Deci's work back in 1975 really shook up how we think about what makes us tick. He suggested that the reason we do things often boils down to whether we are doing them because we genuinely enjoy the process or because we expect a reward or punishment. This idea - the tug-of-war between internal enjoyment and external incentives - is central to understanding human drive. It's a fascinating area of psychology because it touches on everything from why you love your hobby to why you slog through tedious work for a paycheck.
What's the difference between loving something and doing it for a prize?
When we talk about motivation, we're really talking about the 'why' behind our actions. Psychologists generally split this into two big buckets: intrinsic and extrinsic motivation. Intrinsic motivation is that warm, fuzzy feeling of doing something purely because it's inherently satisfying. You read a book not because you have to, but because you love the story. You learn a new skill because the act of mastering it feels good. Extrinsic motivation, on the other hand, is doing something to get something else - a reward, like money, praise, or a good grade. It's the 'carrot' or the 'stick' approach. The question that has puzzled researchers for decades is: when we introduce those external rewards, do they help, or do they actually sabotage the internal enjoyment?
The early research suggested that rewards were always good. If you pay someone, they work harder, right? But the science got much more nuanced. Lepper, Keavney, and Drake (1996) provided some foundational commentary, pointing out that the relationship isn't always straightforward. They highlighted that the context matters immensely. If the activity is already something people find naturally engaging, adding a reward can sometimes change how they perceive that activity.
This idea was further explored by Deci (1975) (preliminary), who laid out the framework for Cognitive Evaluation Theory. Essentially, this theory suggests that when we are motivated intrinsically, we feel a sense of competence and autonomy - that we are capable and that we are in control of our actions. When an external reward is introduced, especially if it feels controlling or conditional, it can undermine those core feelings. For example, if you paint a beautiful field just because you love art, that's intrinsic. If your art teacher then says, "You only get an A if you use this specific shade of blue," you might suddenly feel like you are painting for the grade, rather than for the joy of painting. That external condition can chip away at the internal spark.
This concept of 'overjustification effect' - where an expected external reward diminishes the internal motivation - has been repeatedly tested. Forrest, Morgeson, Mithas, and Beatty (2013) looked at how incentives affect behavior in a marketing context, reinforcing that the nature of the reward and how it interacts with the task's inherent appeal is crucial. The message is that rewards aren't magic keys; they are complex variables.
The concept of 'crowding' really captures this idea. Frey and Jegen (2000) surveyed the evidence for Motivation Crowding Theory. In simple terms, crowding suggests that when an activity that was previously self-motivated becomes associated with an external reward, the original, self-driven motivation gets 'crowded out' or diminished. It's like the external incentive builds a wall around the natural interest.
Shenaq (2021) (preliminary) provided more recent support for this, examining the effects of external rewards on intrinsic motivation. The findings generally suggest that while small, informational rewards might be fine, large or controlling rewards are more likely to cause people to shift their focus from the activity itself to the reward itself, thereby reducing their genuine interest.
Even creativity, which is deeply linked to intrinsic drive, seems susceptible. Hennessey (2000) (preliminary) explored how rewards interact with creativity, suggesting that while some external recognition can kickstart an idea, if the reward becomes the primary focus, the spontaneous, exploratory nature of true creativity can suffer. Sansone and Harackiewicz (2000) also urged us to look beyond just the rewards, suggesting that fostering environments that support autonomy and competence - the internal feelings - is often more powerful than dangling a bonus.
What are the best ways to build genuine drive without relying on prizes?
If the problem isn't the lack of rewards, but the type of reward or the way they are implemented, what's the solution? The consensus from this body of research points away from simple transactional exchanges ("do this, get that") and toward building an environment that supports psychological needs. The goal, it seems, is to nurture the internal engine rather than constantly trying to fuel it with external gasoline.
The key elements repeatedly emphasized are autonomy, competence, and relatedness. Autonomy means giving people a sense of ownership over their work and decisions. Instead of dictating the exact steps, managers or educators can frame the task as a problem to be solved, allowing the individual to choose their approach. This taps directly into the feeling of self-determination, which is a powerful intrinsic motivator.
Competence relates to feeling effective. People are motivated when they feel they are getting better at something. This doesn't require a trophy; it requires meaningful feedback that points toward growth. If you can structure tasks so that people are constantly challenged just enough - not too easy to be boring, not too hard to be frustrating - you keep that internal engine running smoothly. This aligns with the principles suggested by Sansone and Harackiewicz (2000) when they urged us to look beyond just the tangible rewards.
