Study 004 / choice
Make a choice in each of two assortments.
This voluntary demonstration changes how information is presented. Some details, including any simulated claims, are explained after the final step. You can reveal them or leave at any time.
Your responses stay in this browser tab. No research data is submitted.
Read the mechanism firstStudy 004 / Choice architecture
01 / Observation
Larger assortments add possibilities while changing the work of comparison.
02 / Hypothesis
Assortment size may change deferral, confidence, and satisfaction, depending on the task and the person.
03 / Mechanism
Search effort, preference uncertainty, and trade-offs are possible contributors. More choice is not universally worse.
04 / Experiment
Choose a fictional notebook colour from six and twenty-six options in randomised order. The six are randomly selected from the twenty-six, and their relative order is preserved between presentations. The replay uses the same six twice. Rate confidence and satisfaction after each choice; deferral is always available.
05 / Result
The reveal compares your two choices and ratings. Order and learning effects remain, even when presentation order is randomised.
06 / Alternative explanations
A favourite colour exists only in the larger set, screen size, motor effort, practice, fatigue, or preference for variety.
07 / Real-world use
Menus, plan comparisons, product catalogues, recommendation grids, and configuration screens.
08 / Ethical dimension
Reducing options can clarify a decision or remove valuable alternatives. The purpose and availability of the omitted options matter.
09 / Countermeasure
Set two or three criteria before opening the full assortment. Narrow the set deliberately and keep a route back to the rest.
Short summaries in our own words: what the research found, why it belongs here, and where its conclusions stop. These papers provide background; they do not report results from your visit.
Field and laboratory experiments
Across shopping and laboratory tasks, Iyengar and Lepper found situations in which extensive choice reduced motivation compared with smaller assortments. Their work motivates measuring deferral and satisfaction alongside selection. Our colour task changes the materials and procedure, so it cannot reproduce their result simply by offering more options.
Primary research
This meta-analysis found an average choice-overload effect close to zero, with considerable variation between studies. That is an essential counterweight to the familiar “less is more” story. Your preferences, the available options, and the work of comparing them matter; a larger grid need not reduce confidence.
A demonstration can make a mechanism inspectable. One person’s response, or a replay after disclosure, cannot identify a causal effect or establish nonconscious influence.