Indirect interception actions by blind and sighted perceivers: The role of modality and tau

Vernat, J.‐P. & Gordon, M.S. (2011). Indirect interception actions by blind and sighted perceivers: The role of modality and tau. Scandinavian Journal of Psychology 52, 83–92. Acoustic and visual interceptive actions were tested in this research by comparing the performance of blind, blind‐folded, and sighted individuals. An indirect interception method was employed in which the participant had to roll an intercepting ball towards a moving target on a perpendicular track. The interception task used conditions that varied the speed, rolling distance, and target size/intensity. While performance was highly consistent and accurate for visual participants in this research, the blind and blind‐folded participants demonstrated much more performance variability in response to changes in speed and distance. Manipulation of target size and intensity did not affect judgments, however performance tended to be more accurate at shorter distances and with faster target speeds. Results from this research are discussed in terms of their implications for tau in acoustic interception, and the use of spatial and temporal cues for guiding interceptive actions.     

Prior Exposure to Creatures From a Horror Film

This experiment assesses the impact of two exposure strategies on children's emotional and cognitive reactions to a frightening movie scene. Children from two grade levels (kindergarten and first vs. second through fourth) received a desensitization treatment in which modeled exposure to a live earthworm was factorially varied with exposure to graphic photographs of worms taken from a horror film. Children then viewed a frightening scene involving worms taken from this same film. Results indicated that exposure to photographs increased children's enjoyment of the movie segment and reduced fear reactions to the scene. In contrast, the live exposure strategy was effective in reducing fear reactions to the movie only among boys. However, live exposure did alter children's affective reactions to and judgments of worms themselves. The findings are discussed in terms of current theories of desensitization and information processing.     

Item Desirability Effects in Compliance-Gaining Research Seven Studies Documenting Artifacts in the Strategy Selection Procedure

A popular method for assessing compliance-gaming behavior involves having people rate lists of preformulated message strategies for likelihood of use. This “selection procedure” has been employed much more frequently than the alternative “construction procedure,” a method that requires people to generate their own message strategies. The present article argues that the selection procedure is much less sensitive than the construction procedure to the effects of situational and individual-difference variables on compliance-gaining behavior. The article further suggests that the insensitivity of the selection procedure is due to a type of social desirability bias known as the item desirability effect. Seven studies were carried out testing the Marwell and Schmitt (1967) and Wiseman and Schenk-Hamlin (1 981) strategy checklists for the item desirability effect. These studies found that (a) the likelihood of use ratings prouided for the strategies on both checklists could be accurately predicted by the rated social appropriateness of the strategies, (b) likelihood of use ratingsfor preforrnulated strategies haue relatively poor reliability, and (c) the construction procedure is much less susceptible to social desirability biases than the selection procedure. On the basis of these and related findings, it is recommended that researchers eschew the use of strategy checklists in future research.