Intraindividual variability (IIV) in cognitive speed, or moment-to-moment changes in ability, is a developmental phenomenon indicative of neurological integrity that increases gradually across adulthood. Past research has shown that IIV negatively covaries with cognitive performance, in which higher IIV at one occasion is associated with poorer…

Purpose: The aim of this study was to determine whether the word-learning challenges associated with developmental language disorder (DLD) result from encoding or retention deficits. Method In Study 1, 59 postsecondary students with DLD and 60 with normal development (ND) took the California Verbal Learning Test-Second Edition, Adult Version…

The effects of delaying an immediate test, a rehearsal opportunity, or a second presentation on long-term free recall were investigated in an experiment combining features of the Brown-Peterson and free-recall paradigms. A proposed model assumes that both repetitions and tests promote learning. (CHK)

The major thesis of this research is that there are two types of processes underlying verbal performance. First, there are processes based on knowledge. Second, verbal performance requires the exercise of certain information-free, mechanistic processes, i.e., those that are conducted on the physical representation of a symbol (including whatever…

When subjects are tested on ordered information, performance is better on inferences than on information actually presented during training. Humphreys suggested that superiority on inferences derives from differential frequency. This experiment refutes that position, demonstrating that superiority on inferences is observed even when frequency is…

Subjects were asked to encode and recall lists of words under the influences of marijuana and a marijuana placebo. Free recall was more complete when both encoding and recall were after marijuana use than in the encode-marijuana, recall-placebo state. Recall must depend on restoration of dissociated encoding state. (CHK)

This verbal memory study considers only simple sentences and examines learner performance under the two conditions of audio presentation and printed presentation. Learner performance is compared when required either to recognize sentences identical to those in the original list or, alternatively, to recognize non-identical sentences incorporating…

An information processing approach was applied to the development and validation of a test battery intended for personnel selection, classification, and guidance; and design of training programs. The approach specifies that tests should measure specific cognitive processes and basic abilities, rather than prior experience. Tests should be short,…

This study was the first in a series of investigations designed to examine techniques purporting to enhance the effectiveness of human memory. The utility of a simple pegword mnemonic for Army enlisted personnel, representing three levels of general technical ability, was examined. Half of each ability group was instructed in use of a rhyme…

An information processing approach was applied to the development and validation of a test battery intended for personnel selection, classification, and guidance; and design of training programs. The approach specifies that test should measure specific cognitive processes and basic abilities, rather than prior experience. Tests should be short,…

This research explored the fundamental processes involved in comprehending linguistic material: the duration of the process, the sequence of processes, and the sources of errors. One project examined the comprehension of affirmative and negative sentences that are read and verified with respect to a picture. A model developed to account for the…

An information processing approach was applied to the development and validation of a test battery intended for personnel selection, classification, and guidance; and design of training programs. The approach specifies that tests should measure specific cognitive processes and basic abilities, rather than prior experience. Tests should be short,…

This summarizes a study designed to provide a basis for researchers who study measurable areas of human performance or attempt to conceptualize and develop a theory and structure of abilities. Specifically, this study was directed toward the identification of tests that can serve as markers for well established cognitive factors. (Author/CTM)

An ongoing series of experiments has extended Rose's information processing approach to job performance assessment. Each study investigated cognitive tasks from the literature on memory, psycholinquistics, and visual information processing, for potential inclusion in the test battery. Each task was then evaluated against three criterion areas: (1)…