Exploratory Factor Analysis and Convergent Validity of the Adult Executive Function Inventory (ADEXI)

Area of Science:

• Psychology
• Neuroscience
• Occupational Therapy

Background:

• Executive functions (EFs) are crucial cognitive processes.
• The Adult Executive Functioning Inventory (ADEXI) is a practical self-report tool for assessing EFs.
• Assessing EFs in diverse populations requires validated instruments.

Purpose of the Study:

• To examine the construct validity of the Hebrew version of the ADEXI.
• To assess the convergent validity of the ADEXI by correlating it with the Dysexecutive Questionnaire (DEX).

Main Methods:

• A cross-sectional study utilizing anonymous online surveys.
• A sample of 239 nonclinical adults (74.1% women, ages 18-80).
• The Hebrew ADEXI, demographic questionnaire, and DEX were administered.

Main Results:

• The Hebrew ADEXI showed good internal consistency (Cronbach's α = .86).
• Exploratory factor analysis revealed three factors: inhibition, working memory, and cognitive flexibility.
• Significant correlations between ADEXI and DEX scores supported convergent validity.

Conclusions:

• The Hebrew ADEXI is a psychometrically sound tool for assessing executive functions in Hebrew-speaking adults.
• Findings support the use of the ADEXI by occupational therapy practitioners.
• The ADEXI provides a validated measure of inhibition, working memory, and flexibility.