Validity is based on…

• Cognitive Clusters – Long-term retrieval– Short-term memory– Processing speed– Auditory processing– Comprehension

knowledge– Fluid reasoning

• Factor Analysis• Cluster Inter-

correlations Joint Analyses

• Differential Relationships

• Growth Curve Comparisons

Reliability

• Reading Aptitude• Mathematics Aptitude• Written Language Aptitude• Knowledge Aptitude• Oral Language Aptitude

Predictive Validity

• Scholastic AptitudeWechester Full ScaleSB-JV Composite

K-ABCMental Processing Composite

Correlations with other Intelligence Test

• Early Development

• Standard

• Extended

Cognitive Ability

Test• Memory for Names• Memory for Sentences• Visual Matching• Incomplete Words• Visual Closure• Picture Vocabulary• Analysis-Synthesis

Test• Visual-Auditory Learning• Memory for Words• Cross Out• Sound Blending• Picture Recognition• Oral Vocabulary• Concept Formation