NINDS CDE Notice of Copyright
Longitudinal Interval Follow-Up Evaluation DSM-IV VERSION (LIFE DSM-IV)
Please email the author for information about obtaining the instrument:
Supplemental for Epilepsy
Short Description of Instrument
Purpose: The Longitudinal Interval Follow-up Evaluation (LIFE) is an integrated system for assessing the longitudinal course of psychiatric disorders.
Description: The LIFE consists of a semistructured interview, an Instruction booklet, a coding sheet, and a set of training materials. An interviewer uses the LIFE to collect detailed psychosocial, psychopathologic, and treatment information for a six-month follow-up interval. The weekly psychopathology measures ("psychiatric status ratings") are ordinal symptom-based scales with categories defined to match the levels of symptoms used in the Research Diagnostic Criteria. The ratings provide a separate, concurrent record of the course of each disorder initially diagnosed in patients or developing during the follow-up. Any DSM-III or Research Diagnostic Criteria disorder can be rated with the LIFE, and any length or number of follow-up intervals can be accommodated. The psychosocial and treatment information is recorded so that these data can be linked temporally to the psychiatric status ratings.
Comment: The LIFE should be administered by trained raters with experience in structured clinical interviews and criterion-based diagnostic systems.
Primary Dependent Measures: 3 or 6 point scale for criteria
Time Estimates: 45 minutes to 4 hours
Vendor: permission from Brown University
Keller MB, Lavori PW, Friedman B, Nielsen E, Endicott J, McDonald- Scott P, Andreason NC. The Longitudinal Interval Follow-up Evaluation: A comprehensive method for assessing outcome in prospective longitudinal studies. Arch Gen Psychiatry. 1987; 44: 540-548.
Warshaw MG, Dyck I, Allsworth J, Stout RL, Keller MB. Maintaining reliability in a long-term psychiatric study: an ongoing inter-rater reliability monitoring program using the longitudinal interval follow-up evaluation. J Psychiatr Res. 2001; 35(5): 297-305.
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