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Double-Blind
An experimental procedure in which neither the subjects of the experiment nor the persons administering the experiment know the critical aspects of the experiment, to prevent bias.
Single-Blind
A study or experiment design where only the participants are unaware of which group (experimental or control) they belong to, preventing bias in their responses.
Cross-Sectional
A research method that involves analyzing data from a population at a specific point in time to identify patterns or relationships.
Eight Ages of Social Development
Erik Erikson's theory that proposes eight stages of human development, each characterized by a different psychological conflict that must be resolved.