According to the authors, the limitations of the design do not allow other variables, such as , to be ruled out as possible influences on the drug and alcohol use outcomes of 12-step participants.
a. maturation confound
b. time confound
c. motivational confound
d. participation confound

idk

explanation:

about the letter or who wrote the letter

as you read the passage below, consider how dana gioia uses

evidence, such as facts or examples, to support claims.

reasoning to develop ideas and to connect claims and evidence.

stylistic or persuasive elements, such as word choice or appeals to emotion, to add power to the ideas expressed.

explanation:

hey! what was the rest of the question?