Hello I Have A Question About Apa 6th Edition Level Headings (As Per The Apa Manual). Is Level Four Bolded And Italicized Or It Is Not Bolded?
Yes, level 4 headings (according to Publication Manual of the APA - 6th ed.) are both bolded and italicized (as well as indented and end with a period. See the linked site, from the APA Style Blog (where the information from the manual is reproduced).
Also note that in a lowercase paragraph heading such as level 4, the first letter of the first word is uppercase and the remaining words (unless a pronoun) are lowercase,
Please let us know if you have trouble accessing the link. If you are using the Manual itself, the information is on page 62.