From the best-fit lines corresponding to sets of families of conditional judgements, the constant stimulus family and the constant condition family, both defined for a same scale object, the coordinate values of the point of intersection of both lines (indifference point) are obtained. These values are studied in relation to the mean values of the…

Internal verbal processes were assumed to play a central role in complex school learning tasks. The research reported was concerned with a certain class of internal verbal behavior. The implicit associative response (IAR) was conceptualized as an internal verbal response that may occur when an individual sees or hears a word. Results of four…

Given that the associative meaning of a word is defined as the set of associates evoked by that word and the relatedness between two words is dependent upon the degree of overlap of their respective associative meaning, this program computes the relatedness coefficient for two values of the weighting component. (Author/RC)

Two-day-old chicks were found to prefer an ancestral maternal call over a brief repetitive pure tone burst when stationary models emitted the calls; however, other chicks prefered the repetitive tone over the maternal call when the models emitting the calls were moving. (JMB)

Describes three delayed-response experiments which tested two- and three-year-old children's memories for location of a hidden object under several combinations of spatial and pictorial cue availability and emphasis. (Author/JMB)

Used a modification of Elkind's Picture Integration Test to investigate kindergarten children's perceptual centration in a composite and component picture recognition task. (JMB)

Recorded the pattern of crying in neonates who were responding to natural infant cries, synthetic cries, and silence. (GO)

A statistical technique is proposed for comparing an empirically obtained matrix of the perceived similarity of paired stimuli against a set of distinctive features that supposedly characterize the stimuli on which the matrix is based. The statistical development of the technique and an example are presented. (Author/JKS)

A paradox in studying sensory perception is that people often attend to a stimulus which provides the least optimal information. Usually, this is a visual stimulus. The study sought to lessen this reliance on vision by training subjects to respond to proprioceptive stimuli. Results are discussed. (Author/JL)

The authors describe a project to design a playground at the John de la Howe School in South Carolina using students' ideas. A list of ideas for making a playground into a mentally and physically stimulating environment is included. (CH)

When the effectiveness and mortality-morbidity of electroconvulsive therapy (ECT) are compared with those of drug therapies, it appears that ECT is an effective and preferred treatment strategy. It remains underutilized as a modality of suicide prevention. Addresses controversies that presently limit the use of this treatment. (Author/ABB)

Three variables (diagnosis, location of cues, and mental age of learners) influencing stimulus control and stimulus overselectivity were assessed with eight autistic children (mean age 12 years) and eight average children matched for mean age. Among results were that autistic subjects tended to respond overselectively only in the extra-stimulus…

Studies of orientation perception in infants and children have revealed an "oblique effect," that is, a performance advantage for tasks involving horizontal and vertical stimulus orientations compared with tasks involving oblique orientations. The two studies reported support the hypothesis that oblique stimulus orientations are treated…