The document introduces cognitive psychology and its key approaches and methods. Cognitive psychology studies mental processes like thinking, reasoning, perception, attention, problem-solving and memory. It views the mind as operating like a computer, with inputs, storage, and outputs. Key methods include laboratory experiments like the Stroop test. The cognitive approach is scientific but lacks ecological validity since experiments are conducted in controlled settings. It also ignores biological influences on behavior.

1. Introduction to cognitive psychology

4. Methods of investigation

5. The Stroop test