In general, double-space all parts of an APA Style paper, including the abstract; text; block quotations; table and figure numbers, titles, and notes; ...
To double-space the whole document, go to Design > Paragraph Spacing, and choose Double . Tip: To double-space only part of the document, select the paragraphs you want to change, go to Home > Line and Paragraph Spacing, and choose 2.0.
To the right of Colors and Fonts, you'll find the Paragraph Spacing option. Click this to open the dropdown menu, From the dropdown menu, choose Double.