Validity, Reliability and Factor Structure of The Life Attitude Profile-Revised (LAP-R)

Introduction: Considering the importance of meaning of life and its role in mental health, the purpose of the current study is to examine the psychometric properties of LAP-R, an instrument that measures the meaning of life on the extensive components. Method: 500 students from different levels of education of Shahed University of Tehran were selected by proportional sampling method and after translating and retranslating of LAP-R, responded to LAP-R with the Spirituality Assessment Inventory (SAI), the Self-Esteem Rating Scale- Short Form (SERS-SF) and the Positive Affect and Negative Affect Scale (PANAS). After performing the questionnaires, the results of validity and reliability of LAP-R were analyzed by statistical analysis. Result: As the results of current study showed, there was a high correlation between many subscales of LAP-R with SAI, SERF-SF and PANAS. Also, the Cronbach s alpha coefficient and the correlation between the test-retest of LAP-R was appropriate (P 0.01). The correlation of the test-retest of this scale ranged from 0.61 to 0.81(P 0.01). Also, Cronbach’s alpha coefficients of the subscales and the overall score of this scale ranged from 0.65 to 0.86. Conclusion: Considering the appropriate correlation of LAP-R with other scales as well as the results of test-retest correlation and Cronbach`s alpha, it can be said that this questionnaire has appropriate validity and reliability.