Age-of-acquisition,imagery, familiarity and meaningfulness norms for 543 words

The age at which words are first learned appears to be more influential in determining the ease of retrieving words from semantic memory than objective frequency, familiarity, imagery, and meaningfulness. To facilitate research on a wider variety of tasks, we present norms for 543 words for age-of-acquisition, imagery, familiarity, and meaningfulness. Most of the words form single-solution anagrams. There are 471 six-letter nouns and 72 five-letter words. Also reported are the means, SDs, and ranges for each dimension and the intercorrelations between dimensions. Intergroup reliabilities ranged from .847 to .982.     

Brightness contrast effects in a pupillometric experiment

The effect of depth displacement of test bars from the induction wedge of the Ponzo illusion was investigated in two experiments. Either two wedges of opposite orientation were presented simultaneously, one at a near and the other at a far distance, or only one wedge was presented at either the near or the far distance. The test bars were stereoscopically either in the plane of the wedge or displaced from the wedge in distance. When the two wedges were presented simultaneously, the direction of the Ponzo illusion was determined by the wedge at the same perceived distance as the test bars. When only one wedge was present, stereoscopic displacement of the bars in front of, but not behind, the wedge decreased the magnitude of the illusion. The results are interpreted in terms of the adjacency principle.

     

An investigation of relative preference for consistency motivation

The present experiment was designed to determine relative preference for fulfillment of consistency motivation. Ninety-two students rated their attraction to, identification with, and idealization of a hypothetical stimulus person who was represented as having fulfilled particular social motives such as approval, power, achievement and consistency. Results confirmed that subjects prefer persons who have satisfied traditional needs more so than others whose consistency desires have been fulfilled. Implications for the role of consistency motivation in social behavior are considered.     

Obedience as a function of experimenter competence

The purpose of this study was to investigate obedience to an E’s commands as a function of E competency. Based upon Orne’s (1962, 1969) discussion of the demand characteristics inherent in the typical aggression study, it was hypothesized that E incompetence would decrease S obedience. Competence was manipulated by: (1) presenting some Ss with a nervous and inexperienced E, and (2)“accidentally” killing the victim (a rat) midway through the experiment. Thirty-two undergraduate female Ss participated in the experiment—supposedly a study on the physiological effects of stress. Obedi6nce was operationalized as the difference, in simple reaction time, between trials on which Ss were told that their response might result in shock to the rat and trials on which they were told that their response might save the rat from shock. Significant differences in obedience were obtained between competent and incompetent E conditions, and a significant “kill” effect was found in the competent E conditidn. The results of this study suggested that the extreme acts of obedience observed in the laboratory (e.g., Milgram, 1963) occur only when E is perceived as competent. This finding imposes limits on the generalizability of laboratory studies of obedience.     

Social comparison,attraction, and choice of a comparison other

The effects of attitudinal similarity and task-relevant affiliative status, together with three situational factors (presence or absence of a monetary reward, choice of information source or work partner, and choice made before or after Ss completed preliminary work on the task), on the choice of comparison others were examined. The most significant determinant of the comparison other chosen was attitude similarity (p < .01). There was also a significant interaction between attitude similarity, task-relevant affifliative status, and time of choice (p < .05). The nature of the interaction suggested that general impressions such as conveyed by general attitudinal information may be more important in the selection of referent others than comparability on situation-specific factors.     

Prior induced affect and sex differences in attraction

Male (N = 90) and female(N = 90) Ss were shown either 12 humorous or 12 serious TV commercials and were asked to rate each commercial on six 7-point personal feelings scales as well as on a 6-point evaluative (like-dislike) scale. The Ss were then shown the purported evaluative responses of a same-sex stranger which were .17, .50, or .83 similar to their own. Analysis of the personal feelings scales indicated expected differences (p < .001) in affect associated with the two sets of commercials. Females who viewed the serious commercials evidenced greater attraction toward the stranger than did females who saw the humorous commercials (p < .05). The similarity attraction function for males in the humorous condition had a greater slope and a lower y intercept than the similarity attraction function for males in the serious condition. A factor analysis of female affective responses to five socially relevant commercials in the serious set suggested the operation of two affective dimensions, one of which appeared to reflect feelings of social concern.     

Influence of stimulus symmetry on visual scanning patterns

Eye movements of four Ss performing a complexity rating task in which the stimuli consisted of random shapes differing in symmetry, number of turns (sides) in the perimeter, and structural angularity were examined. It was found that for both symmetrical and asymmetrical shapes, the number of fixations and fixation time increased directly with structural complexity (number of sides). Distributions of fixations for symmetrical shapes clustered in one-half of the shapes, while the distributions of fixations for asymmetrical shapes did not exhibit this one-sided bias. No differences were found in the distributions of fixation time to either half of asymmetrical or symmetrical shapes. The findings suggest that S utilizes an organizing code in addition to the featural code in characterizing a given shape. The organizing code permits S to generate the feature code for a gwen shape on the basis of partial information.     

Partial differential feedback: An on-line training configuration for the optimization of multidimensional cue learning

The present paper describes a PDP-9 computer configuration arranged for experimental research into the acquisition of judgmental skill, but designed to overcome certain deficiences noted in stimulus-response-outcome (SRO) paradigms. The configuration departs radically from traditional approaches in that (a) the stimulus is placed under S control; (b) the requirement for a “response” is eliminated; (c) outcome feedback is a continuously changing function of the multiattribute stimulus settings under the control of S; and (d) the configuration makes possible the rapid learning of an essential feature of such learning tasks, namely the partial derivatives of the criterion or outcome variable with respect to each of the stimulus attributes.