PsychologyJuly 16, 2026

parsimony

/ˈpɑːrsɪmoʊni/

Definition

The principle of selecting the simplest scientific model that adequately explains the observed data, often by minimizing the number of unnecessary parameters.

Etymology

The word originates from the Latin 'parsimonia,' meaning frugality or sparingness, derived from the verb 'parcere,' to spare. It entered English in the 16th century, retaining the core sense of being economical or thrifty.

In the news

In the context of evaluating cognitive models, the article highlights the need for researchers to balance a model's goodness of fit with parsimony. This ensures that models are not overly complex and remain efficient in their explanatory power.

New Content From Advances in Methods and Practices in Psychological Science

Read the full article ↗

Association for Psychological Science – APS

Related words

Learn a word like this every day

Meet one new word every morning.

Newspoken pulls one carefully chosen word from the day’s news — with a clear definition, context, and light review that makes it stick. Get it on your phone.

Not for marketing. One email on launch day.