The effect of earlier experience and reward contingencies on intrinsic motivation

The effects of task-contingent and performance-contingent extrinsic rewards upon subsequent intrinsic motivation are compared. Intrinsic motivation is measured by behavioral observation in a free time period and by rating scales. The results show, as expected, a higher rating of intrinsic motivation in the performance-contingent reward condition. The study further compares strength of intrinsic motivation in one- and two-session conditions. As hypothesized, a two-session condition, in which the subjects have a preexperience with the task without reward administration, leads to a higher rating of intrinsic motivation than a one-session condition without such a preexperience. The behavioral measure of intrinsic motivation is not significantly affected by the conditions. A post hoc analysis of the data indicates that there may be a different effect of extrinsic rewards on behavioral measures and on rating scale measures of intrinsic motivation.     

On how task-contingent rewards,individual differences in causality orientations,and imagery abilities are related to intrinsic motivation and performance

This study explored how causality orientations, individual differences in imagery, and reward contingency are related to performance and intrinsic motivation. Cognitive evaluation theory, as applied to both causality orientation and reward contingency, was used to make predictions about the effects of internal or external events perceived as being autonomy supportive or controlling. In the light of the fact that task-contingent rewards must be salient to undermine intrinsic motivation and performance, one can suppose that high imagery may increase the controlling aspects of task-contingent rewards. Moreover, research now indicates that vegetative activation correlates with levels of imagined effort, and that high imagery capabilities enhance performance in motor skills. The main purpose of this study was to contribute some arguments for imagery and reward interaction effects on intrinsic motivation and performance. As predicted, autonomy-oriented subjects reported more interest and intrinsic motivation, and exhibited better performance than did control-oriented individuals. Similar differences were observed in favour of high-imagery individuals. Moreover, the effects of imagery were not only subject to an interaction between imagery and causality orientation, but also between imagery and reward contingency. The links between these variables are discussed in the framework of both Carver and Scheier's (1981) motivational control theory, and Deci and Ryan's (1985a) cognitive evaluation theory. © 1998 John Wiley & Sons, Ltd.     

A process analysis of the effects of performance-contingent rewards on intrinsic motivation

In this study, the effects of performance-contingent rewards on intrinsic motivation were examined in comparison to no-reward controls receiving identical performance feedback. A path analytic process analysis was conducted to examine the mediation of reward effects on subsequent task interest. It was hypothesized that competence valuation, or the personal importance of doing well, would be an important mediator of interest in situations where performance feedback was available. Rewards were predicted to affect interest by influencing an individual's valuation of competence, and by altering the competence valuation mediation process. In addition, achievement orientation was hypothesized to interact with reward in affecting importance and the mediation process. Prior to performing an interesting puzzle, high school students were offered a performance-contingent reward, and then indicated how personally important it was to do well. After doing three puzzles, all subjects received positive feedback regarding their performance. Multiple regression analyses indicated that importance was affected by the experimental variables, and had a positive causal impact on subsequent intrinsic motivation. It was found that the promise of performance-contingent reward positively affected importance for low achievers relative to high achievers, and that the mediation of subsequent intrinsic interest by importance differed according to reward by achievement combinations. Additionally, a direct effect revealed that performance-contingent rewards significantly enhanced interest, relative to no-reward controls receiving identical performance feedback.     

The differential effects of tangible rewards and praise on intrinsic motivation: A comparison of cognitive evaluation theory and operant theory

Substantial research indicates that tangible rewards, such as money, prizes, and tokens, decrease response rates by undermining intrinsic motivation. In contrast, praise appears to increase response rates by enhancing intrinsic motivation. Based on their interpretation of available evidence, many social-cognitive researchers warn not to use tangible rewards in applied settings and to use praise instead. Furthermore, they suggest that the differential effects of the two types of rewards on intrinsic motivation cannot be explained using principles of operant psychology. Cognitive evaluation theory provides one of the most recent and widely cited social-cognitive explanations for the different effects of the two types of rewards on intrinsic motivation (Deci & Ryan, 1985). However, a review of existing research found little support for the explanations based on this theory and revealed three potential confounding effects: (a) temporal contiguity, (b) the number of reward administrations, and (c) discriminative stimuli associated with reward availability. These three confounding factors provide explanations for the effects of tangible rewards and praise on intrinsic motivation that are consistent with principles of operant psychology.     

