When a Respondent Fails to Answer a Survey Question in a Personal

question 13

Short Answer

When a respondent fails to answer a survey question in a personal interview,this is called an item ____________________.

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Definitions:

Species Richness

The number of species in a community.

Tropical Rain Forest

A lush, species-rich forest biome that occurs in tropical areas where the climate is very moist throughout the year. Tropical rain forests are also characterized by old, infertile soils.

Unit Area

A specific measurement used to describe the quantity of an object or substance within a defined area of space.

Keystone Species

A species whose presence in an ecosystem largely determines the species composition and functioning of that ecosystem.