While Collecting Data by Conducting Personal Interviews in Homes,Jake Interviews

question 78

Multiple Choice

While collecting data by conducting personal interviews in homes,Jake interviews the most accessible individual within the household,rather than using random selection.This increases the potential of

• A)sampling error.
• B)response bias.
• C)nonresponse error.
• D)office error.
• E)Both a and b.

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Definitions:

Entity

Something that exists independently with a distinctive identity, especially in the context of databases where it refers to an object about which data can be stored.

Cardinality

In database design, it refers to the uniqueness of data values contained in a column; in relationships, it describes the attributes of the relationship between tables.

Entity

An entity can refer to any individual, company, organization, or system that exists as a singular, identifiable unit.

Ternary Relationship

A type of association in database modeling where three entities participate together in a relationship.