The Kallikak family : a study in the heredity of feeble-mindedness / by Henry Herbert Goddard.

  • Goddard, Henry Herbert, 1866-1957.
Date:
1912
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Licence: In copyright

Credit: The Kallikak family : a study in the heredity of feeble-mindedness / by Henry Herbert Goddard. Source: Wellcome Collection.

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    duced the results which we have reached. Oftentimes a second, a third, a fifth, or a sixth visit has been neces- sary in order to develop an acquaintance and relation- ship with these families which induced them gradually to relate things which they otherwise had not recalled or did not care to tell. Many an important item has been gathered after several visits to these homes. Chap- ter IV will throw still more light on the method used. If the reader is inclined to the view that we must have called a great many people feeble-minded who were not so, let him be assured that this is not the case. On the contrary, we have preferred to err on the other side, and we have not marked people feeble-minded unless the case was such that we could substantiate it beyond a reasonable doubt. If there was good reason to call them normal, we have so marked them. If not, and we are unable to decide in our own minds, we have generally left them unmarked. In a few cases, we have marked them normal or feeble-minded, with a question mark. By this is meant that we have studied the case and after deliberation are still in doubt, but the prob- abilities are “ N ” or “ F ” as indicated. The mere fact of the doubt shows, however, that they are at least border-line cases. To the scientific reader we would say that the data