Population
Naturalistic Observation
Random Sample
Theory
Survey
Replication
Sampling Bias
Hypothesis
Operational Definition
Case Study
A sample that fairly represents a population because each member has an equal chance of inclusion
A testable prediction often implied by a theory
A descriptive technique in which one individual or group is studied in depth in the hope of revealing universal principles
A technique for ascertaining the self-reported attitudes or behaviors of a particular group, usually by questioning a representative, random sample of the group
A flawed sampling process that produces an unrepresentative sample
Observing and recording behavior in naturally occurring situations without trying to manipulate or control the situation
All those in a group being studied, from which samples may be drawn
Repeating the essence of a research study usually with different participants in different situations to see whether the basic finding extends to other participants and circumstances
An explanation using an integrated set of principles that organizes observations and predicts behaviors or events
Carefully worded statement of the exact procedures used in a research study.
