Question

What is the hypothesis, independent and dependable variables, and how would you avoid bias in this experiment?

"Your research has led you to believe that heightened levels of adrenaline will decrease a person’s ability to pay attention and want to conduct an experiment to test it. You’ve decided that you’ll run your experiment by administering adrenaline to one group of people and a placebo to another before making them watch a documentary on the New Wave of British Heavy Metal and giving them a short quiz afterwards."

Answer 1

Step-by-step explanation:

Hypothesis: Heightened levels of adrenaline will decrease a person's ability to pay attention.

Independent variable: Adrenaline administration (or placebo administration)

Dependent variable: Ability to pay attention (measured by quiz scores after watching the documentary)

To avoid bias, you can implement the following steps:

Use a double-blind design where neither the participants nor the researchers administering the adrenaline or placebo know which one the participant has received.

Randomly assign participants to either the adrenaline or placebo group to control for any extraneous factors that may affect the outcome.

Ensure that the documentary and quiz are standardized and administered in the same manner to both groups.

Use a large sample size to increase the validity of your results.

Conduct an unbiased analysis of the data, such as using statistical methods to control for confounding variables.