Frequently Asked Questions - IALS

• What is the International Adult Literacy Survey?
• What can we learn from IALS?
• How was the IALS data collected?
• When was the IALS data collected?
• How did IALS measure literacy proficiency?

When were the IALS data collected?

IALS data were collected by the participating countries in successive cycles of data collection between 1994 and 1998, using nationally representative samples of the adult population ages 15-65.

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