A Metacrawler Is

question 53

Multiple Choice

A metacrawler is

• A) a highly specialized directory that focuses on a specific subject matter area.
• B) a search engine that examines only newsgroup messages.
• C) a type of aggregator that offers subscribers all-day information on their desktops.
• D) a special type of engine that searches several search engines at once.
• E) a search engine that can access the hidden Internet.

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Definitions:

Probability

A measure of the likelihood that an event will occur, expressed as a number between 0 and 1, where 0 indicates impossibility and 1 indicates certainty.

Cross-Sectional Study

A study in which people (or animals) of different ages are compared at a given time.

Longitudinal Study

A research design that involves repeated observations of the same variables (e.g., people) over short or long periods of time.

Gender Relationships

The social and cultural constructs that define the interactions, roles, behaviors, and expectations between genders within a society.