*3.1. Description of the Publications.*

Academic performance is a multidisciplinary research field and the areas of education (36%) and psychology (28.24%) (Figure 3) are particularly worth mentioning. Figure 4 shows the 10 journals with the highest number of publications.

**Figure 3.** Percentage of publications by research field.

**Figure 4.** Top ten journals with the most publications.

The countries with the highest number of publications are the United States (39.10%), Spain (8.51%) and England (5.54%) (Figure 5).

**Figure 5.** Number of publications by country.
