I believe the answer is stage 3, if that helps
Answer:
Within-Subjects Experiments
Explanation:
Within-Subjects Designs: this is a form of experimental design in which the participants involved is exposed or subjected to all the conditions.
However, in this case, Alberto, is using Within-Subject Designs (simultaneous) by exposing all the participants to answer arithmetic problems while listening to metal, and then country, and finally classical music simultenously.
The multiple conditions here are: arithmetic problems to solve, listening to different types of music in a sequence that mixed the different types.
<span>His nonviolent actions were inspirational in other nonaggressive movements around the world.</span>
T, congress votes on the laws he suggests.
I hope I helped!