A meta-analytic review of experiments examining the effects of extrinsic rewards on intrinsic motivation

A meta-analysis of 128 studies examined the effects of extrinsic rewards on intrinsic motivation. As predicted, engagement-contingent, completion-contingent, and performance-contingent rewards significantly undermined free-choice intrinsic motivation (d = -0.40, -0.36, and -0.28, respectively), as did all rewards, all tangible rewards, and all expected rewards. Engagement-contingent and completion-contingent rewards also significantly undermined self-reported interest (d = -0.15, and -0.17), as did all tangible rewards and all expected rewards. Positive feedback enhanced both free-choice behavior (d = 0.33) and self-reported interest (d = 0.31). Tangible rewards tended to be more detrimental for children than college students, and verbal rewards tended to be less enhancing for children than college students. The authors review 4 previous meta-analyses of this literature and detail how this study's methods, analyses, and results differed from the previous ones.     

Dissociable influences of reward motivation and positive emotion on cognitive control

It is becoming increasingly appreciated that affective and/or motivational influences contribute strongly to goal-oriented cognition and behavior. An unresolved question is whether emotional manipulations (i.e., direct induction of affectively valenced subjective experience) and motivational manipulations (e.g., delivery of performance-contingent rewards and punishments) have similar or distinct effects on cognitive control. Prior work has suggested that reward motivation can reliably enhance a proactive mode of cognitive control, whereas other evidence is suggestive that positive emotion improves cognitive flexibility, but reduces proactive control. However, a limitation of the prior research is that reward motivation and positive emotion have largely been studied independently. Here, we directly compared the effects of positive emotion and reward motivation on cognitive control with a tightly matched, within-subjects design, using the AX-continuous performance task paradigm, which allows for relative measurement of proactive versus reactive cognitive control. High-resolution pupillometry was employed as a secondary measure of cognitive dynamics during task performance. Robust increases in behavioral and pupillometric indices of proactive control were observed with reward motivation. The effects of positive emotion were much weaker, but if anything, also reflected enhancement of proactive control, a pattern that diverges from some prior findings. These results indicate that reward motivation has robust influences on cognitive control, while also highlighting the complexity and heterogeneity of positive-emotion effects. The findings are discussed in terms of potential neurobiological mechanisms.     

The Impact of Performance-Contingent Rewards on Perceived Autonomy and Competence

Two studies examined the impact of performance-contingent rewards on perceived autonomy, competence, and intrinsic motivation. Autonomy was measured in terms of both decisional and affective reports. The first study revealed an undermining effect of performance-contingent rewards on affective reports of autonomy among university students, and an increase in reports of competence. Decisional autonomy judgements were unaffected by rewards. The second study replicated this pattern of findings among elementary school children. These results help resolve Cognitive Evaluation Theory's (E. L. Deci & R. M. Ryan, 1985; R. M. Ryan, V. Mims, & R. Koestner, 1983) and Eisenberger, Rhoades, et al.'s (R. Eisenberger, L. Rhoades, & J. Cameron, 1999) divergent positions on the impact of performance-contingent rewards on autonomy. The studies also included measures of intrinsic motivation.     

Intrinsic motivation and the effects of self-consciousness, self-awareness, and ego-involvement: An investigation of internally controlling styles

This study explored the relationships among dispositional self-consciousness, situationally induced-states of self-awareness, ego-involvement, and intrinsic motivation Cognitive evaluation theory, as applied to both the interpersonal and intrapersonal spheres, was used as the basis for making predictions about the effects of various types of self-focus Public self-consciousness, social anxiety, video surveillance and mirror manipulations of self-awareness, and induced ego-involvement were predicted and found to have negative effects on intrinsic motivation since all were hypothesized to involve controlling forms of regulation In contrast, dispositional private self-consciousness and a no-self-focus condition were both found to be unrelated to intrinsic motivation The relationship among these constructs and manipulations was discussed in the context of both Carver and Scheier's (1981) control theory and Deci and Ryan's (1985) motivation theory     

The role of different types of instrumentality in motivation,study strategies,and performance: Know why you learn,so you'll know what you learn!

Background: Two theories in the field of motivation and achievement, namely the future time perspective theory and goal theory, result in conflicting recommendations for enhancing students' motivation, because of their differential emphasis on the task at hand and on the future consequences of a task. Aims: We will present a framework consisting of four types of instrumentality that combines both perspectives. The implications of those different types for goal orientation, motivation, cognitive strategies, study habits and performance are investigated. Samples: Participants were a group of 184 first‐year nurse students with ages ranging from 18 to 45 years. Methods: Questionnaires were administered that measured instrumentality, goal orientation, motivation, deep and surface level learning strategies, study habits, and a manipulation check. At the end of the year, exam scores were collected. Results: The results showed that different types of instrumentality are related differently to the motivational, cognitive and achievement measures. Being internally regulated and perceiving the utility of the courses resulted both in a more adaptive goal orientation and higher intrinsic motivation, which led to the use of more adaptive cognitive strategies and to better study habits, which ultimately enhanced performance. Linking performance to extrinsic rewards and not seeing the utility of the course for the future yielded the opposite pattern. Conclusions: Type of instrumentality has indeed a differential influence on motivational, cognitive, and behavioural variables.     

