Chapter II · (continued 3)

5. The Measurement of Individual Differences

With the growing sense of the importance of individual differences in human nature, attempts at their measurement have been essayed. Tests for physical and mental traits have now reached a stage of accuracy and precision. The study of temperamental and social characteristics is still in the preliminary stage.

The field of the measurement of physical traits is dignified by the name "anthropometry." In the nineteenth century high hopes were widely held of the significance of measurements of the cranium and of physiognomy for an understanding of the mental and moral nature of the person. The lead into phrenology sponsored by Gall and Spurzheim proved to be a blind trail. The so-called "scientific school of criminology" founded by Cesare Lombroso upon the identification of the criminal type by certain abnormalities of physiognomy and physique was undermined by the controlled study made by Charles Goring. At the present time the consensus of expert opinion is that only for a small group may gross abnormalities of physical development be associated with abnormal mental and emotional reactions.

In 1905-11 Binet and Simon devised a series of tests for determining the mental age of French school children. The purpose of the mental measurements was to gauge innate mental capacity. Therefore the tests excluded material which had to do with special social experience. With their introduction into the United States certain revisions and modifications, such as the Goddard Revision, the Terman Revision, the Yerkes-Bridges Point Scale, were made in the interests of standardization. The application of mental measurements to different races and social classes raised the question of the extent to which individual groups varied because of differences in social experience. While it is not possible absolutely to separate original tendencies from their expression in experience, it is practicable to devise tests which will take account of divergent social environments.

The study of volitional traits and of temperament is still in its infancy. Many recent attempts at classification of temperaments rest upon as impressionistic a basis as the popular fourfold division into sanguine, melancholic, choleric, and phlegmatic. Two of the efforts to define temperamental differences rest, however, upon first-hand study of cases. Dr. June E. Downey has devised a series of tests based upon handwriting material for measuring will traits. In her pamphlet The Will Profile she presents an analysis of twelve volitional traits: revision, perseverance, co-ordination of impulses, care for detail, motor inhibition, resistance, assurance, motor impulsion, speed of decision, flexibility, freedom from inertia, and speed of movement. From a study of several hundred cases she defined certain will patterns which apparently characterize types of individuals. In her experience she has found the rating of the subject by the will test to have a distinct value in supplementing the test for mentality.

Kraepelin, on the basis of his examination of abnormal mental states, offers a classification of types of psychopathic personalities. He distinguishes six groups: the excitable, the unstable, the psychopathic trend, the eccentric, the anti-social, and the contentious. In psychoanalysis a simpler twofold division is frequently made between the introverts, or the "introspective" and the extroverts, or the "objective" types of individual.

The study of social types is as yet an unworked field. Literature and life surround us with increasing specializations in personalities, but attempts at classification are still in the impressionistic stage. The division suggested by Thomas into the Philistine, Bohemian, and Creative types, while suggestive, is obviously too simple for an adequate description of the rich and complex variety of personalities.

This survey indicates the present status of attempts to define and measure differences in original and human nature. A knowledge of individual differences is important in every field of social control. It is significant that these tests have been devised to meet problems of policies and of administration in medicine, in industry, in education, and in penal and reformatory institutions. Job analysis, personnel administration, ungraded rooms, classes for exceptional children, vocational guidance, indicate fields made possible by the development of tests for measuring individual differences.

SELECTED BIBLIOGRAPHY

I. ORIGINAL NATURE

A. Racial Inheritance

(1) Thomson, J. Arthur. Heredity. London and New York, 1908.

(2) Washburn, Margaret F. The Animal Mind. New York, 1908.

(3) Morgan, C. Lloyd. Habit and Instinct. London and New York, 1896.

(4) ——. Instinct and Experience. New York, 1912.

(5) Loeb, Jacques. Comparative Physiology of the Brain and Comparative Psychology. New York, 1900.

(6) ——. Forced Movements. Philadelphia and London, 1918.

(7) Jennings, H. S. Behavior of the Lower Organisms. New York, 1906.

(8) Watson, John. Behavior: an Introduction to Comparative Psychology. New York, 1914.

(9) Thorndike, E. L. The Original Nature of Man. Vol. I of "Educational Psychology." New York, 1913.

(10) Paton, Stewart. Human Behavior. In relation to the study of educational, social, and ethical problems. New York, 1921.

(11) Faris, Ellsworth. "Are Instincts Data or Hypotheses?" American Journal of Sociology, XXVII (Sept., 1921.)

B. Heredity and Eugenics

1. Systematic Treatises:

(1) Castle, W. E., Coulter, J. M., Davenport, C. B., East, E. M., and Tower, W. L. Heredity and Eugenics. Chicago, 1912.

(2) Davenport, C. B. Heredity in Relation to Eugenics. New York, 1911.

(3) Goddard, Henry H. Feeble-mindedness. New York, 1914.

2. Inherited Inferiority of Families and Communities:

(1) Dugdale, Richard L. The Jukes. New York, 1877.

(2) M'Culloch, O. C. The Tribe of Ishmael. A study in social degradation. National Conference of Charities and Correction, 1888, 154-59; 1889, 265; 1890, 435-37.

