PSYCH 115 Lecture Notes - Lecture 20: Internal Validity, Statistical Significance, Research
Document Summary
Genetics and behavior across time and cultures. Starts with a hypothesis or educated guess . Hypotheses in science are formulated so that they are testable. The variable that causes or influences behavior. The behavior influenced by the independent variable. Internal validity: extent to which results of a study are due to the independent variable. External validity: extent to which results of a study are generalizable to the population it"s studying. Ways to increase internal validity by minimizing confounds. Helps to protect against biases in evaluating data. Statistical significance does not imply clinical meaningfulness. Researchers sometimes mistakenly see all participants as one homogenous. The extent to which results are applicable to the larger population being. Extensive observation and detailed description of a single client. Foundation of early historic developments in psychopathology. Assess the degree to which levels of certain variables are linked to levels of other. Example: higher levels of education are linked to higher levels of income.