Causality orientations moderate the undermining effect of rewards on intrinsic motivation

The present study tested the hypothesis that individual differences in autonomy or control causality orientation would moderate the undermining effect of rewards on intrinsic motivation. Equal numbers of autonomy- and control-orientated participants provided solutions to an interesting puzzle under reward or no reward conditions. Participants were then required to provide further solutions to the puzzle in a free-choice period. The time spent in solving the puzzle during the free-choice period constituted the dependent measure of intrinsic motivation. Results revealed a significant interaction effect of causality orientations and reward condition on intrinsic motivation. Control-oriented participants assigned to the reward condition exhibited significantly lower levels of intrinsic motivation compared to those assigned to the no reward condition. In contrast, there was no significant difference in intrinsic motivation levels across the reward conditions for autonomy-oriented individuals. Findings indicate that an autonomy-oriented causality orientation offered a degree of ‘protection’ from the undermining effect of rewards on intrinsic motivation. This is in keeping with self-determination theory in terms of the interactive effects of environmental events and interpersonal factors on intrinsic motivation.     

Competitively Contingent Rewards and Intrinsic Motivation: Can Losers Remain Motivated?

We explored the effects on intrinsic motivation and ego-involved persistence of winning versus losing a competitively contingent reward and, for losers, the additional effects of receiving either positive performance feedback or performance-contingent rewards. Winners were more intrinsically motivated than losers. Losers given an explicit normative standard who received positive feedback for meeting the standard were more intrinsically motivated than losers who did not receive the additional standard and feedback. Losers who received a performance-contingent reward for reaching the same explicit standard displayed less intrinsic motivation behaviorally assessed than did losers who got positive feedback, but the two groups did not differ on self-reported enjoyment. Effects on enjoyment were mediated by perceived competence, but effects on free-choice behavior were not. People who lost the competition showed more ego-involved persistence than people who won or did not compete.     

Pervasive negative effects of rewards on intrinsic motivation: The myth continues

A major concern in psychology and education is that rewards decrease intrinsic motivation to perform activities. Over the past 30 years, more than 100 experimental studies have been conducted on this topic. In 1994, Cameron and Pierce conducted a meta-analysis of this literature and concluded that negative effects of reward were limited and could be easily prevented in applied settings. A more recent meta-analysis of the literature by Deci, Koestner, and Ryan (1999) shows pervasive negative effects of reward. The purpose of the present article is to resolve differences in previous meta-analytic findings and to provide a meta-analysis of rewards and intrinsic motivation that permits tests of competing theoretical explanations. Our results suggest that in general, rewards are not harmful to motivation to perform a task. Rewards given for low-interest tasks enhance free-choice intrinsic motivation. On high-interest tasks, verbal rewards produce positive effects on free-choice motivation and self-reported task interest. Negative effects are found on high-interest tasks when the rewards are tangible, expected (offered beforehand), and loosely tied to level of performance. When rewards are linked to level of performance, measures of intrinsic motivation increase or do not differ from a nonrewarded control group. Overall, the pattern of results indicates that reward contingencies do not have pervasive negative effects on intrinsic motivation. Theoretical and practical implications of the findings are addressed.     

