Internet Gaming Disorder as a formative construct: Implications for conceptualization and measurement.

Area of Science:

• Psychiatry
• Psychometrics
• Behavioral Science

Background:

• Internet Gaming Disorder (IGD) is proposed in the DSM-5 for further study.
• Current research validates IGD criteria using various scales.
• Existing approaches may misinterpret the nature of IGD measurement.

Purpose of the Study:

• To propose reinterpreting Internet Gaming Disorder (IGD) as a formative construct.
• To highlight issues in current scale development and validation for IGD.
• To offer implications for future research and data reanalysis.

Main Methods:

• Structured analysis of IGD conceptualization.
• Examination of measurement issues in current validation efforts.
• Illustrative examples of scale development problems.

Main Results:

• IGD is better conceptualized as a formative, rather than reflective, construct.
• Current methods (e.g., Cronbach's α, item-to-total correlations) are inappropriate for formative constructs.
• Misconceptualization leads to flawed scale development and biased statistical results.

Conclusions:

• Reinterpreting IGD as formative necessitates revised validation strategies.
• Future research should define and utilize composite latent constructs.
• Item selection should not rely on item-to-total correlations; IGD definitions need enrichment.