Research Flashcards
Theory
A set of concepts that explain a phenomenon;
The first step in the scientific method
Hindsight Bias
Tendency to believe, after learning an outcome, that you predicted it; “I told you so”
Hypothesis
A testable explanation of the correlation of two or more events; a prediction
Operational Definition
A definition of a variable or condition in the context of the procedure used to determine its presence
Replication
The repetition of a research study with different situations/ different subjects
Case Study
Observation of an individual or a group of individuals
Naturalistic Observation
Method of studying behavior in which the observer does not interfere at all; this allows the observer to watch the subject in their natural environment
Survey
Collection of data from a variety of people
Sampling Bias
Errors that can occur if not a proper selection of people is made for the experiment
Population
Amount of people living in an area
Random Sample
Selection of individuals from a large population
Correlation
Relationship
Correlation Coefficient
The degree of the relationship between two variables
Scatterplot
A graph used to illustrate the correlation between two variables
Illusory Correlation
The phenomenon of seeing a relationship between two variables where there isn’t one
Experimental Group
The people who receive the treatment in a psychological experiment
Control Group
The group of people who do not receive the treatments in a psychological experiment
Double Blind
A study in which neither the experimenters, nor the ones being experimented on, know the members of either group
Placebo
A pill that someone is given that doesn’t actually cure your disease, but you think it does
Independent Variable
The stimulus which acts independently of all other factors
Confounding Variable
The variable that was not taken into account at the beginning of the experiment
Dependent Variable
The variable that is affected by the independent variable
Validity
The extent to which an experiment measures what it was meant to test
Descriptive Statistics
The summary of a statistic in relation to the people studied