Combine search terms with Boolean operators

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Boolean operators 2

Boolean operators

Use Boolean operators AND, OR, NOT to combine search terms

AND: all terms must occure.g. reading AND dyslexia (restrict)

OR: at least one of the terms must occure.g. reading OR dyslexia (expand)

NOT: the second term should not occure.g. reading NOT dyslexia (exclude)

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dyslexia reading

reading dyslexia

Boolean operators 3

Method 1: search across Multiple Fields

Boolean operators 4

Search sample: attributions of students

students

Boolean operators 5

attribution

AND : both terms must occur

Boolean operators 6

Combine with OR

Results: 79 records on both students and attributionInclude the term fear in a search for anxiety

anxiety

fear

Boolean operators 7

Results: records that all contain at least one of the terms

A new search: coercion NOT violence

coercion

violence

Boolean operators 8

Method 2: combined search using Advanced Search

Boolean operators 9

attribution and

Multiple operators can be used

Control the order of precedence with parentheses

(fear or anxiety)

Boolean operators 10

Boolean operators 11

Boolean operators

restrict with AND expand with OR exclude with NOT

use parentheses in searches with more than one Boolean operator

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