Read the paragraph below and answer the question that follows. "andy was asked to speak in a school assembly about a fundraising opportunity for a fellow student who had recently been diagnosed with leukemia. andy's stomach hurt and his hands were cold. "steady man," he thought. "you can do this. it's for tim. he needs our ." andy could picture the students wanting to get involved. it occurred to him now that he wasn't just giving a speech. he had something worthwhile to say. which strategies did andy use to reduce his apprehension? select all that apply." be prepared. use muscle relaxation techniques. get experience. think positively. focus on communicating to the audience.

Explanation:

He thought positively. It wasn't he who was important. It was Tim. It wasn't his nervousnes that was the point. It was that he was speaking to an audience that wanted to help but didn't know how exactly.

I don't think he (successfully) used muscle relaxation techniques. He had had stomach upset and cold hands. The only thing we know for sure is that he thought of other things which were far more important.

We don't know if he was prepared. We do know that he thought what he was doing was important.

The paragraph is silent about how getting experience might affect him.

Certainly, he was thinking about he audience.

So here are the ones we know for sure.

The iffy one are

The ones that no real mention was made were

this null effect is caused by a weak manipulation and ineffective internal validity. in a scientific study, as the one dr. morimoto is trying to perfom, internal validity refers to the confidence placed in the cause-effect relationship and to how well an experiment is done and able to eliminate confounding variables.