operational thinking develops, point of view can be taken into account and the seven types of conservation are developed (mass, number, length, liquid, mass, weight, area and volume). During the formal operational stage (age 11-adulthood), abstract concepts are developed and a concern is placed on the hypothetical, the future, and ideological problems (Duveen, Perret-Clemont, Psaltis, 2009, p. 292). The way these cognitive effects relate to advertising is based on the level of attention…
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