A Researcher Has Tested Three Different Age Groups at One

question 139

Multiple Choice

A researcher has tested three different age groups at one time and then retested each group two and four years later. The researcher is using a(n)

• A) sequential design.
• B) analytic design.
• C) cohort design.
• D) time-lag design.
• E) longitudinal design.

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Definitions:

Adaptive Immune Responses

The part of the immune system that evolves to recognize and specifically target pathogens or foreign substances based on previous encounters.

Innate Immunity

The body's first line of defense against pathogens, involving barriers and cellular responses not specific to a particular pathogen.

Phagocytosis

The cellular process of engulfing and digesting particles or cells.