Self-Fulfilling Prophecy

Definition

Robert K. Merton coined the term self-fulfilling prophecy in 1948. He described it as “a false definition of the situation evoking a new behavior which makes the originally false conception come true” (Merton, 1948).

In other words, a belief that is false at first can trigger behavior that makes it true. The prophecy does not predict the future; it helps create it.

Predictions, fears, and worries about the future can all set this process in motion.

The idea builds on the Thomas theorem. Thomas and Thomas (1928) argued that when people define a situation as real, it becomes real in its consequences.

Merton saw these effects as a structural feature of social life, not rare accidents. A dominant group’s false beliefs about a minority can create the exclusion and closed opportunities that seem to confirm them.

In principle, the cycle can be broken. The remedy is to abandon the false definition, rather than to urge disadvantaged people to try harder.

The self-fulfilling prophecy has also been referred to as the “bootstrapped induction,” the “Barnesian performativity,” or “The Oedipus effect” (Biggs, 2011).

The Four-Step Cycle

An interpersonal prophecy unfolds in four steps, moving from one person’s expectation to another person’s behavior.

1. Expectation: The perceiver, the person holding the belief, forms a view of a target, such as a pupil, recruit, or patient. It may rest on a label, test score, reputation, or stereotype.
2. Behavior: The perceiver treats the target differently, usually without meaning to, through tone, eye contact, attention, encouragement, or how demanding the task is.
3. Response: The target reacts to this treatment and may internalize it. Warm, challenging treatment tends to raise effort; cool, low-demand treatment tends to lower it.
4. Confirmation: The target now behaves as expected, so the perceiver sees proof of a belief that was unfounded. The loop closes and can repeat.

The key link is the mediating behavior. Expectations do not travel telepathically; they change the perceiver’s conduct, and that conduct changes the target’s.

Suppose a teacher wrongly believes that Ben is exceptionally able. She calls on him more often, waits longer for his answers, and sets harder problems.

Ben works harder and grows in confidence. By the end of the year he really is near the top of the class, and she credits her judgment, never suspecting that it created the talent.

Self-Fulfilling Prophecy Examples

Placebo Effect

An example of a self-fulfilling prophecy is known as the placebo effect. Patients are randomly split into two groups. One group receives the real treatment, and the other receives a placebo, an inactive “fake treatment.”

The placebo group often still improves. This happens even though the treatment itself has no active ingredient.

The belief that a treatment will work, not the treatment itself, is what fulfills the prophecy.

The reverse also occurs. The nocebo effect, in which negative expectations about a treatment produce real adverse symptoms, shows the same mechanism running the other way.

Stereotype Threat

Stereotype threat is the fear that one’s own behavior might confirm a negative stereotype about one’s group (Steele, 1997). That fear alone can produce the very outcome it worries about.

A well-known example involves standardized testing. Steele (1997) argued that the threat of confirming a stereotype, not a real gap in ability, can depress performance on these tests.

Worrying about confirming the stereotype made students anxious during the test. That anxiety then lowered their scores, seeming to “confirm” the very stereotype that caused it.

Strictly, stereotype threat differs from an interpersonal prophecy. The target’s own awareness of a negative stereotype, not another person’s expectation, impairs performance under evaluative pressure.

The two share an endpoint, a stereotype helping to create the deficit it alleges, and can compound each other.

Types

There are two types of self-fulfilling prophecies: self-imposed and other-imposed (Adler, 2012). Both lead to the same result, yet they are different approaches to getting there.

• Self-imposed: Your own expectation about yourself drives your actions and brings about the outcome you predicted.
• Other-imposed: Other people’s expectations change how you act, and your behavior then confirms what they expected.

Self-Imposed Prophecies

In a self-imposed prophecy, one’s own expectations are the causal factor for one’s actions. A public speaking scenario shows how.

A man named John has failed at public speaking before. He is extremely nervous and believes he will fail.

As he begins his speech, he stumbles over his words, forgets his lines, and fails to produce a coherent message. Because John believed he would fail, he did.

Self-imposed prophecies can also be positive. Expecting to do well can raise effort, persistence, and calm, which improves the outcome.

This links the idea to self-efficacy, a person’s belief in their capacity to succeed at a task.

The same pattern drives some low-mood and anxiety cycles. A person who believes they are unlikeable may act withdrawn and guarded. Others respond coolly, and that response seems to prove the belief.

