William James
the founder of the school of functionalism
What contributes to psychology as a science?
asking questions and investigating in order to reveal things
Description
explaining behaviors and values
Prediction
what might happen in the future
Control
drawing true conclusions from cause and effect relationships
Explanation
understanding the “why” behind something
Types of research studies
experimental, correlational, observational
Experimental study
identifies the cause and effect relationship by manipulating IV to measure DV
Condition
the variation of the IV that a participant is exposed to
Correlational study
variable associations made when the IV can’t be manipulated due to ethical and/or practical limitations
Alternative explanations
other reasons why a relationship might be present
Correlation coefficient (r)
signifies strength of association; sign (+ or –) is the direction of association, and distance from 1 represents strength
Observational study
no interactions are made with the study
External validity
can the observations be generalized to norm population?
Types of data analysis
descriptive statistics and inferential statistics
Descriptive statistics
summarizes and organizes the data in an informational manner
Inferential statistics
helps to draw conclusions from the data
Data collection methods
coding behaviors, self-reporting, response performance, and psychophysiological assessment
Individual variability
things cannot be generalized to universality because everyone is unique
Operational definitions
described and measured definitions of variables
Construct validity
ensure that what’s being measured was intended to be measured
Reliability
a measurement that can be repeated with similar or same results
Internal validity
controlled factors that interfere with cause-effect relationship
Replication
are real findings being found?