Answer:
<h3>d. extraneous.</h3>
Explanation:
Extraneous variables are variables which occur unintentionally while doing a research. When a researcher tries to find if an independent variable has an effect on a dependent variable, they may be chances that unexpected variable might occur which may affect the results of the research.
Here, the researcher who measured aggressive responses by people when exposed to violent and non-violent movies did not take into account the room temperature.
The room temperature may act as an extraneous variable which may have an effect on the result of his experiment.
Answer:
Using specific answers
Explanation:
Being specific to gather precise and accurate answers, and It gives you a question that is not vague or hard to answer. "Ask questions like, does the shape of dew drops change in different areas", or "significance of different sized dew drops". These questions are more specific than, "whats up with dew drops", or just searching "dew drops".