2.2.6. Cognitive ability
Cognitive ability was measured using two well-established, 33-
item power tests from the WorkKeys Foundational Skills System
(ACT, 2006). The WorkKeys Reading for Information Assessment
measures the skills individuals use when they read and use written
text, and is based on materials that reflect the actual demands of the
workplace. The WorkKeys Applied Mathematics Assessment measures
the skills individuals use when they apply mathematical and
problem-solving techniques to work-relevant problems. WorkKeys
tests are administered to a large number of individuals each year,
and have been shown to correlate highly with other established
measures of cognitive ability such as the ACT Assessment (ACT,
2006). Both tests display high internal consistency reliabilities, with
KR-20 values for large-scale administrations ranging from .87 to .90
for Reading for Information and .92 for Applied Mathematics (ACT,
2006). Each participant completed both the Reading for Information
and Applied Mathematics assessments, and an overall cognitive
ability score was obtained by combining scores from the two tests.
Cognitive ability scores were normally distributed in this sample.
2.2.6. Cognitive abilityCognitive ability was measured using two well-established, 33-item power tests from the WorkKeys Foundational Skills System(ACT, 2006). The WorkKeys Reading for Information Assessmentmeasures the skills individuals use when they read and use writtentext, and is based on materials that reflect the actual demands of theworkplace. The WorkKeys Applied Mathematics Assessment measuresthe skills individuals use when they apply mathematical andproblem-solving techniques to work-relevant problems. WorkKeystests are administered to a large number of individuals each year,and have been shown to correlate highly with other establishedmeasures of cognitive ability such as the ACT Assessment (ACT,2006). Both tests display high internal consistency reliabilities, withKR-20 values for large-scale administrations ranging from .87 to .90for Reading for Information and .92 for Applied Mathematics (ACT,2006). Each participant completed both the Reading for Informationand Applied Mathematics assessments, and an overall cognitiveability score was obtained by combining scores from the two tests.Cognitive ability scores were normally distributed in this sample.
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2.2.6. Cognitive ability
Cognitive ability was measured using two well-established, 33-
item power tests from the WorkKeys Foundational Skills System
(ACT, 2006). The WorkKeys Reading for Information Assessment
measures the skills individuals use when they read and use written
text, and is based on materials that reflect the actual demands of the
workplace. The WorkKeys Applied Mathematics Assessment measures
the skills individuals use when they apply mathematical and
problem-solving techniques to work-relevant problems. WorkKeys
tests are administered to a large number of individuals each year,
and have been shown to correlate highly with other established
measures of cognitive ability such as the ACT Assessment (ACT,
2006). Both tests display high internal consistency reliabilities, with
KR-20 values for large-scale administrations ranging from .87 to .90
for Reading for Information and .92 for Applied Mathematics (ACT,
2006). Each participant completed both the Reading for Information
and Applied Mathematics assessments, and an overall cognitive
ability score was obtained by combining scores from the two tests.
Cognitive ability scores were normally distributed in this sample.
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