Chapter 2 Textbook Flashcards
___ ___ is the tendency for people to exaggerate how much they could have predicted the outcome AFTER knowing what has happened
hindsight bias
__ is an organized set of principles that can be used to explain observed phenomena
Theory
___ is a testable statement or idea about the relationship between 2 or more variables.
hypothesis
what is an operational definition
the precise specification of how variables are measured or manipulated
3 primary types of research designs
1) observational
2) correlationsal
3) experimental method
2 types of observational research designs. Describe
1) ethnographic design: method by which researchers attempt to understand a group or culture by observing it from the INSIDE without imposing any preconceived notions that they may have.
2) archival analysis: a form of the observational method whereby the researcher examines accumulated documents of a culture.
what is interjudge reliability
the level of agreement between 2 or ore people who independently observe and code a set of data.
Observational designs use __-____ _____ tests to ensure that the observations are NOT SUBJECTIVE
inter-judge reliability.
according to interjudge reliability, if two raters come up with a similar score, it ensures that:
the observations are not subjective.
T/F: An observational method is descriptive
true
T/F: a correlational method is causal
false. it is descriptive
describe the correlational method
measuring 2 or more variables and assessing the relationship between the 2 of them. Assess how much one can be predicted by the other, and determines the STRENGTH of the relationship
what kind of statistic is used in a correlational study?
a correlational coeficient (from -1 to 1)
Give an example of a type of correlational study
a SURVEY: research in which a representative sample of people are asked questions about their attitudes of behavior. Allows research to judge the relationship between variables that are often difficult to observe.
benefit and drawbacks of a survey
pro: allows a large amount of responses to be gathered by a representative segment of the population
con: response accuracy
- correlation does not prove causatio.