- Studies that use single-item measures do not differ in effect size from those that use multiple-item measures.
- The number of items used to measure attitudes does not influence the effect of the independent variables on attitudes.
WARC subscribers can sign in to keep reading
WARC helps you to plan, create and deliver more effective marketing
Prove your case and back-up your idea
Get expert guidance on strategic challenges
Tackle current and emerging marketing themes
WARC consistently delivers valuable insights that help to make me look like an expert in front of my colleagues and clients.
Strategy Partner, Fetch
We work with 80% of Forbes' most valuable brands* and 80% of the world's top top-of-the-class agencies.