Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Groups with different superscripts have significantly different scores.
| Drying method | Mean score (standard deviation) |
|---|---|
| Air-dry | 1.50a(0.16) |
| Hair dryer, without heat | 1.17b(0.13) |
| Hair dryer, with heat | 1.29ab(0.25) |
| Heat block | 1.54a(0.25) |
