Knowledge Item: CA-Client-Patient Characteristics-25
Relationship of Total Needs and Vulnerability to Individual Need
and Vulnerability Indicators
This Knowledge Item shows the
estimated probability of having each of 15 individual needs and
vulnerabilities as a function of the Total Needs and Vulnerability Index
developed as a sum of these indicators. The analyses shown are a form of
psychometric analysis of the total index. Note that this way of showing
"item response curves" is somewhat more flexible than
traditional scaling models and was used because of the large amounts of
missing data on some of the indicators.
Person of Color:
Estimated Probability as a Function of Total Service Needs and
Vulnerabilities

No High School Completion:
Estimated Probability as a Function of Total Service Needs and
Vulnerabilities

Unemployed or Disabled:
Estimated Probability as a Function of Total Service Needs and
Vulnerabilities

No Private Insurance:
Estimated Probability as a Function of Total Service Needs and
Vulnerabilities

Alcohol Problem:
Estimated Probability as a Function of Total Service Needs and
Vulnerabilities

Heroin Use:
Estimated Probability as a Function of Total Service Needs and
Vulnerabilities

Crack Use:
Estimated Probability as a Function of Total Service Needs and
Vulnerabilities

Other Illicit Drug Use:
Estimated Probability as a Function of Total Service Needs and
Vulnerabilities

Criminal Justice
System Involvement:
Estimated Probability as a Function of Total Service Needs and
Vulnerabilities

Sex Work:
Estimated Probability as a Function of Total Service Needs and
Vulnerabilities

Sex with
Injection Drug User:
Estimated Probability as a Function of Total Service Needs and
Vulnerabilities

Unstable Housing:
Estimated Probability as a Function of Total Service Needs and
Vulnerabilities

All Needs Codes:
Estimated Probability as a Function of Total Service Needs and
Vulnerabilities as Estimated from a Formal 2-Parameter Item Response
Theory Model on Complete Cases Only
Patients
or Clients?
Knowledge Item Citation: Huba, G. J., Melchior, L. A., Panter, A. T., and the HRSA/HAB SPNS Cooperative Agreement Steering Committee (1998-2001). Knowledge Item: CA-Client-Patient
Characteristics-25 from
HRSA/HAB's SPNS Cooperative Agreements on Innovative Models of Care, The Measurement Group Knowledge Base on HIV/AIDS Care, Online at
www.TheMeasurementGroup.com.
Last Updated:
January 02, 2008; data through June 15, 1999; analyses conducted
April - June 2000.



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