动机的结构与效应：基于动机连续体的视角

动机是影响学生学业成绩重要的非认知因素。通常认为动机对学习是有利的,但研究发现并非所有动机都是有益的,这提醒研究人员有必要区分出各种不同的动机类型。现有研究一致表明内部动机对学业成就具有积极且长期稳定的效应,而外部动机的效应尚存在争议。具体而言,有研究者认为外部动机对学业成就是有害的,但部分研究发现外部动机在某些特定情况下能够发挥着不可或缺的积极作用。 针对上述存在的争议,本研究梳理了“动机连续体”这一概念,从两个方面的研究来进行阐释。首先,从大理论的角度整合了动机的相关理论,以自我决定理论的动机连续体为基础,引出相关理论,如兴趣理论、目标理论、期望价值理论、自我价值理论、强化理论、社会认知理论等。这些理论可以解释动机连续体中一种或几种类型的动机。 其次,从动机的结构及其如何影响结果变量这一角度对上述理论及其应用进行总结,主要存在四个观点。传统的争论集中在单维结构和多维结构之间。单维结构认为内部动机和外部动机是相互对立的,即内部动机会促进绩效,而外部动机会降低绩效。多维结构认为内部动机和外部动机能够相互累加,都能促进绩效。近年来,研究人员提出了更复杂的结构来整合上述观点。譬如半辐射结构使用全局因子来表示动机的整体水平,同时允许特定因子表示具体动机类型。这种半辐射结构借用了双因子模型,提取了一个“自我决定因子”,同时允许每种特定动机类型具有自身独特的影响。此外,乘积模型表明这两种动机之间存在交互作用,即外部动机的对结果的影响会因个体内部动机水平的变化而变化,反之亦然。 综上所述,本研究总结了关于动机连续体的不同理论之间的优缺点,回顾了动机结构的不同假设及其应用。在不同学科中对动机的测量方式、动机对不同结果变量的不同影响以及动机的跨文化研究等问题仍然是目前研究的热点。对动机结构和效应的深入探讨可以更好地帮助研究人员将不同的理论应用于适当的情境中。     

Intrinsic motivation as a function of extrinsic financial rewards and subjects'locus of control

Two studies investigating the effects of pay on the intrinsic motivation of subjects varying along the dimension of locus of control were conducted. It was hypothesized that internals, who should assign greater weight to the competency aspect of rewards they receive, would manifest increasing intrinsic motivation as pay increased. Externals, who should be more likely to focus on the controlling aspects of rewards, were expected to show decreases in intrinsic motivation as rewards increased. In Study 1, where both the controlling and competency aspects of the rewards offered were deliberately kept vague, the hypotheses were supported. In Study 2, where the controlling aspect of the pay offered was made salient by making pay contingent upon performance, high pay undermined the intrinsic motivation of both internals and externals. It was suggested that only when the controlling aspect of pay is not salient will the intrinsic motivation of externals and internals be differentially affected. Support for the hypothesis that internals and externals differentially weight available information when making causal attributions was also noted.     

Setting limits on children's behavior: The differential effects of controlling vs. informational styles on intrinsic motivation and creativity

The imposition of external constraints on an activity has frequently been shown to undermine intrinsic motivation. Given that limits must often be set upon peoples' activities, especially in parenting and education, the present study addressed the question of whether limits can be set without undermining intrinsic motivation for the activity being limited. Using cognitive evaluation theory, contrasting limit setting styles of either a controlling or informational nature, or no limits, were placed upon forty-four first- and second-grade children engaged in a painting activity. The intrinsic motivation, enjoyment, creativity, and quality of artistic production were expected to be decreased by controlling limits relative to informational and no-limits, which were not expected to differ from each other. The results provided substantial support for these predictions, suggesting that limits can be set without undermining intrinsic motivation if they are informational in nature. Support was also found for the consensual assessment of creativity method recently developed by Amabile (1982a). Results of the study are discussed along with the general relation between creativity and intrinsic motivation.     

削弱效应是否存在：工作场所中内外动机的关系

外部动机是否削弱内部动机？已有研究结论并不一致。澄清这一问题的有效途径是对外部动机的恰当分类。研究以165名企业员工为研究对象, 针对动机的动态性特点, 采用两时点纵向研究的方法, 以自我决定理论对外部动机的分类为基础, 探讨3种不同内化程度的外部动机--外在动机、内射动机和认同动机与内部动机的关系及外部动机内化程度与自主支持的关系。研究结果表明：(1)控制性、非内化的外部动机, 即外在动机和内射动机削弱员工的内部动机; (2)自主性、内化的外部动机, 即认同动机不会削弱员工的内部动机, 而是促进和保护内部动机; (3)自主支持环境促进员工外部动机内化的程度(即认同动机的增加)。最后, 研究对所取得结果的管理意义进行了讨论。     

Extrinsic and intrinsic motivation at 30: Unresolved scientific issues

The undermining effect of extrinsic reward on intrinsic motivation remains unproven. The key unresolved issues are construct invalidity (all four definitions are unproved and two are illogical); measurement unreliability (the free-choice measure requires unreliable, subjective judgments to infer intrinsic motivation); inadequate experimental controls (negative affect and novelty, not cognitive evaluation, may explain "undermining" effects); and biased metareviews (studies with possible floor effects excluded, but those with possible ceiling effects included). Perhaps the greatest error with the undermining theory, however, is that it does not adequately recognize the multifaceted nature of intrinsic motivation (Reiss, 2004a). Advice to limit the use of applied behavior analysis based on "hidden" undermining effects is ideologically inspired and is unsupported by credible scientific evidence.