Introduction: The main objective was to study the linguistic equivalence,
validity and reliability of the transliterated Turkish version of Mind
Excessively Wandering Scale (MEWS) developed by Prof. Philip Asherson
in England (2016). Mind excessively wandering defines uncontrolled
mental phenomena, which is proposed as the psychological counterpart
of Default Mode Network in literature.
Method: Mind Excessively Wandering Scale, Adult Attention Deficit
Hyperactivity Disorder Self-Report Scale, Barratt Impulsiveness Scale,
Difficulties in Emotion Regulation Scale have been used. The sample
group consists of 64 patients previously diagnosed as adult Attention
Deficit Hyperactivity Disorder for validity, 60 students for transliteral
equivalence, and 80 healthy controls for test re-test reliability.
Results: Transliteral equivalence study demonstrates that Turkish version
of MEWS is highly correlated with the English version and is statistically
significant. The sixth item in the scale was removed in order to ensure the
consistency model established by LISREL in the validity study according
to the confirmatory factor analysis. When the sixth item was excluded,
it was concluded that the structure of the scale was compatible. In the
reliability study of the MEWS, the Cronbach’s alpha value (α) of the
scale was found to be 0.826. It is seen that the item with the highest
distinctiveness feature is Item-10 (0.618) and the item with the lowest
distinctiveness feature is Item-5 (0.318). In the linguistic equivalence
study, no statistical difference was found between the English and the
Turkish versions of the scale.
Conclusion: As a result of the practical and statistical evaluations, our
study demonstrated that the Turkish version of the MEWS is a valid and
reliable measurement tool.
Keywords: Adult Attention Deficit Hyperactivity Disorder, mind
excessively wandering, reliability, validity