Validation of the Russian version of the Continuous Performance Test—Identical Pairs tool Implemented on the Inquisit software platform
- Authors: Fedotov I.A.1, Shustov D.I.1, Faustova A.G.1, Ershova V.A.1, Lapatina A.S.1
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Affiliations:
- Ryazan State Medical University
- Issue: Vol LVII, No 3 (2025)
- Pages: 274-283
- Section: Original study arcticles
- URL: https://journals.rcsi.science/1027-4898/article/view/349013
- DOI: https://doi.org/10.17816/nb679860
- EDN: https://elibrary.ru/FGANHX
- ID: 349013
Cite item
Abstract
BACKGROUND: Impairments in selective attention are a major indicator of cognitive deficit in schizophrenia. However, there is a lack of psychodiagnostic tools adapted into Russian for the objective and accurate evaluation of such impairments.
AIM: To translate into Russian, adapt, and validate the Continuous Performance Test—Identical Pairs (CPT-IP) tool implemented on the Inquisit software platform.
METHODS: In total, 67 individuals were examined: 34 presumed mentally healthy individuals (15 men, 19 women, average age 22.5 [20.0; 43.3] years); 33 patients with schizophrenia (13 men, 20 women, average age 37.2 [25.2; 48.5] years). A translation of the original English-language CPT–IP script was performed and validated by the authors of the tool. The Russian version was made available in the Inquisit library. For each participant, a study was conducted using the Russian-language CPT–IP script, the cancellation test, the number search test and the ten-word recall test, as well as a retest using CPT–IP.
RESULTS: The Cronbach’s alpha coefficient was 0.73 for both samples, reflecting a sufficient internal consistency of the method. A statistically significant negative correlation was found between the DPrime indicators in CPT–IP and the number of errors in the cancellation test, which confirms the convergent validity of CPT–IP for assessing selective attention. Discriminant validity was demonstrated by the absence of significant correlations between the CPT–IP indicators and the results of the ten-word recall test in both samples. The test-retest reliability reached a significantly high level according to the Chaddock scale.
CONCLUSION: The translated into Russian and adapted CPT–IP tool has a sufficient internal consistency, convergent and discriminant validity, as well as a sufficient test-retest reliability, which allows recommending it for use in research on cognitive impairments in patients with schizophrenia.
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##article.viewOnOriginalSite##About the authors
Ilya A. Fedotov
Ryazan State Medical University
Author for correspondence.
Email: ilyafdtv@yandex.ru
ORCID iD: 0000-0002-2791-7180
SPIN-code: 4004-4132
MD, Cand. Sci. (Medicine), Assistant Professor
Russian Federation, RyazanDmitri I. Shustov
Ryazan State Medical University
Email: dmitri_shustov@mail.ru
ORCID iD: 0000-0001-7803-3388
SPIN-code: 3887-5475
MD, Dr. Sci. (Medicine), Professor
Russian Federation, RyazanAnna G. Faustova
Ryazan State Medical University
Email: a.faustova@rzgmu.ru
ORCID iD: 0000-0001-8264-3592
SPIN-code: 5869-7409
Cand. Sci. (Psychology), Assistant Professor
Russian Federation, RyazanVictoria A. Ershova
Ryazan State Medical University
Email: viktoriyershova420@gmail.com
ORCID iD: 0009-0003-9481-7643
Russian Federation, Ryazan
Anastasia S. Lapatina
Ryazan State Medical University
Email: lapatinanass@icloud.com
ORCID iD: 0009-0009-0059-7568
Russian Federation, Ryazan
References
- Bismark AW, Thomas ML, Tarasenko M, et al. Reverse translated and gold standard continuous performance tests predict global cognitive performance in schizophrenia. Transl Psychiatry. 2018;8(1):80. doi: 10.1038/s41398-018-0127-5
- Lepilkina TA, Rupchev GE, Morozova MA, Enikolopov SN. Complexes of psychometric techniques for assessing cognitive functions in schizophrenia. Moscow; 2016. 24 p. (In Russ.) EDN: XRSMTF
- Ransing R, Sakekar GS, Grigo O, Khairkar P. Bedside assessment of cognitive heterogenety with clock drawing performance among clinical subtypes of schizophrenia — preliminary study. I.P. Pavlov Russian Medical Biological Herald. 2025;33(1):37–48. doi: 10.17816/PAVLOVJ501723
- Zorin RA, Medvedeva YI, Kurepina IS, et al. Distribution of physiological resources and effectivity of purposeful activity of patients with epilepsy. I.P. Pavlov Russian Medical Biological Herald. 2018;26(3):369–379. doi: 10.23888/PAVLOVJ2018263369-379
- De Clercq A, Crombez G, Buysse A, Roeyers H. A simple and sensitive method to measure timing accuracy. Behav Res Methods Instrum Comput. 2003;35(1):109–115. doi: 10.3758/bf03195502
- Hahn E, Vollath A, Ta TTM, et al. Assessing long-term test-retest reliability of the CPT-IP in schizophrenia. PLoS One. 2014;9(1):e84780. doi: 10.1371/journal.pone.0084780
- Cornblatt BA, Risch NJ, Faris G, et al. The Continuous Performance Test, identical pairs version (CPT-IP): I. New findings about sustained attention in normal families. Psychiatry Res. 1988;26(2):223–238. doi: 10.1016/0165-1781(88)90076-5
- Franke P, Maier W, Hardt J, et al. Attentional abilities and measures of schizotypy: their variation and covariation in schizophrenic patients, their siblings, and normal control subjects. Psychiatry Res. 1994;54(3):259–272. doi: 10.1016/0165-1781(94)90020-5
- Rutschmann J, Cornblatt B, Erlenmeyer-Kimling L. Sustained attention in children at risk for schizophrenia. Report on a continuous performance test. Arch Gen Psychiatry. 1977;34(5):571–575. doi: 10.1001/archpsyc.1977.01770170081007
- Dutterer J, Bansal S, Robinson B, Gold Jm. Sustained attention deficits in schizophrenia: Effect of memory load on the Identical Pairs Continuous Performance Test. Schizophr Res Cogn. 2023;33:100288. doi: 10.1016/j.scog.2023.100288
- Nuechterlein KH, Green MF, Calkins ME, et al. Attention/vigilance in schizophrenia: performance results from a large multi-site study of the Consortium on the Genetics of Schizophrenia (COGS). Schizophr Res. 2015;163(1–3):38–46. doi: 10.1016/j.schres.2015.01.017
- Koide T, Aleksic B, Kikuchi T, et al. Evaluation of factors affecting continuous performance test identical pairs version score of schizophrenic patients in a Japanese clinical sample. Schizophr Res Treatment. 2012;2012:970131. doi: 10.1155/2012/970131
- Koppe F. A comparison of CPT-IP performance in schizophrenia patients, bipolar disorder patients and healthy controls. PhD Thesis; 2020. URL: http://urn.nb.no/URN:NBN:no-85281
- Lei D, Li W, Qin K, et al. Effects of short-term quetiapine and lithium therapy for acute manic or mixed episodes on the limbic system and emotion regulation circuitry in youth with bipolar disorder. Neuropsychopharmacology. 2023;48(4):615–622. doi: 10.1038/s41386-022-01463-6
- Yanovsky TS. Diagnostics of mental patients and internal picture of the disease. Personality in a Changing World: Health, Adaptation, Development. 2017;5(4):569–597. doi: 10.23888/humJ20174569-597 EDN: ZXWXWT
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