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Development and validation of a questionnaire assessing control over perceptual experiences

Development and validation of the Japanese version of the Control Over Perceptual Experiences (COPE) scale - The Japanese version of the Control Over Perceptual Experiences Scale

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
JPRN
Registry ID
JPRN-UMIN000060991
Enrollment
180
Registered
2026-03-19
Start date
2026-03-19
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Mental disorders including conditions with auditory hallucinations

Interventions

None listed

Sponsors

The University of Tokyo
Lead Sponsor
Health Sciences University of Hokkaido, Bethel House, Sapporo Nakama no Mori Clinic
Collaborator

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: -Individuals aged 18 to 64 who have been diagnosed with a mental disorder, or those who have not received a formal diagnosis but experience mental symptoms such as auditory hallucinations, and who have experienced such hallucinations at least once a month within the past six months -The anticipated diagnosis includes illnesses such as schizophrenia that may cause hallucinations or auditory hallucinations. The severity of the condition must be such that the individual is capable of responding to the survey -Individuals who have consented to participate in the survey

Exclusion criteria

Exclusion criteria: -Individuals with paroxysmal disorders, cognitive impairment, or neurological disorders -Individuals who regularly consume alcohol or non-prescription medications during the study period

Design outcomes

Primary

MeasureTime frame
Reliability (internal consistency and test-retest reliability) and validity (construct validity) of the Japanese version of the COPE scale

Secondary

MeasureTime frame
Associations with other psychological measures and differences by participant characteristics

Countries

Japan

Contacts

Public ContactNoriko Katsuya

The University of Tokyo Research Center for Advanced Science and Technology

katsuya@bfp.rcast.u-tokyo.ac.jp03-5452-5063

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026