Two studies demonstrated dissociation between preschoolers' understanding of pictorial and mental representations. Results showed that false picture tasks were significantly easier than false belief tasks. There was no correlation between performance on the two. Children were trained on false belief, false picture, or number conservation tasks;…

Identifies a function generator as an instrument that produces time-varying electrical signals of frequency, wavelength, and amplitude. Sending these signals to a speaker or a light-emitting diode can demonstrate how specific characteristics of auditory or visual stimuli relate to perceptual experiences. Provides specific instructions for using…

Investigates the impact created by the use of videoconferencing technology in a large MIS class where, traditionally, lecture had been used. Even though 85% of the students who participated in the classes were non-MIS majors, students in the videoconferencing section perceived it to be more useful, challenging, attractive, and clear compared to…

Focuses on the importance of phonology in establishing orthographic representations. In normal readers, phonological and orthographic representations of words are so closely connected that they are usually coactivated, whereas in dyslexics, this connection is less strong, so that orthographic representations interfere less with phonemic…

Four students (ages seven to nine) with moderate mental retardation were successfully taught to name photographs of foods using a progressive time delay procedure. Presentation of the supermarket grocery department as part of the discriminative stimulus was effective in increasing the percentage of correct responding. Some generalization occurred…

Argues that the "voices" of English-as-a-Second-Language teachers have received too little attention in second-language learning research and that, too often, teachers have had to implement "visions" of teaching-learning generated by academics in institutions of higher education. Using interviews with Thai teachers of English,…

Interset and set-to-total correlations for the California Card Sorting Test were studied for 135 college students and 63 elementary school students. Although subsets were not equivalent, the generally good correlations between subset and total test scores indicated that use of the individual subsets as short forms is justified. (SLD)

Describes two new exercises in classical conditioning that use earthworms and houseflies. The animals are available year-round and pose no risk to the students or instructor. The conditioned stimuli are odorants. These elicit a conditioned response of contraction in worms or proboscis extension in flies. (MJP)

Investigates the effects of two instructional strategies, visual display (animation, and static graphics with and without motion cues) and contextual presentation, in the acquisition of electronic troubleshooting skills using computer-based instruction. Study concludes that use of visual displays and contextual presentation be based on the…

The experience tutoring a student who is blind in four semesters of university calculus is discussed. The mechanics, instructional strategies employed, and the challenges encountered are examined as they relate to teaching mathematics. It was found there are important similarities and also differences as compared to sighted students in teaching…

A multiple baseline design across three parent-child dyads of families with multiple risk factors was used to determine the effectiveness of teaching parents to use milieu language teaching procedures. Parents were taught to use two sets of milieu language teaching skills: responsive interaction and incidental teaching. Results showed that parents…

The present study employs event related potentials (ERPs) to verify the utility of using electrophysiological measures to study developmental questions within the field of language comprehension. Established ERP components (N400 and P600) that reflect semantic and syntactic processing were examined. Fifteen adults and 14 children (ages 8-13)…

The attentional blink refers to the finding that the 2nd of 2 targets embedded in a stream of rapidly presented distractors is often missed. Whereas most theories of the attentional blink focus on limited-capacity processes that occur after target selection, the present work investigates the selection process itself. Identifying a target letter…

Research on perception and cognition suggests that whereas East Asians view the world holistically, attending to the entire field and relations among objects, Westerners view the world analytically, focusing on the attributes of salient objects. These propositions were examined in the change-blindness paradigm. Research in that paradigm finds…

Overselective stimulus control was assessed in 29 students at residential schools for individuals with developmental disabilities. Overselectivity testing included three different delayed identity matching-to-sample tasks. Sample stimuli for the Form/Color Test were nine possible combinations of three colors and three forms. On each trial, the S+…