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 Atlantic slave trade or transatlantic slave trade, also called slave trade, occurred throughout the Atlantic Ocean between the 16th and 19th centuries.
Founded in the 1960s, Fairtrade certification represents an initiative that brings together social responsibility, sustainability and competitiveness for small and medium producers.
Fairtrade Labeling Organizations (FLO) is a non-profit trading company based on social responsibility and whose purpose is to ensure fairness in international trade.
