Question

1. which of the following is a disadvantage of a controlled experiment?

the effect of the variable is apparent.
the results are more valid.
it does not replicate real world conditions.
it is easy to repeat.

Explanation:

To determine the disadvantage of a controlled experiment, we analyze each option:

• "The effect of the variable is apparent" is an advantage as it helps in identifying variable impacts.
• "The results are more valid" is an advantage because controlled conditions reduce confounding factors.
• "It does not replicate real world conditions" is a disadvantage. Controlled experiments often simplify or control variables, making the setup different from natural, real - world scenarios.
• "It is easy to repeat" is an advantage as reproducibility is a strength of controlled experiments.

Answer:

C. It does not replicate real world conditions.