Reconceptualizing of the overjustification effect: A template-matching approach

The paper reviews traditional attributional explanations for the over-justification effect in task motivation, isolates their weaknesses, and proposes an alternative account based on the notion that individuals process task information schematically. It is proposed that task information relating to motivation is interpreted by cognitive schema or “templates,” which identify tasks as being either instrumental or expressive in nature. When the expressive template is evoked, the task is perceived to be playlike and is experienced as inherently motivating. When the instrumental template is evoked, the task is perceived as a means to an end and task motivation results from the perceived value of the task for attaining intrinsic and/or extrinsic rewards. Structural characteristics of these templates are proposed. According to this account, overjustification effects occur when the perceived characteristics of tasks change such that the expressive template is replaced by the instrumental template and expressive motivation is transformed into instrumental motivation.     

Does the autistic child have a metarepresentational deficit?

This study examines the claim that autistic children lack a “theory of mind” because of an inability to metarepresent. We argue that if autistic children have a “metarepresentational” deficit in Leslie's (1987, 1988) sense of the term, then they should have difficulty not only with mental representations such as false beliefs, but also with external representations such as photographs. Autistic children's understanding of photographic representations was tested using Zaitchik's (1990) task. This task is modelled on the false belief task (Baron-Cohen, Leslie, & Frith, 1985: Wimmer & Perner, 1983) but involves “false” photographs where a photographic representation does not conform with the current state of the real world. Like Zaitchik (1990) we found that normal 3 and 4-year-olds found this task as difficult as the false belief task. In sharp contrast, however, the autistic children in our study passed the photograph task but failed the false belief task. As both tasks require the ability to decouple, this evidence challenges the view that autistic children lack “metarepresentational” ability in Leslie's sense. However, the results leave open the question of whether autistic children have a metarepresentational ability in the different sense of the term intended by Pylyshyn (1978), that is, representing the relationship between a representation and what it represents.     

Self-Efficacy,Perceptions of Success,and Intrinsic Motivation for Exercise1

A number of investigators have attempted to identify the determinants of continued participation in exercise regimens. Within a social cognitive framework, the present study examined the relationships among self-efficacy cognitions, perceptions of success, and multidimensional intrinsic motivation in the exercise domain. Multivariate analyses of variance indicated that highly efficacious individuals were more intrinsically motivated toward aerobic dance than were their less efficacious counterparts. However, multiple regression analyses revealed both perceptions of success and self-efficacy to account for significant variance in intrinsic motivation at both the composite and dimensional levels. Moreover, perceptions of success were considerably stronger predictors than were efficacy cognitions. The results are discussed in terms of the need for multiple measures of perceived success, the employment of longitudinal designs to determine the direction of causality among these variables, and possible implications for adherence issues.     

Popular and aggressive boys' initial social interaction patterns in cooperative and competitive settings

Thirty-two third- and fourth-grade popular and aggressive boys were observed individually attempting to enter a game being played by a mixed-status unfamiliar-peer dyad in both competitive and cooperative game settings. Consistent with previous findings, popular entry children were accepted more readily into the game situation than were aggressive children. Popular children tended to approach the situations using more prosocial questions while their aggressive peers tended to use demands. More differences in entry strategies were noted in the competitive than in the cooperative game setting. While most entry children directed their first entry bid toward the aggressive game host, they reported having liked the popular game host best when the game was finished. Additionally, the quality of game interactions was observed to become more positive following a popular child's entry, while becoming more negative following an aggressive child's entry. The results are discussed in terms of leadership roles and implications for both assessment and intervention settings and strategies.The authors wish to acknowledge the support and cooperation of the Greensboro, North Carolina, public and parochial schools, and the assistance of William Livingston.This paper was presented at the 19th Annual Convention of the Association for the Advancement of Behavior Therapy, Houston, Texas.     

Perceived benefits of marathon running in males and females

The differences in both perceived benefits and attitudes toward running between male and female runners, and between runners who classified themselves as competitive runners (CR) or recreational runners (RR), was the focus of this study. Four-hundred and two runners completed the Ten-Minute Survey for Runners within two weeks of completing a marathon. RR, more so than CR, perceived greater benefits from running. However, CR expressed a more positive attitude toward running and its role in their lives than did RR. Men perceived running to be more beneficial to them than women. However, women, more so than men, felt running had a positive effect on self-image and their lives were richer because of running. Future research concerns on the effects of competition on the lives of women are explored.     