The remedy differs by type.

An other-imposed prophecy is broken by changing the behavior of the person holding the expectation. A self-imposed one is addressed by changing the person’s own expectations and the avoidance they set off.

Other-Imposed Prophecies

An other-imposed self-fulfilling prophecy arises when other people’s expectations change how an individual acts. A classic example is the fortune teller scenario.

Cindy, a fortune teller, tells a man named Peter that he will one day become a therapist. Believing her, Peter starts to see himself that way.

Over time, he pursues that identity and eventually becomes a therapist. The fortune teller’s prediction helped create the outcome it named.

Other-imposed prophecies also fuel racial and gender stereotypes. Expecting someone to fit a stereotype can lead to treating them in ways that box them into it.

For example, expecting a person of one race to act a certain way can shape how they are treated. That treatment can push them toward the stereotype.

Similarly, if women are stereotyped as suited only to lesser roles, they may fulfill that stereotype. They can then fail to reach their full potential.

The key idea behind both types of self-fulfilling prophecy is the same: an unfounded, false belief spurs behavior that treats it as real. Over time, that behavior builds the very reality the belief predicted.

Not every prediction that comes true is self-fulfilling. Many are simply accurate. Others are self-defeating: a forecast of failure that spurs someone to prepare harder and succeed.

Showing a true self-fulfilling prophecy requires evidence that the expectation caused the outcome through behavior (Jussim & Harber, 2005).

Word, Zanna, and Cooper (1974)

Other-imposed prophecies can run through stereotypes. Word, Zanna, and Cooper (1974) tested how, in a brief job interview.

The colder-treated applicants in the second study were White. The design therefore separated the treatment from group membership.

Discrimination can perpetuate itself, even among well-meaning interviewers.

Snyder, Tanke, and Berscheid (1977) found a similar effect with the “what is beautiful is good” stereotype. In getting-acquainted phone calls, men who believed from a photograph that they were talking to an attractive woman behaved more warmly and sociably.

The women, who did not know what the men had been told, responded with more animated, confident, likeable behavior. The men’s expectation drew out the very qualities it presumed.

The Pygmalion Effect

“When we expect certain behaviors of others, we are likely to act in ways that make the expected behavior more likely to occur.” (Rosenthal & Babad, 1985).

The Pygmalion effect is the positive other-imposed prophecy. When someone such as a teacher holds high expectations, the other person’s performance tends to improve.

The name comes from a Greek myth, retold in Ovid’s Metamorphoses, and from George Bernard Shaw’s play of the same name.

In the myth, Pygmalion is a sculptor who falls in love with his own creation. He begs the gods for a wife just like her.

The gods grant his wish, and the statue comes to life. Rosenthal and Jacobson borrowed the name for their own classroom findings.

Rosenthal and Jacobson (1968)

A famous study on other-imposed self-fulfilling prophecies is the Pygmalion Effect. Rosenthal and Jacobson (1968) tested whether student achievement could become self-fulfilling based on a teacher’s expectations.

On average, the Bloomers gained two IQ points in verbal ability, seven points in reasoning and four points in overall IQ.

Rosenthal and Jacobson offered a mechanism. They argued that expectations travel through subtle teacher behavior: a warmer emotional climate, more challenging material, richer feedback, and more chances to respond.

According to the Pygmalion effect, the teachers’ expectations became internalized by the students as part of their self-concept. Once internalized, students acted in line with these new beliefs about themselves.

Later work found similar effects in many settings. A review of the first 345 expectancy studies concluded that the effects were reliable across research, teaching, and everyday interaction (Rosenthal & Rubin, 1978).

Replications of the classroom findings have been mixed, however, as Critical Evaluation explains below.

Implications

Stereotypes are often part of self-fulfilling prophecies. Claude Steele’s research (1997) on stereotype threat found that students who fear confirming a negative stereotype about their group often worry during a test. That worry alone can lower their performance, ironically confirming the very stereotype they feared.

Stereotype threat has been measured in high-achieving African American students as well as highly ranked female math students (Spencer, Steele, and Quinn 1999).

These findings have far-reaching implications. They can help or harm people well beyond the classroom.

When parents treat their children as capable and independent, the Pygmalion effect suggests those children tend to internalize that view and act accordingly.

The reverse also holds. A parent who views their child as incapable or weak may see the child live down to that expectation.

