Conservation is the knowledge that an object exists even when it is not in sight.

In school, you may have learned the rule of how to determine the area of a circle. The formula was πR2. This formula always guarantees a solution and that you will be able to determine the area. Thus, the formula is an example of an algorit

the tendency to search for evidence that fits one's beliefs while ignoring any evidence to the contrary

an English psychologist known for work in statistics, as a pioneer of work statistics and coining up the G factor

People raised in a different culture, or even a different economic situation, from the one in which the designer of an IQ test is raised are not likely to perform well on such a test

A researcher who studies different age groups, or cohorts, at one time is using the cross-sectional design.

the sudden perception of relationships among various parts of a problem, allowing the solution to the problem to come quickly

Critical periods are times when the environment can influence the development of the embryo.

A test can fail in validity while still being reliable.

a block to problem solving that comes from thinking about objects in terms of only their typical functions

Ch. 7: a fertilized egg

the first stage in Piaget's theory, during which the child relies heavily on innate motor responses to stimuli

The ability to learn from one's experiences, acquire knowledge, and use resources effectively in adapting to new situations or solving problems.