ABSTRACT
W e have already given in C hapter I I I a b rief account of general and special abilities, as discovered by means of tests. W e saw there th a t there is good evidence for the existence of a large elem ent in general ability which is innate and is not increased by exercise. This general ability is especially revealed in tests which involve the apprehension of relations and tha t has been further discussed in the chapter on ‘Thinking and the T rain ing of Reasoning’. Intelligence and other tests, however, are so im portan t, and have contributed so m uch to the developm ent of m odern psychology, th a t we m ust devote a special chapter to them .
