Subjective experience

A number of studies have challenged aspects of Piaget's theory. Two examples are Diamond's (1985) study on infants' ability to reach for hidden objects and Gelman and colleagues' studies on preschoolers understanding of number

Review either Diamond's findings or Gelman's findings, and discuss how the findings challenge an aspect of Piaget's theory. What will be an ideal response?

The authors of your text state that the basic dilemma of the social psychologist is the trade-off between internal and external validity. What is the best way to resolve this dilemma?

a. Focus on internal validity, because it is the most important for establishing causal relationships. b. Focus on external validity, because this demonstrates how research generalizes to other people and situations. c. Use both observational and correlational approaches to research. d. Replicate results using both laboratory and field studies to maximize both types of validity.