Many self-concept measures employ several different scales to which the subject responds in a set order at one sitting. This study examined the effects of different testing conditions on such scales. Bill's Index of Adjustment and Values was administered to 191 graduate students under two different sequences, and two time delay conditions. The…

The project report summarized here describes the interrelationships of the individually administered tests given to 820 Head Start children from three urban sites in the second year of a longitudinal study. These results are compared with those obtained in Year 1, the year prior to the students' attendance in a group program. The tests tapped…

The purpose of this study was to modify the conceptual tempo (response style on a reflective-impulsive dimension) by training impulsive children to increase their response latency or by teaching more effective search strategies and scanning techniques. Subjects were 169 second graders from two lower class area schools. Each subject was assigned to…

Mean response times and slope of response times were correlated with intelligence and achievement for 94 sixth-graders. Mean response time reliability was greater than that of slope, and correlated significantly with IQ and achievement. Speed of processing information generalized across experimental tasks and reliably indicated intellectual…

Ten young males (aged 16-to-22 years) whose IQ scores ranged from 51 to 77 were compared on a simple discrimination task with ten male university students (aged 18-to-23 years) and 28 nonretarded male children (aged 7-to-11 years) in order to determine if reaction time is a consequence of mental retardation.

Four experiments investigated memory scanning rates of skilled and less skilled readers. In three experiments, reaction times of skilled readers were faster than those of less skilled readers with reading time partialled out (aloud and silent reading). Differences were not significant when the scan component in answering was minimized. (Author/RD)

A new method for determining the durations of mental events, the method of special effects, was developed and applied to a series of three experiments. The method measures the effects of various context stimuli on the speed of responses to a probe stimulus. By varying the interval between onset of context and probe, the time courses of these…

In an attempt to replicate and extend previous findings on autonomic arousal and responsivity in children with minimal brain dysfunction (MBD), pupil size, heart rate, skin conductance, and skin temperature were recorded from 32 MBD and 45 control children (6-13 years old). (Author/CL)

The time taken to name 56 drawings of objects on five separate occasions were analyzed for 21 ESN(M) children (i.e., moderately educationally subnormal) and 21 ESN(S) children (i.e., severely educationally subnormal), matched for picture-naming vocabulary. Results were discussed in terms of the Oldfield (1964) and Lachman (1973) models of lexical…

Boys (N=55) aged 8-11, categorized as impulsives by the Matching Familiar Figures test, participated in a study comparing the effects of three different techniques, designed to change an impulsive cognitive style on response accuracy and response latency. Subjects trained to increase response latency did show a significant increase in latency.…

Longstreth's critique of Jensen's research on the relationship of IQ to individual differences in visual reaction time (RT), measured in the Hick paradigm, is said to have numerous errors of fact and interpretation, some trivial and some of theoretical importance. (Author/LMO)

Measures of verbal intelligence and abstract reasoning were taken on a group of 31 college-aged and 32 elderly adults, together with mental-processing rates associated with choice reaction time, primary memory scanning, and lexical decoding. Group means showed that verbal IQ and lexical decoding were intact in the elderly subjects. (Author/LMO)

Relationships between intelligence test scores and measures derived from reaction time and perceptual speed procedures were investigated. Only three reaction time measures produced correlations greater than .25 with a general intelligence factor. Test-retest reliability of reaction time measures was low. The reaction time-intelligence relationship…

The data indicated that disadvantaged children required more time to process visual information than did middle-class children, but the processing speed for the 2 groups tended to become more similar as grade level was increased. (Author)