The correlation between identical twins' IQ scores is:

When children observe their same-sex parents behaving in certain ways and imitate that behavior, a psychologist uses which theory to explain the situation?

a) Freudian psychoanalysis b) Piaget's theory of development c) gender schema theory d) learning theory

How wise is popular wisdom? In Chapter 1, we pondered how many old sayings have other old sayings that contradict them. For example, a common saying is "You can't teach old dogs new tricks." But we also hear "You are never too old to learn."

Now that you have read Chapter 2, design a research study in order to test these sayings. Provide your reasoning in selecting a particular research method, subjects, and other key details. What will be an ideal response?