Psychology 1000 Lecture Notes - Lecture 2: Likert Scale, Internal Validity, External Validity

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Laura Fazakas-de Hoog

Document Summary

Science: peer-reviewed, maintain rigorous standards for honesty and accuracy, reproducible results demanded, failures are searched for and studied closely, over time more is learned about process under study. Theories: formal statements that explain how and why certain events are related: frameworks for explaining events, broader than hypotheses. Incorporates existing facts/observations within a single framework: are testable, supported by new research findings. Is parsimonious is as simple as possible. Variable: the factor that you want to explore. Sample: a part of a population, or group that a researcher wants to study & make inferences about. A good sample: are random: each person has equal chances of being in the sample, are representative: same characteristics as population of study (age, gender, education, this is important for drawing conclusions. September 21/23, 2015: telephone: fast and efficient, interviewer bias, mail: avoids interviewer bias, response rates are low, personal interview: more flexible, costly, and interview bias.