Integration of information from multiple element displays

This experiment examined the processing of information from multiple element visual displays, using techniques derived from the theory of signal detectability. The method allows one to specify how observers integrate information from individual elements of a display. The experiment tested numerical and graphical displays having different display sizes, durations, and arrangements of elements. Observer performance increased with the number, m, of display elements, but at less than the ideal √m rate. Observer performance was consistent with a model of information integration constrained by internal noise. Linear arrays of elements resulted in better performance than did square arrays. Graphically coded elements resulted in better performance than did numerical elements. Observer decision weighting of element information from graphical displays was approximately uniform across spatial position, but the weighting of information from numerical displays was concentrated on elements near the fixation point.     

Adult age differences in elaborations produced during prose recall

This study focused on adult age differences in the characteristics and quantity of elaborations produced during a prose recall task. Young (M = 24.3 years) and older (M = 67.9 years) adults were tested in 3 same-age, same-gender group size conditions: individual, dyad, and tetrad. Elaborations, which are statements not contained in the text but not inconsistent with it, were divided into 2 major categories. Denotative elaborations included statements that were closely related to the text and filled in gaps in the stories. These elaborations were equally produced by young and older adults and were significantly correlated with gist recall performance. Annotative elaborations were evaluative and interpretive comments. These statements were more frequently produced by older adults but were not correlated with recall performance. Young and older adults had different patterns of annotative elaboration production across group size conditions.     

Adolescents' perceptions of friends' and parents' attitudes to sex and sexual risk-taking

This study investigated the association between adolescents' perceptions of parental and peer attitudes towards sexuality and AIDS precautions, and the risky sexual behaviours of 1008 sexually active, heterosexual undergraduate students aged 17-20 years. Students were asked to rate the extent to which their mothers, fathers and friends would agree or disagree with 16 statements reflecting support of the adolescent engaging in sexual behaviour and using sexual precautions, including precautions against AIDS. The adolescents also indicated whether they were sexually active and their level of condom use in both ‘regular’ (or steady) and ‘casual’ relationships. Results indicated that adolescents perceived their parents as non-liberal in their sexual attitudes and relatively unlikely to discuss sex or precautions with them. Parents were viewed as more accepting of their sons' sexual behaviours than of their daughters'. Adolescents believed that peers were more likely to discuss sexuality and precautions than parents, and were more liberal in their sexual attitudes. Adolescent sexual risk-taking was related to the perceived attitudes of significant others in ways which varied across gender and type of relationship. Implications for interventions are discussed.     

Tachistoscopic display using color-lookup-table display devices

In this article, I describe a method for presenting multiple bit-mapped images on video displays under precise temporal control. The method makes use of the color-table animation technique that can be used with color-lookup-table display devices. The principal challenge in applying this technique to the display of multiple stimuli lies in dealing efficiently with the problem of overlapping displays. The solution described here is to allocate separate bit slices of screen memory to stimuli that overlap and to allocate sequential color-table indices to stimuli that are disjoint. Software is described that automatically computes the location of a stimulus on the screen, allocates color indices appropriately, transfers bit images to screen memory efficiently, and manipulates the color lookup table to present a given stimulus to the viewer. These operations are handled transparently; the user simply draws the stimuli and then turns them on or off under program control.     

Improving the retrieval of information from external sources

A major barrier to successful retrieval from external sources (e.g., electronic databases) is the tremendous variability in the words that people use to describe objects of interest. The fact that different authors use different words to describe essentially the same idea means that relevant objects will be missed; conversely, the fact that the same word can be used to refer to many different things means that irrelevant objects will be retrieved. We describe a statistical method called latent semantic indexing, which models the implicit higher order structure in the association of words and objects and improves retrieval performance by up to 30%. Additional large performance improvements of 40% and 67% can be achieved through the use of differential term weighting and iterative retrieval methods.