PSY 250 Lecture Notes - Lecture 7: Level Of Measurement, Behavioural Sciences, Likert Scale
Document Summary
White house executive order using behavioral science insights to better serve american people. Get more psychologists involved to help endorsee programs. Behavioral science insights can support a range of national priorities, including. Improving access to educational opportunities and support for success in school. Measurement- assignment of scores to an individual on some characteristic. Field of psychometrics- field dedicated to measuring different characteristics. Measuring constructs- variables in psychology that are difficult to observe with the naked eye; personality, memory. Self-report measures- surveys, likert scale (pain, stress, aggressiveness, self-esteem, personality) Behavioral measures- observing people in a lab or natural settings, usually a rating on behavior or task performance (virtual reality, reaction tests) Physiological measures- heart rate, brain waves, skin response, mris, sleep measurements, movement measurements. Internal validity- our ability to infer cause and effect. Reliability of results- related to consistency of results over time.
