Methodology Flashcards
Hindsight Bias
the tendancy for people to exaggerate, after knowing that something occurred, how much they could have predicted before it occurred.
What are the three types of research methods
- observational (description)
- correlational (prediction)
- experimental (causality)
Observational Method
The technique whereby a researcher observes people and systematically records measurements or impressions of their behavior
Ethnography
The method by which researchers attempt to understand a group or culture by observing it from the inside, without imposing any preconceived notions they might have.
Inter judge reliability
The level of agreement between two or more people who independently observe and code a set of data; by showing that two or more judges independently come up with the same observations, researchers ensure that the observations are not the subjective, distorted impressions of one individual.
Archival Analysis
A form of observational method in which the researcher examines the accumulated documents, or archives of a culture.
Correlational Method
The technique whereby two or more variables are systematically measured and the relationship between them is assessed
Correlation coefficient
A statistical technique that assesses how well you can predict one variable from another, for example, how well can you predict peoples weight from their height.
Surveys
Research in which a representative sample of people are asked questions about their attitudes and behavior.
Random selection
A way of ensuring that a sample is representative of a population by giving everyone in the population an equal chance of being selected for the sample.
Limits of the causational method
Correlation does not eual causation
Experimental method
the method in which the researcher randomly assigns participants to different conditions and ensures that these conditions are identical except for the independent variable
Independent variable
The variable a researcher changes or varies to see if it has an effect on some other variable.
Dependent Variable
The response that is hypothesized to depend on the independent variable. all participants are measured on this variable.
Random assignment to condition
A process ensuring that all participants have an equal chance of taking part in any condition of an experiment; through random assignment researcher can be relatively certain that differences in the participants personalities or backgrounds are distributed evenly across conditions