When should I use periods?
- At the end of a sentence
…And they lived happily ever after.
- For the initials of a name
Harrison, H. F.
- When using U.S. and U.K. as adjectives
She is a U.S. citizen
- For Latin abbreviations
e.g., i.e.,
- For era designations
B.C.E., B.C., A.D., C.E.
When should I not use periods?
- When abbreviating states of provinces.
Washington DC; BC; NY
- For acronyms and abbreviations
APA, IQ, NBA
- For abbreviation of academy degrees
PhD, EdD, MD, PsyD, LCSW.
- After URL in a text
You may find this information at andreschinchin.com
- After measurement abbreviation
cm, hr, kg, min
* use a period to abbreviate inches in.
Adapted from: (APA, 2020, pp. 154-57)
Exercise
Sources
The American Psychological Association. (2020). Publication Manual of the American Psychological Association 7th edition.
