Introduction:

Aggression in the child-juvenile stage is a problem that has a significant impact on most countries. It is frequent in school children, so it is necessary to have valid and reliable instruments that allow its evaluation.

Objective:

To apply Little's Aggression Scale in Cuban schoolchildren from the municipality of Santa Clara, Villa Clara, Cuba.

Method:

Was assumed a quantitative paradigm with a non-experimental design, and an instrumental study type. A stratified probabilistic sampling was used by means of a random selection. The sample was made up of 266 schoolchildren from the Santa Clara municipality, out of a population of 21,106 schoolchildren. Descriptive data analysis techniques were essentially used, in particular frequencies, as well as classical descriptive statistics and inferential techniques (Cronbach's alpha, Pearson correlation coefficient, exploratory and confirmatory factor analysis).

Results:

The sample of Cuban children did not support the factorial structure of the instrument. Nor did it correspond to the proposal of the authors of the original version, since the goodness-of-fit indices were not favorable.

Conclusions:

The reliability and validity of Little's Aggression Scale is corroborated, as well as the feasibility of its application to evaluate the construct in Cuban school children.

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