APA Format for Numbers

**Never** use both the numeral and the word. Use the following rules for determining whether to use the numeral (5) or the word (five).

**Rules**

- If the number is nine or less, use the
*word.* - If the number is 10 or greater, then use the
*numeral.*

However, there are two exceptions to these rules.

- The
*word*is always used if the number is the first word of a sentence. - Use
*all numerals*if a number 9 or less is in the same sentence as a word 10 or higher.

**Examples**

- There were six girls in the sample.
- There were 36 boys in the sample.
- Twelve research assistants helped administer the questionnaire.
- There were 4 boys and 12 girls in the sample.
- One hundred twenty-three children were in the treatment group.
- As you can see in the table, 63% of the participants returned the questionnaire.
- Children read 26 books throughout the treatment.
- Seventy-three percent of the sample were under the age of 12.

**Practice**

For the following sentences, pick whether the word or numeral should be used.

- This study included
**(seventy-two, 72)**participants. - Because of unreadable responses,
**(four, 4)**questionnaires were unusable. - There were
**(seventeen, 17)**teachers in the control group. **(Fifty-four, 54)**students were observed.- Participants included
**(fifteen, 15)**children in JS1,**(nine, 9)**children in JS2, and**(two, 2)**children in JS3. - There were
**(three, 3)**treatment groups. - The average score of the class was
**(sixty-two percent, 62%).** **(Nineteen, 19)**children were randomly selected.

**Answers**

- 72 because the number is greater than nine.
- four because the number is nine or less.
- 17 because the number is greater than nine.
- Fifty-four because it is the first word of the sentence.
- 15, 9, 2 because one of the numbers is greater than nine.
- three because the number is nine or less.
- 62% because the number is greater than nine.
- Nineteen because it is the first word of the sentence.