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.
The reasons for deforestation are :
<h3>What is deforestation?</h3>
Deforestation can be regarded as an act of cutting tress without replacement and destruction to forest.
Therefore it can be caused as a result of :
- agricultural expansion
- wood extraction
- infrastructure expansion
Learn more about deforestation on:
brainly.com/question/20700779
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Answer:
A. a replication of studies
Explanation:
A researcher performs a previous study following the same procedures to see if she will get the same results.This is an example of a replication of studies.
Carrying out a previous research under the same exact conditions to see if the results will be the same is simply a replication of study. Replication of studies is necessary for the validation of results gotten from the previous research.