Downloadable SPSS Code

Preparing Data for Analysis
Reading a Multilevel Data File Into SPSS
Creating An Incident-Level Aggregated Flat File In SPSS
Prepare Individual File Segments for Detailed Analysis


Tips and Shortcuts for Working with NIBRS Data
Converting alphanumeric age codes to numeric values
Converting alphanumeric offense codes to numeric values
Creating offense groupings for person, property, and society offenses
Creating age groups from ages of victims, offenders, and arrestees
Converting offense times into quarter hour groupings


Data Quality
Ensure that required fields contain data
Ensure that the required homicide (09A, 09B, 09C) offense segment data fields are complete
Ensure that the required homicide (09A, 09B, 09C) victim segment data fields are complete
Ensure that offenses coded as occurring at midnight are correct
Ensure that victim variables are reported where required and are correct when reported but not required Check that assaults are properly coded
Check that negligent homicides do not include motor vehicles
Check that stepparent is coded correctly
Check that incest involves only family members
Check that relationship codes made sense based on reported ages
Check that Offender Suspected of Using is completed, when required
Check that Type of Criminal Activity is recorded correctly
Check that Drug Type is included in the property description
Check that Drug Type is recorded when required
Check that reported drugs are measured correctly
Check that property loss types make sense
Check that property descriptions make sense
Check property values


Standardizing the Display of IBR Data: An Examination of NIBRS Elements
Percent of Incidents, by Time of Day
Time of Juvenile Firearm Violence
Time of Day of Personal Robberies by Type of Location
Incidents on School Property by Hour
Temporal Distribution of Sexual Assault Within Victim Age Categories
Location: Percent Distribution of Offense, by Type of Crime
Location of Juvenile and Adult Property Crime Victimizations
Robberies by Location
Location of Rape
Frequency Distribution for Victim-Offender Relationship by Offender and Older Age Groups and Location
Number of Offenses Known by Weapon
Comparison of Personal Weapons vs. Firearms for Selected Offenses
Type of weapon/force used to commit rapes reported in 3 NIBRS states, by relationship of offender to victim
Weapon Use Among Juvenile and Young Adult Arrestees
Violent crimes by the type of weapon used
Weapons Associated With Reported Injuries
Incidents Involving Juvenile Offenders by Number of Victims Injured
Domestic Violence Victim Injuries
Frequency Distribution for Victim Injury by the Three Traditional Age Groups for Elders
School Violence Victims by Injury
Percent Distribution of Victims by Age and Relationship to Offender
Relationship of Victim to Offender in Simple Assaults
School Violence Victims by Victim/Offender Relationship
Forcible Rape: Victim to Offender Relationship
Relationship of offender to victim in personal robberies reported in 3 NIBRS states, by age of victim and race of offender and victim
Number of Incidents, Offenses, Persons Victimized, and Known Offenders
User- and Dealer-Related Drug Activity
Drug Offenses Occurring in Conjunction with Other Offenses
Demographics of Offenders in Drug Offenses
Location of Drug Offenses
Value of Property Loss Due to Criminal Action, Property Type
Value of Property Recovered/Seized by Law Enforcement Agencies, Property Type
Larceny, Value of Stolen Property
Types of Property Stolen from Juvenile and Adult Victims


Analysis Examples
Are juveniles aged 10 - 17 more likely than adults to be involved in multiple offender incidents?
What types of offenses are reported in both juvenile and adult multiple offender incidents?
At what time of day are most juvenile multiple offender property offenses committed?
What offenses are reported in juvenile multiple offender incidents in which the most serious offense is a Part I Index property crime?
For which violent crimes perpetrated in residential settings are adults aged 65 or older more likely than people aged 64 or younger to be victimized?
For violent person crimes, when is the victimization of a person aged 65 or older in a residential setting most likely to occur?
Does the offender age differ by victim-offender relationship for older adult and younger victims of robbery?
Is there a difference between gender and age groups in the types of injuries sustained by victims in violent intimate partner incidents?
What violent offenses did intimate partners commit and where were the offenses committed?
Is there a difference in weapon use against female vs. male victims of intimate partner violence?
FBI's Analysis of Robbery
FBI's Analysis of Motor Vehicle Theft Using Survival Model
FBI's Drug Offense Analysis


IBR Resource Center Reports Using State Data
Exploring the Dynamics of Race and Crime Using Vermont NIBRS Data
Linking Incident-Based Crime Data and Court Records: A Pilot Study of Domestic Relationship and Driving Under the Influence Incidents
Crime in WV Cities: A Comparative Analysis of Selected Population Groups and Victim-Offender Relationships