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parametrics
Parametrics are the standardized rating scales used to measure disease severity. If you volunteer for a clinical research protocol, you will be examined closely throughout the study. In addition to physical and neurological examinations, the investigator (i.e., the doctor) will spend time with you, making simple but precise measurements and recording the information on special forms. Usually the information will be collected through a series of carefully designed questions, observations, or by the performance of simple motor or cognitive tasks. For example, one of the items on the Unified Parkinson’s Disease Rating Scale asks the research subject to open and close the hands as quickly as possible. In order to collect meaningful data, it is necessary for the investigator to have skill and expertise in evaluating even the simplest of tasks.

We are experts in the administration of the following standardized rating scales (partial listing):

  • Abnormal Involuntary Movements
  • (AIMs)
  • Adverse Event Profile (for Epilepsy)
  • (AEP)
  • Alzheimer’s Disease Assessment Scale (cognitive subscale)
  • (ADAS-cog)
  • Alzheimer’s Disease Cooperative Study, Activities of Daily Living
  • (ADCS-ADL)
  • Beck Depression Inventory
  • (BDI)
  • Brief Pain Index
  • (BPI)
  • Brief Psychiatric Rating Scale
  • (BPRS)
  • Clinical Global Impression
  • (CGI)
  • Clinician Interview Based Impression of Change with Caregiver Input
  • (CIBIC-plus)
  • Dementia Rating Scale
  • (DRS)
  • Epworth Daytime Sleepiness Scale
  • (ESS)
  • Goetz Dyskinesia Scale
  • (GDS)
  • Hamilton Depression Scale
  • (HAM-D)
  • Hoehn and Yahr
  • (H&Y)
  • McGill Pain Questionnaire
  • (SF-MPQ)
  • Mini-Mental Status Examination (Folstein)
  • (MMSE)
  • Neuropsychiatric Inventory
  • (NPI)
  • Pain Visual analog scale
  • (VAS)
  • Parkinson’s Disease Questionnaire
  • (PDQ-39)
  • Peabody Picture Vocabulary Test
  • (PPVT)
  • Profile of Mood States
  • (POMS)
  • Quality of Life in Epilepsy Inventory
  • (QOLIE-31)
  • Restless Legs Syndrome Rating Scale
  • (RLSRS)
  • Schwab and England Activities of Daily Living
  • (S&E ADL)
  • Short-Form 36
  • (SF-36)
  • State-Trait Anger Expression Inventory
  • (STAXI)
  • Toronto Western Spasmodic Torticollis Rating Scale
  • (TWSTRS)
  • Tremor Rating Scale
  • (TRS)
  • Unified Huntington’s Rating Scale
  • (UHRS)
  • Unified Dystonia Rating Scale
  • (UDRS)
  • Unified Parkinson’s Disease Rating Scale
  • (UPDRS)

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