The same pattern shows up at work. A manager who raises expectations for their team tends to see performance rise in turn.

Eden (1992) examined this in organizations. Leaders who expect more tend to communicate confidence, delegate demanding work, and give richer feedback, and their teams tend to perform better.

The Golem counterpart is more troubling. Supervisors who write off employees as unpromising can entrench poor performance.

Schools face the same risk. Teachers can form expectations from a pupil’s gender, ethnicity, social class, or appearance, and streaming or tracking can turn those expectations into fixed ability groups.

Low expectations appear to bear most heavily on already-disadvantaged pupils.

Labels can act as prophecies too. Once someone is called “difficult” or “disruptive”, others may read ambiguous behavior through that label and respond in ways that draw out matching conduct. Labeling theory makes the same point about deviance.

The Golem Effect

The Pygmalion effect has a dark twin: the Golem effect. Here, low expectations actively lower a target’s performance rather than raise it. The mechanism runs in reverse.

The name comes from Jewish folklore’s destructive artificial being (Babad, Inbar, & Rosenthal, 1982). A teacher, manager, or clinician who expects little from someone tends to give them less attention and less challenge. That person often performs accordingly.

The Golem effect is harder to study than its positive counterpart. Testing it means deliberately lowering someone’s expectations, which raises real ethical concerns. Yet its everyday, low-visibility harm on disadvantaged pupils or employees may exceed the more famous Pygmalion successes.

Experimenter Expectancy: Rosenthal and Fode (1963)

The same mechanism operates inside research. Experimenter expectancy occurs when a scientist’s expectations subtly bias how they treat participants, record ambiguous data, or cue responses. No intent to deceive is involved.

The finding made blind designs a methodological cornerstone. In a double-blind procedure, neither the participant nor the experimenter knows the condition.

It also set up the classroom question: if expectations could move rats, what might a teacher’s expectations do to a child?

The Causal Loop

A self-fulfilling prophecy may be a form of causality loop, also known as feedback loops.

They are described as “a system in which two or more aspects of the system influence each other” (Loper, 2014).

In abstract terms, Event A leads to event B, leads to event C, leads to event D, which then leads to event A again. The cycle then repeats.

These loops, in turn, are perfect examples of feedback cycles. Once the cycle begins, it is difficult to remove oneself from the situation and prevent uncontrollable actions and outcomes. The prophecy itself serves as the drive for an action, and thus it is self-fulfilling.

Merton exemplified his causal loop process in his book Social Theory and Social Structure in 1949. In it, he shows how causal loops can produce a self-fulfilling prophecy.

He depicted a bank run as an example (Merton, 1948). A rumor spreads that a bank is failing. Depositors panic and withdraw their money.

The bank then genuinely starts to struggle, so even more people withdraw their money too. Eventually, it collapses. The rumor has become fact.

Once a loop like this gains momentum, the outcome becomes very real. Stopping it is hard, because the cause was rumor or superstition rather than fact from the start.

Examples

Cognitive behavioral therapy targets one such causal loop: thoughts affect feelings, feelings affect behaviors, and behaviors feed back into thoughts. Interrupting the cycle by changing one’s actions is a major step toward recovery for many people living with depression.

Common to many diagnosed with depression are negative thoughts and untrue self-statements of their abilities or worth.

A person may start a causal loop with a simple statement such as “I can’t ever do anything right.” That belief brings negative feelings, which lead to negative actions or neglected self-care.

If they keep acting in unhelpful ways, they may fulfill their own prediction and sink further into low mood.

Learning Check

Which of the following is an example of the self-fulfilling prophecy?

1. Jane believes she will fail her exam, so she doesn’t study and ends up failing.
2. John thinks he is very good at basketball, so he practices daily and becomes a star player.
3. Mary is scared of dogs, so she avoids going to parks where dogs might be present.
4. Mike thinks he’s bad at cooking, so he never tries and orders take-out instead.

Answer: Options 1 and 4 are self-fulfilling prophecies.

Jane expects to fail, so she skips studying and then fails. Mike believes he’s a bad cook, so he never tries and always orders take-out. Each belief directly causes the behavior that then confirms it.

Critical Evaluation

The self-fulfilling prophecy is one of psychology’s most cited ideas, but the evidence for it is more limited than the classic demonstrations suggest.

