects. (SLD)

The Tower of London test (T. Shallice, 1982), a measure of executive function, was reconstructed to increase its reliability through revisions tested with successive samples of 50, 50, and 34 college students. Adjusting the item pool resulted in acceptable test-retest reliability. (SLD)

Investigated genetic and environmental influences on the similarity and differences among five tests of cognitive abilities in 1,958 pairs of same-sex twins born in 1994 in the United Kingdom. Results suggest a developmental trend from modularity to molarity when considered in relation to multivariate genetic results later in life that show that…

Proposes a methodology and describes a test battery that synthesizes the psychometric strengths of maximal performance tests and the engagingness of typical-performance tests. Results with 31 adults show that the test measures the same abilities tapped by conventional cognitive tests but is viewed by examinees as less stressful, more interesting,…

Constructed a general information or knowledge test that measured 19 domains of general knowledge, with 6 first-order factors and 1 second-order general factor. Studied sex differences for 469 female and 167 male undergraduates. Results confirm previous research showing that males obtain higher average scores than females on information subtests,…

Studied the stability of test anxiety over time by examining the level of reported cognitive test anxiety at three points in an academic semester. Results for 64 undergraduates show that it is practical to collect test anxiety data at times other than when a test is being completed. It does not seem necessary to collect test anxiety data prior to…

A three-phase longitudinal study examined the origins of grammatical sensitivity and its usefulness as a predictor of early word-level reading. At about 4 years of age, children were given a range of language and cognitive tests. One year later, the children were given a further series of language and cognitive tests, this time including…

Based on stimulating findings suggesting that prenatal levels of steroids may influence cognitive functions, a study with N=40 healthy volunteers of both sexes was conducted. Prenatal levels of testosterone (T) were estimated by use of the second-to-fourth digit ratio (2D:4D) which is supposed to be controlled by the same genes involved in…

The sensitivity of the Paced Auditory Serial Addition Task (PASAT) to working memory deficits may be enhanced by examining "dyads" (i.e., correct responses immediately preceded by a correct response) as a complement to the traditional total correct summary score. In a sample of 397 mostly African American (79%) healthy adults, total dyad…

The present investigation examined the functioning of inhibitory mechanisms in younger and older bilinguals using a bilingual version of the Stroop test. The study predicted different patterns of age related decline in inhibitory mechanisms (inter- and intralingual interference) in bilinguals depending on their level of proficiency. Consistent…

We explored the effect of the degree of conceptual similarity between a witnessed event and an extra-event narrative on eyewitness suggestibility. Experiments 1A and 1B replicated Allen and Lindsay's (1998) finding that subjects sometimes intrude details from a narrative description of one event into their reports of a different visual event.…

We tested whether the distinctiveness effect in memory (superior memory for isolated or unusual items) only occurs with conscious recollection or could emerge with recapitulation of the type of processing that occurred at study even in the absence of recollection at test. Participants studied lists of categorically isolated exemplars. In…

In 1992, Reed and Jensen ["Intelligence" 16 (1992) 259-272] reported a positive correlation (0.26; "p"= 0.002; 0.37 after correcting for restricted intelligence range) between a brain nerve conduction velocity (NCV) and intelligence level in 147 normal male students. In the first follow-up of their study, we report on a study…

This article investigated the impact of using e-learning models' with the principles of constructivism to enhance the critical thinking skills of students in higher education institutions. The study examines the effectiveness of e-learning model in enhancing critical thinking of students at university level. This effectiveness is measured by a…