Relatedness, while not always the focus of the initial papers, is also crucial. Feeling connected to the people you are working with, and feeling that your work contributes to a larger, meaningful whole, provides a deep, intrinsic satisfaction that no bonus check can replicate. When people feel their efforts matter to a community or a shared purpose, the motivation becomes self-sustaining.
In summary, the science suggests that while extrinsic rewards have their place - they can be useful for initiating behavior or signaling basic compliance - relying on them as the primary driver is risky. They risk turning an act of passion into a transaction. The most strong, lasting motivation comes from designing experiences where the act itself is rewarding, where the individual feels in control, and where the work connects them to something larger than themselves.
Practical Application: Engineering Intrinsic Drive
Understanding the tension between intrinsic and extrinsic motivators isn't just academic; it requires actionable design. The goal, therefore, is not to eliminate rewards entirely, but to strategically structure environments and tasks so that the reward acts as a temporary scaffold, not the primary fuel source. This requires implementing protocols that build autonomy, mastery, and purpose - the core pillars of intrinsic motivation.
Consider a learning or performance setting. Instead of immediately attaching a tangible reward (e.g., a bonus, a grade boost) to the completion of a difficult module, implement a phased approach. For the first two weeks, the structure should be highly scaffolded: Daily, dedicate 45 minutes to the core, challenging task. The immediate feedback should be framed as 'progress tracking' rather than 'scoring.' The goal here is to build competence without external pressure. The reward for this initial phase should be social recognition or access to more complex, self-directed material (autonomy). This lasts for a 14-day period.
In the subsequent phase (Weeks 3-6), gradually reduce the frequency of direct feedback. Shift the focus from 'Did you finish?' to 'What did you discover?' Introduce peer-to-peer review sessions, requiring participants to teach or critique each other's work. This promotes mastery through teaching. The timing here is crucial: feedback should be given within 24 hours of the work being submitted, but the content of the feedback must be process-oriented ("I noticed you struggled with X here; perhaps reviewing Y concept would help") rather than outcome-oriented ("This section is weak"). The duration of these sessions should be 60 minutes, three times a week. By the end of this six-week cycle, the external reward structure should be almost entirely removed, leaving the individual motivated by the inherent satisfaction of solving the complex problem or contributing unique insight.
This protocol moves the locus of control from the external source (the reward giver) to the internal source (the desire to solve the problem or improve skill). The initial, small, non-monetary 'rewards' act as positive reinforcement for the process of engagement, slowly allowing the intrinsic reward - the feeling of competence - to take over.
What Remains Uncertain
While the framework above provides a strong model for behavioral design, it is critical to acknowledge the significant unknowns. The relationship between reward timing, reward type, and motivational decay is not fully mapped. For instance, we lack clear guidelines on the optimal 'fade-out' schedule - how quickly should extrinsic rewards be withdrawn to prevent a sudden motivational crash? A withdrawal that is too abrupt risks triggering a strong negative reaction, potentially leading to learned helplessness.
Furthermore, the concept of 'purpose' remains highly subjective. What constitutes meaningful purpose for one individual might be meaningless noise for another. Current models often treat purpose as a fixed variable, when in reality, purpose itself can be a malleable outcome of successful engagement. More research is needed to quantify the threshold at which extrinsic rewards shift from being helpful scaffolding to being actively detrimental, especially across diverse cultural and professional contexts. We also need better longitudinal data tracking the interplay between cognitive load, emotional exhaustion, and the sustainability of intrinsic motivation over decades, rather than just short project cycles.
Core claims are supported by peer-reviewed research including systematic reviews.
References
- Lepper M, Keavney M, Drake M (1996). Intrinsic Motivation and Extrinsic Rewards: A Commentary on Cameron and Pierce's Meta-Analysis. Review of Educational Research. DOI
- Deci E (1975). Cognitive Evaluation Theory: Effects of Extrinsic Rewards on Intrinsic Motivation. Intrinsic Motivation. DOI
- Forrest V. Morgeson Iii, Sunil Mithas, Sharon E. Beatty (2013). Journal of the Academy of Marketing Science. Journal of the Academy of Marketing Science. DOI
- Bruno S. Frey, Reto Jegen (2000). Motivation Crowding Theory: A Survey of Empirical Evidence. SSRN Electronic Journal. DOI
- Shenaq R (2021). The Effects of Extrinsic Rewards on Intrinsic Motivation. SSRN Electronic Journal. DOI
- Hennessey B (2000). Rewards and creativity. Intrinsic and Extrinsic Motivation. DOI
- Sansone C, Harackiewicz J (2000). Looking beyond rewards. Intrinsic and Extrinsic Motivation. DOI
- Brown J (2026). Can extrinsic rewards induce intrinsic motivation for virtuous behaviour? A classroom-based pilot st. Journal of Character Education. DOI