%0 Journal Article %T Efficacy of the Educational Leadership in the Spanish Context: The Perspective of Its Agents %A Antonio Bol¨ªvar %A Carmen L¨®pez %A Purificaci¨®n P¨¦rez-Garc¨ªa %J NASSP Bulletin %@ 1930-1405 %D 2018 %R 10.1177/0192636518774134 %X Our study aims to discover the degree of efficacy of the principal¡¯s performance in relation to the learning objectives, curriculum, and results, and explore the relationship among the perceptions of the inspectors, teachers, and management teams about the principal¡¯s efficacy in promoting students¡¯ learning. The Vanderbilt Assessment of Leadership in Education (VAL-ED) questionnaire was applied. Contingency analyses were calculated. We concluded that the three sectors considered the principal¡¯s work to be effective in actions related to the learning objectives, curriculum planning, and responsibility for the outcomes %K efficacy %K educational leadership %K principal %K inspector %K teacher %U https://journals.sagepub.com/doi/full/10.1177/0192636518774134