The Difficult Question of Measurement.week2

The Difficult Question of Measurement.week2 - The Difficult...

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The Difficult Question of Measurement How can we accurately identify and count the exact number of perpetrators, victims, and acts of violence in family and family- like relationships, that is, intimate violence?
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Prevalence of Violence Prevalence is the percentage of a population involved in one or more acts of some form of intimate violence in a specified time period.
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Incidence of Violence Incidence is the frequency with which acts of some form of intimate violence occur in a specified time period.
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Involvement  can be as a perpetrator or as a  victim of such acts; so estimates can be of the  prevalence or incidence of perpetration (did  you do it?) or victimization (was it done to  you?). 
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Forms of intimate violence include physical or sexual assaults of partners, children, parents/guardians/ caregivers, or elders.
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Specified time period usually includes annual (in the past 12 months) or bi-annual (in the past 6 months), as well as lifetime estimates (has this ever occurred and how often?)
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We’ve Have a Problem: The Question is Unanswerable! We can never know the exact number of perpetrators, victims, and acts of intimate violence. That number is unknown and unknowable.
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The best we can do is to estimate that number, using methods having acceptable standards of reliability and validity.
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Reliability Reliable methods are those that consistently produce similar estimates of the prevalence and incidence of intimate violence in the population under study.
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Validity Valid methods are those that produce the estimates that reflect the “real” prevalence or incidence of intimate violence in the population under study.
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Two Standard Methods: Official methods or sources of information are the procedures used for recording identified cases reported to agencies having the responsibility of responding to and/or collecting information on intimate violence.
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Illustrations of official sources include: The FBI’s Uniform Crime Reporting Program
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National Clearinghouse on Child Abuse and Neglect Information (National Child Abuse and Neglect Data System, NCANDS; Reports from State Child Protective Services Agencies)
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Hospital and emergency room records, and National Center for Health Statistics; National Vital Statistics System Mortality data.
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Population or clinical samples of persons who are interviewed or fill out a questionnaire about their involvement (or
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The Difficult Question of Measurement.week2 - The Difficult...

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