Assessment of academic stress: measurement invariance by sex

<jats:p>&lt;p&gt;&lt;strong&gt;Context and relevance.&lt;/strong&gt; In recent years, academic stress among high school students has been regarded as a significant risk factor for their well-being and academic achievement, while in the Russian context there is a noted shortage of modern, psychometrically validated methods for its assessment. &lt;strong&gt;Objective.&lt;/strong&gt; The aim of this study is to validate the Russian version of the LASRS-2 for students in grade 11, including confirmation of its factor structure, assessment of reliability, and evaluation of convergent validity. &lt;strong&gt;Hypothesis.&lt;/strong&gt; The Russian version of the LASRS-2 demonstrates validity, reliability, and measurement invariance by gender for students in grade 11. &lt;strong&gt;Methods and materials.&lt;/strong&gt; The data from 976 eleventh graders were used, aged 16 to 18 years (M = 17, SD = 0,35), 75,7% females. For convergent validity testing, E. Diener's Life Satisfaction Scale and Physical Wellbeing Index were employed. Analysis was conducted using R (version 4.5.1) with the lavaan package. &lt;strong&gt;Results.&lt;/strong&gt; Evidence of validity for the Russian version of the LASRS-2 was obtained, along with strict invariance, allowing comparison between male and female students. &lt;strong&gt;Conclusion.&lt;/strong&gt; The Russian version of the LASRS-2 is a valid tool for measuring affective, cognitive, behavioral, and physiological academic stress among students in grade 11. The instrument can be utilized for research and monitoring purposes.&lt;/p&gt;</jats:p>