Alex sees his mother mixing ingredients for a cake. Later, Alex takes a bowl and spoon out of the cabinet and pretends to mix some imaginary ingredients. Of which theory of gender development would this be a good example?

Social learning theory

Explanation: Through observational study within our social environment, we acquire a lot of knowledge and information which individuals try to replicate, mimick or model. The act of modeling an observed character, attitude or behavior in our social environment is a proposition made by Alex Bandura called the Social learning theory.

In the context above, Alex tried to model or recreate a scene of the behavior or action he observed from his mother while mixing cake ingredients by mixing imaginary ingredients of his own.