Counterbalanced designs allow the researcher to isolate the main effects due to condition and control for order and sequence effects only if there is no interaction between the procedural variables and the independent variables.
Answer:
The third option, "His books, in my opinion, are so similar that it's difficult to distinguish one plot from the other." Is the correct answer.
Explanation:
This sentence has an appositive and the commas are being used correctly.
<h3>An appositive is basically a noun or a noun phrase that further identifies another noun right next to it. </h3><h2>
Rule of thumb:</h2>
- Use commas around an appositive when it is <em>NOT</em> essential to the sentence or information.
- One word appositivies <u>(generally)</u> don't need commas.
- If the appositive gives weight or meaning to a sentence, then you don't need to put it around the appositive.
