Early on in the Development of His Theory of Cognitive

question 33

Multiple Choice

Early on in the development of his theory of cognitive development, Piaget made use of which method(s) ?

• A) Survey research
• B) Controlled experimentation
• C) Interviews and observation
• D) Ethnography and focus groups

---

Definitions:

Explosion

A rapid increase in volume and release of energy in an extreme manner, typically with the generation of high temperatures and the release of gases.

Reactants Mixing

The process of combining substances that react with each other to form products in a chemical reaction.

Aqueous Salt Solutions

Solutions made by dissolving salt in water, where the water is the solvent and salt is the solute.

Reaction Rate

The reaction rate refers to the speed at which reactants are converted into products in a chemical reaction, influenced by factors such as concentration, temperature, and catalysts.