U09 Psych 100 Lecture Notes - Lecture 1: Selective Serotonin Reuptake Inhibitor, Central Nervous System, Frontal Lobe
Document Summary
Introduction to psych (chapter 2) (resource for studying) (for classes in general) Hindsight bias: believing one would have foreseen after learning the outcome. Theory: explanation that organizes and predicts behaviors or events. Operational definition: defining an abstract idea with concrete conditions that are measurable. Replication: repeating a study to determine validity of a previous study. Psychological studies must be reliable (consistent/similar results each time) and valid (measures what it is supposed to measure/ is appropriate for the study: reliability is necessary but not sufficient for validity. b. If a study is not reliable, then it cannot be valid. Population: the complete set of individuals of interest. Biased sample: sample that is not representative of the population. Random sampling: ensures that a sample represents the population. 3rd variable that causes the other two (3rd variable problem). Independent variable (iv): variable that the experimenter manipulates. Note: confounding variable for experimental, 3rd variable problem for.
