Showing papers by "Oklahoma City University published in 1970"
TL;DR: In this article, the synthesis of tetraethyldithiooxamide (TEDTO) complexes with the formulas [M(TEDTO), 3 ](ClO 4 ) 2, where M Mn(II), Fe, Co, Ni, and Zn(II) are reported.
13 citations
TL;DR: In this article, 30 albino rats were conditioned to bar-press for water under either continuous or 45-sec fixed-interval reinforcement schedules and extinction was carried out with either zero reinforcements, omission training, or noncontingent 45sec fixedinterval reinforcements.
Abstract: Thirty albino rats were conditioned to bar-press for water under either continuous or 45-sec fixed-interval reinforcement schedules. Extinction was then carried out with either zero reinforcements, omission training, or noncontingent 45-sec fixed-interval reinforcements. Resistance to extinction was measured by the number of bar presses, the time, and the rate of responding to a no response for 15 min criterion. It was concluded that the measure taken would affect many of the conclusions from extinction studies.
5 citations
TL;DR: In this paper, the effects of association value (A V) on perceptual search time were investigated in a design to control practice effects, and it was concluded that practice effects and perhaps S's failure to retain the targets of low AV during his search had influenced the results of previous studies.
Abstract: The effects of association value (A V) on perceptual search time was investigated in a design to control practice effects. Forty Ss were each exposed to four Jists of tri grams (field) with instructions to find a particular one (target). No S experienced more than one level of each factor of the 2 by 2 by 4 design. There were two A V levels of the target trigrams, two AV levels of the field list of trigrams, and four target positions. As expected, perceptual search time increased as the target was moved down the list. The analysis supported the hypo thesis that AV reduced perceptual search time when the field and target have different AV. lt was concluded that practice effects and perhaps S's failure to retain the targets of low AV during his search had influenced the results of previous studies. While studying the effects of association value (A V) on the discriminability of a perceptual target, Portnoy, Portnoy, & Salzinger (1964) demonstrated that when a target trigram of one A V was embedded in a fjeld of trigrams of a different A V, then perceptual search time was reduced to less than when the target and field were of the same A V. Their data also indicated that target trigrams of high A V were more rapidly detected than were those of low AV. No difference was indicated due to A V of the fjeld list of trigrams. Smith & Egeth (1966) questioned the results of the above study on the grounds that the data did not permit an analysis of the search time per item as weIl as the possibility that Ss may have been using a search strategy of first letters rather than the complete trigram. Furthe'r, Srnith and Egeth suggested that since the trigrams of the field were spread equally across a card, Ss may have was ted time in searching a previously searched area. They replicated the Portnoy, Portnoy, and Salzinger study with the target trigrams embedded in four positions of one vertical list of fjeld trigrams. Their results did not support the hypo thesis that A Vaffected perceptual search times. Another study which dealt with the same phenomenon was that of Schulz & Lovelace (1964). Their data indicated that when the target trigram was presented simultaneously with a horizontal field of ei gh t tri grams, targets of low meaningfulness (M) in low M fields were not detected as rapidlY as were targets of high M in high M fields. They also
1 citations