Frequently asked questions

What is the content of the database?

The NeuroPsychNorms database contains normative data from peer-reviewed studies replaced to more the 70 measures. Overall, more than 1000+ studies on the different measures were input.

Currently available measures (70)

  1. [5_Digit_Stroop] Five-Digit Stroop Test
  2. [9HolePeg] Nine-Hole Peg
  3. [ACE_R] Addenbrooke's Cognitive Examination Revised
  4. [ACT] Auditory Consonant Trigrams
  5. [AMT] Australia Motor Test
  6. [AQT] Alzheimer's Quick Test
  7. [BDAE_CIM] BDAE Complex Ideational Material
  8. [BDI_PC] Beck Depression Inventory (Primary Care)
  9. [BNE] Batería Neuropsicológica en Español
  10. [BNT] Boston Naming Test
  11. [BNT15] Boston Naming Test-15 item
  12. [BVMT_R] Brief Visuospatial Memory Test Revised
  13. [BVRT] Benton Visual Retention Test
  14. [CAN] Cancellation Tests
  15. [CCPT_II] Conners Continuous Performance Test-II
  16. [CCT] Children's Category Test
  17. [CLOX] CLOX
  18. [CPT3] Conners CPT3
  19. [CT] Category Test
  20. [CTT] Color Trails Test
  21. [DFT] Design Fluency Test
  22. [DigitSpan] Digit Span
  23. [DigSym] Coding (Digit Symbol)
  24. [DYNA] Grip Strength Test
  25. [EIWA] Escala de Inteligencia Wechsler para Adultos
  26. [FAB] Frontal Assessment Battery
  27. [FOME] Fuld Object-Memory Evaluation
  28. [FT] Finger Tapping Test
  29. [GPT] Grooved Pegboard Test
  30. [HDS] HIV Dementia Scale
  31. [HVLT] Hopkins Verbal Learning Test
  32. [HVOT] Hooper Visual Organization Test
  33. [IGT] Iowa Gambling Task
  34. [JLO] Judgement of Line Orientation
  35. [MDRS] Mattis Dementia Rating Scale
  36. [MMSE] Mini-Mental Status Exam
  37. [MoCA] Montreal Cognitive Assessment
  38. [NCSE] Cognistat
  39. [NeSBHIS] Neuropsychological Screening Battery for Hispanics
  40. [NEUROPSI1] Evaluación Neuropsicológica Breve en Español
  42. [NIHToolboxCog] NIH Toolbox Cognition Battery
  43. [OTT] Orals Trails Test
  44. [PASAT] Paced Auditory Serial Addition Test
  45. [PerriAVLT] Perri Auditory Verbal Learning Test
  46. [RavensPMT] Raven's Progressive Matrices Test
  47. [RBANS] Repeatable Battery for the Assessment of Neuropsychological Status
  48. [R_OCF] Rey-Osterrieth Complex Figure
  49. [SDMT] Symbol Digit Modality Test
  50. [SemiCF] Semicomplex Figure
  51. [SPM] Raven's Standard Progressive Matrices
  52. [SPNP11LA] Spanish-Language NP Tests in Eleven Latin American Countries
  53. [SPNP9LA_Peds] Spanish-Language NP Test in 9 Latin American Countries-Peds
  54. [Stroop_C] Comalli Stroop
  55. [Stroop_G] Golden Stroop
  56. [Stroop_H] Hammes Stroop
  57. [Stroop_K] Kaplan Stroop
  58. [Stroop_V] Stroop Victoria
  59. [TexMexAANS] TexMexAANS
  60. [TMT] Trailmaking Test
  61. [TPT] Tactual Performance Test
  62. [VF] Verbal Fluency Test
  63. [VFDT] Visual Form Discrimination Test
  64. [VSVT] VSVT
  65. [WAIS_IV_Mexico_] WAIS-IV (Mexico)
  66. [WCST_128] Wisconsin Card Sorting Test-128
  67. [WCST_64] Wisconsin Card Sorting Test-64 Card
  68. [WCST_M] Wisconsin Card Sorting Test-Modified Version
  70. [WRMT_Words] Warrington Recognition Memory Test–Words
    More measures coming soon

In addition to normative data added by the NeuroPsychNorms team to the database, you are more than welcome to suggest studies containing new uncollected data or even measures for which we do not have any data at all.

While our literature tended to focus on normative data and/or control subjects on an experimental trial, the database also includes abnormal data (e.g., TBI, dementia, stroke) and unique data (e.g., re-test data and under other unique conditions). Again, feel free to suggest new studies with abnorms and unique conditions to an existing measure.

The database is configured so you can sort the data easily by the N-size, Demographics or Year. Number of Demographic Stratifications is determined by the number of Stratification types that the study separates their data based on demographic information. For example, if the data of a study is separated by Age, Education, and Gender Identity, this will be at a higher rank than a 2-tier stratification (Age and Education).

What is the methodology used?

  1. Which measures?

    After comprehensively searching the neuropsychological literature, we determined which measures we deemed important to include normative data for the database. We sought out the most commonly neuropsychological measures currently used in both clinical and research settings. We made an effort to focus on cross-cultural neuropsychological measures utilized in the neuropsychological literature, due to the scarcity of these neuropsychological studies.
    Normative data provided by NeuroPsychNorms are collected from peer-reviewed studies.

  2. Which variables?

    After comprehensively looking at each measure we selected, we determined which raw data is commonly scored throughout the literature. For example, the Trail Making Test commonly utilizes scores for Trial A and B while some studies provide B-A, or B+A, B-A/B and errors. We did not include those specific measures in the database.

  3. Means and standard deviations?

    In order for the scoring program to function, the studies must provide means and standard deviations of the measure's variables. As a consequence, we excluded from our database studies which do not include both a Mean and Standard Deviation of a variable.

  4. Stratification of Data?

    If the normative data was not stratified (based on demographics, such as age, education, and gender identity), which is common for control studies comparing an experimental group, an age range was at minimum required to be included in the database. While age was required, we find that education to be important but not required. We included those studies even if they did not report any information on education. Some studies gave also information such as a ratio of males to females but did not actually separate their data based on this gender identity demographic. Stratified data includes gender identity stratification only if the study actually provided separate scores based on gender.

    Number of Demographic Stratifications is determined by the number of Stratification types that the study separates their data based on demographic information. The most common types are age, gender identity, and education. For example, if the data of a study is separated by these three demographic information, the study will have a higher rank than a 2-tier stratification. The program has the capacity to rank based on the number of stratifications by selecting the Demographics button next to the Enter button.

  5. Presentation of scored data?

    Scored data are presented by providing a z-score and precentiles only, at this time.

  6. NPNorms Apps

    We have an app available in the app store for iOS. This app allows for scoring and searching on a mobile device running on iOS. The app is secured so you must have a key to get in to use it. You can get a key by signing up for our 2 Month Free Trial.

    Coming soon: an app only account which provides the key to access the app AND provides basic searching and scoring in the website. This access is only $5.99/month (paid in annual installments).

    Start a Free Trial

    Also coming soon is an Android app that will be available in the google play store.

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