• Flawed Founding Study: Pygmalion in the Classroom was criticized for an unreliable IQ test and questionable statistics.
• Real But Modest Effects: Naturally occurring teacher expectations mostly track pupils’ true ability rather than distorting it.
• Effects Fade Over Time: Expectancy effects tend to shrink from one year and one teacher to the next, rather than build up.

Flawed Founding Study

Reviewers questioned the study almost immediately. Thorndike (1968) pointed to serious problems with the IQ test used at the youngest ages, where most of the reported gains were concentrated. Some pre-test scores were implausible.

A later reanalysis by Elashoff and Snow (1971) reached a similarly skeptical verdict, arguing the original claims did not survive closer scrutiny. The most famous demonstration of the effect is, ironically, one of its weakest pieces of evidence.

Timing matters too.

A synthesis of eighteen experimental studies found that large expectancy effects appeared mainly when false beliefs were planted before teachers met their pupils (Raudenbush, 1984). Once teachers already knew the children, the effect shrank toward zero.

This is a real limit on the founding study’s relevance, since teachers in ordinary classrooms almost always already know their pupils before forming impressions.

Real But Modest Effects

Lee Jussim leads the most influential modern criticism. He argues self-fulfilling prophecies are real but modest. Naturally occurring teacher expectations predict pupil achievement mostly because those expectations are accurate.

Teachers, on the whole, are reasonably good judges of which children are already doing well (Jussim & Harber, 2005; Madon, Jussim, & Eccles, 1997). Once that accuracy is accounted for, the genuinely self-fulfilling part of the correlation is small.

This reframes the entire debate about the theory.

The real question is not how powerfully expectations distort reality, but how limited that distorting power usually is.

Where effects do persist, they tend to fall on the most vulnerable and stereotyped groups. That is where they matter most (Gentrup, Lorenz, Kristen, & Kogan, 2020).

Effects Fade Over Time

A natural worry is that small yearly effects snowball into large gaps across a school career. The evidence usually points the other way.

Self-fulfilling effects tend to fade rather than build up. Each new teacher re-forms their own expectations from fresh evidence (Jussim & Harber, 2005). One biased year does not doom the next.

Not every child is equally exposed.

The exception is telling. Where bias does persist across years, it falls hardest on the most stereotyped pupils, exactly where the ethical stakes are highest.

Even so, the effect is not merely academic. Because it falls hardest on already-disadvantaged pupils, interventions that target teacher expectations remain worthwhile even under this more modest, modern reading of the evidence.

Contemporary Research

Research since 2015 has largely confirmed the “small-but-real, accuracy-over-bias” picture. It asks more precisely when, and for whom, expectations become self-fulfilling. The theme: expectations are mostly accurate, their self-fulfilling part is real but modest, and it falls hardest on pupils least able to absorb it.

Expectations in Real Classrooms

The anchor is a large longitudinal study by Gentrup and colleagues (2020).

Teacher feedback accounted for only part of the transmission, so other, subtler behaviors must also carry expectations. The study moves the field from asking whether expectancy effects happen toward asking how, and how much.

Can Teacher Expectations Be Changed?

A systematic review and meta-analysis asked whether expectations can be improved. De Boer, Timmermans, and van der Werf (2018) reviewed 19 teacher expectation interventions. Some changed teacher behavior, some raised awareness of expectancy effects, and others addressed the beliefs behind the expectations.

Interventions could raise teacher expectations and, in turn, student achievement. The summary effects were Hedges’ g = 0.38 and 0.30, respectively.

The review suggested that teacher support for an intervention mattered more than its type. Too few interventions existed to test this statistically.

Averages can hide variation. Gentrup and colleagues (2020) found the effects stronger for some pupil groups than for others. Jussim and Harber (2005) noted that effects persist mainly for the most vulnerable and stereotyped groups.

References

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Further Information

• The self-fulfilling prophecy in close relationships: Rejection sensitivity and rejection by romantic partners. Journal of Personality and Social Psychology, 75 (2), 545.
• The impact of mothers’ gender-role stereotypic beliefs on mothers’ and children’s ability perceptions. Journal of Personality and Social Psychology, 63 (6), 932.
• The self-fulfilling nature of positive illusions in romantic relationships: Love is not blind, but prescient. Journal of Personality and Social Psychology, 71 (6), 1155.
• Snow, R. E. (1995). Pygmalion and intelligence? Current Directions in Psychological Science, 4(6), 169–171.