Examlex
_____ has the longest span of any period of development and the number of people in this age group has been increasing dramatically.
Research Method
A systematic plan, procedure, or strategy used to investigate, acquire, or analyze information on a subject.
Field Research
The collection of data outside a laboratory, office, or classroom setting, often in its natural context or place of occurrence.
Experiments
Systematic procedures carried out under controlled conditions to discover, test, or demonstrate a fact or principle.
Unbiased
Characterized by a lack of prejudice or partiality; impartial in perspective or opinion.
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