Learn how to change behavior.

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Behavior change and behavior design models

Tactics that change behavior

Goal Setting
Goal Setting

Goal setting simply refers to a person choosing a specific result to aim at achieving. This might include an outcome (e.g. a goal weight) or a behavior (e.g. exercise 90 minutes 3 times a week).

Smart Defaults
Smart Defaults

Defaults refer to what happens if a person makes no choice or goes with a pre-selected choice. The influence of defaults is a foundational component of behavioral economics.

Perhaps the most famous example of defaults is the difference between opt-in and opt-out organ donation programs. While not universal, several studies have found that the rate of organ donation consent in a population seems to be influenced by the default (i.e., what happens if a person does not check a box or change the pre-selected preference on a form).

Smart defaults do not only refer to one-off events, however. In the well-known Save More Tomorrow program, participants were not only included in a savings program by default, but the amount they saved was also changed over time automatically (again by default). Similarly, other behavior change programs have default settings that include at-home medication or food delivery, rules-based reminders on different platforms, etc.

Random Screening
Random Screening

Random screening refers to unannounced checks of whether someone has been compliant with a given behavior.

These are frequently used via biomarkers, e.g. testing if someone has been taking recreational drugs by delivering a urine test.

Framing Effects
Framing Effects

A framing effect refers to changes in people's choices within a given set of options based on how the options are presented. This are typically associated with behavioral economics, as it violates utility theory's premise that people will choose according to a rational assessment of the outcome.

The most common example of this is posing a question as a loss or a gain. In several instances, people have been found to choose differently based on whether a proposition is losing lives vs saving them, an X% of infection vs. a Y% chance of immunity, etc despite the options being mathetmatically identical between the two framings.

Motivational Interviewing
Motivational Interviewing

Motivational interviewing (MI) is a therapeutic approach that aims to influence behavior by eliciting goals, motivation, insights, and specific behavioral plans through structured dialog. It's largely associated with William Miller and Stephen Rollnick, and bears some relation to the Socratic method (as does the original cognitive therapy approach). While originally developed as part of a treatment for substance abuse, the method has been generalized and found empirical support in assisting behavior change in diet, exercise, and other areas.

Goal Setting
Goal Setting

Goal setting simply refers to a person choosing a specific result to aim at achieving. This might include an outcome (e.g. a goal weight) or a behavior (e.g. exercise 90 minutes 3 times a week).

Identity Priming
Identity Priming

Identity priming refers to attempting to influence someone's behavior by emphasizing their being part of to a certain group or being a certain type of person. These often leverage social norms—particularly injunctive norms—and introjected regulation.

For example, voter turnout campaigns often emphasize the person's membership to the community or previous voting history in reminder letters.

Social Benchmarking
Social Benchmarking

Social benchmarking refers to comparing a person's behavior, trends, or status to others. Often, merely providing data on others can change behavior by leveraging social norms.

For example, letters comparing homeowners' use of electricity with peers were found to significantly reduce the amount of energy used by high-consumption households compared to non-comparison messages.

Products that change behavior

Research on behavior change