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Self-Report Tests of Personality

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Self-report inventories are objective personality assessments that use multiple-choice items or numbered scales, typically ranging from 1 (strongly disagree) to 5 (strongly agree). They are often called Likert scales after Rensis Likert. These inventories are widely used due to their ease of administration and cost-effectiveness. One of the most prominent examples is the Minnesota Multiphasic Personality Inventory (MMPI), initially developed in the 1940s to assess abnormal personality traits.

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Development and Validation of a Short-Form Internet Overuse Screening Questionnaire for Adults.

Soowon Park¹, Seungchan Lee², Boungho Choi³

¹Department of Education, Sejong University, Seoul, Republic of Korea.

European Addiction Research

|March 16, 2020

Summary

A new short-form of the Internet Overuse Screening Questionnaire (IOS-Qs) was developed and validated. This brief tool effectively identifies individuals at risk for problematic internet use, showing significant associations with mental health disorders.

Keywords:

Comorbidity Internet overuse screening questionnaire Rasch model Validation

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Area of Science:

Psychiatry
Psychology
Public Health

Background:

Internet overuse is a growing concern with potential links to mental health issues.
Existing screening tools may be lengthy, limiting their use in large-scale assessments.

Purpose of the Study:

To develop and validate a concise short-form of the Internet Overuse Screening Questionnaire (IOS-Qs).
To assess the prevalence of problematic internet use and its association with mental disorders.

Main Methods:

A representative sample of 571 adults was used for development (188) and validation (383) of the IOS-Qs.
Item selection involved expert ratings and Rasch model analysis.
Latent-class analysis and receiver operating characteristic (ROC) curves were employed for validation.

Main Results:

An 8-item IOS-Qs was selected, identifying a problematic internet use prevalence of 8.6%.
Problematic internet use was significantly associated with higher rates of any mental disorder (OR 3.08), mood disorder (OR 7.11), and depressive disorder (OR 5.22).
The optimal cutoff score of 9.5 demonstrated 94% sensitivity and 94% specificity.

Conclusions:

The short-form IOS-Qs is a valid and brief instrument for identifying at-risk internet users.
Items related to social isolation are key indicators of problematic internet use.
The questionnaire's brevity makes it suitable for large-scale surveys and public health screening.