Ruth Culham, Ed.D., is the president of The Culham Writing Company and former Unit Manager of the Assessment Program at Northwest Regional Educational Laboratory in Portland, Oregon. She is the recognized expert in the traits of the writing assessment field and author of 6+1 Traits of Writing: The Complete Guide, Grades 3 and Up (Scholastic, 2003) and 6+1 Traits of Writing: The Complete Guide for the Primary Grades (Scholastic, 2005) plus other trait-based resources. She creates and conducts teacher workshops, and designs national/international institutes for writing assessment and instruction.

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