PSYC 1010 Chapter 2: Chapter 2
Document Summary
Lessons from clever hans: the mystery, the solution, facts, theories, and hypotheses, the lessons. Types of research strategies: research designs, research settings, data-collection methods. Statistical methods in psychology: descriptive statistics, inferential statistics. Minimizing bias in psychological research: avoiding biased samples, reliability and validity of measurements, avoiding biases from observers" and subjects" expectancies. Ethical issues in psychological research: research with humans, research with nonhuman animals, formal principles and safeguards for ethical research. A theory is an idea, or a conceptual model, that is designed to explain existing facts and make predictions about new facts that might be discovered. Any prediction about new facts that is made from a theory is called a hypothesis. A correlational study can be defined as a study in which the researcher does not manipulate any variable, but observes or measures two or more already existing variables to fi nd relationships between them.
