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. Author manuscript; available in PMC: 2010 Jan 1.
Published in final edited form as: J Am Acad Child Adolesc Psychiatry. 2009 Jan;48(1):42–50. doi: 10.1097/CHI.0b013e31818b1c4e

Figure 2.

Figure 2

Differential Item Functioning (DIF) results: Severity parameters (β)

Figure 2 shows the results of tests of Differential Item Functioning (DIF) for each individual CD symptom. Each item is listed across the bottom of the figure. Squares indicate the severity parameters for each item for females, severity parameters for males are indicated by diamonds. Error bars provide the standard errors for these estimates. Items with significant DIF are identified by asterisks in the lower portion of the figure. DIF suggests that items do not indicate the same level of severity in males and females.