(3) Goddard, Henry H. The Kallikak Family. New York, 1912.

(4) Winship, A. E. Jukes-Edwards. A study in education and heredity. Harrisburg, Pa., 1900.

(5) Estabrook, A. H., and Davenport, C. B. The Nam Family. A study in cacogenics. Cold Spring Harbor, N.Y., 1912.

(6) Danielson, F. H., and Davenport, C. B. The Hill Folk. Report on a rural community of hereditary defectives. Cold Spring Harbor, N.Y., 1912.

(7) Kite, Elizabeth S. "The Pineys," Survey, XXXI (October 4, 1913), 7-13. 38-40.

(8) Gesell, A. L. "The Village of a Thousand Souls," American Magazine, LXXVI (October, 1913), 11-13.

(9) Kostir, Mary S. The Family of Sam Sixty. Columbus, 1916.

(10) Finlayson, Anna W. The Dack Family. A study on hereditary lack of emotional control. Cold Spring Harbor, N. Y., 1916.

II. HUMAN NATURE

A. Human Traits

(1) Cooley, Charles H. Human Nature and the Social Order. New York, 1902.

(2) Shaler, N. S. The Individual. New York, 1900.

(3) Hocking, W. E. Human Nature and Its Remaking. New Haven, 1918.

(4) Edman, Irwin. Human Traits and Their Social Significance. Boston, 1919.

(5) Wallas, Graham. Human Nature in Politics. London, 1908.

(6) Lippmann, Walter. A Preface to Politics. [A criticism of present politics from the point of view of human-nature studies.] New York and London, 1913.

(7) James, William. The Varieties of Religious Experience. A study in human nature. London and New York, 1902.

(8) Ellis, Havelock. Studies in the Psychology of Sex. 6 vols. Philadelphia, 1900-1905.

(9) Thomas, W. I. Source Book for Social Origins. Chicago, 1909. [Contains extensive bibliographies.]

B. The Mores

1. Comparative Studies of Cultural Traits:

(1) Tylor, E. B. Primitive Culture. Researches into the development of mythology, philosophy, religion, language, art, and custom. 4th ed. 2 vols. London, 1903.

(2) Sumner, W. G. Folkways. A study of the sociological importance of usages, manners, customs, mores, and morals. Boston, 1906.

(3) Westermarck, E. A. The Origin and Development of the Moral Ideas. London and New York, 1908.

(4) Ratzel, F. History of Mankind. Translated by A. J. Butler. London and New York, 1898.

(5) Vierkandt, A. Naturvölker und Kulturvölker. Leipzig, 1896.

(6) Lippert, Julius. Kulturgeschichte der Menschheit in ihrem organischem Aufbau. Stuttgart, 1886-87.

(7) Frazer, J. G. The Golden Bough. A study in magic and religion. 3d ed., 12 vols. (Volume XII is a bibliography of the preceding volumes.) London and New York, 1907-15.

(8) Dewey, John, and Tufts, James H. Ethics. New York, 1908.

2. Studies of Traits of Individual Peoples:

(1) Fouillée, A. Psychologie du peuple français. Paris, 1898.

(2) Rhŷs, J., and Brynmor-Jones, D. The Welsh People. London, 1900.

(3) Fishberg, M. The Jews. A study of race and environment. London and New York, 1911.

(4) Strausz, A. Die Bulgaren. Ethnographische Studien. Leipzig, 1898.

(5) Stern, B. Geschichtete der öffentlichen Sittlichkeit in Russland. Kultur, Aberglaube, Sitten, und Gebraüche. Zwei Bände. Berlin, 1907-8.

(6) Krauss, F. S. Sitte und Brauch der Südslaven. Wien, 1885.

(7) Kidd, D. The Essential Kafir. London, 1904.

(8) Spencer, B., and Gillen, F. J. The Native Tribes of Central Australia. London and New York, 1899.

C. Human Nature and Industry

(1) Taylor, F. W. The Principles of Scientific Management. New York, 1911.

(2) Tead, O., and Metcalf, H. C. Personnel Administration; Its Principles and Practice. New York, 1920.

(3) Tead, O. Instincts in Industry. A study of working-class psychology. Boston, 1918.

(4) Parker, C. H. The Casual Laborer and Other Essays. New York, 1920.

(5) Marot, Helen. Creative Impulse in Industry; A Proposition for Educators. New York, 1918.

(6) Williams, Whiting. What's on the Worker's Mind. New York, 1920.

(7) Hollingworth, H. L. Vocational Psychology; Its Problems and Methods. New York, 1916.

III. PERSONALITY

A. The Genesis of Personality

(1) Baldwin, J. M. Mental Development in the Child and the Race: Methods and Processes. 3d rev. ed. New York and London, 1906.

(2) Baldwin, J. M. Social and Ethical Interpretations in Mental Developments. Chap ii, "The Social Person," pp. 66-98. 3d ed., rev. and enl. New York and London, 1902.

(3) Sully, J. Studies of Childhood. rev. ed. New York, 1903.

(4) King, I. The Psychology of Child Development. Chicago, 1903.

(5) Thorndike, E. L. Notes on Child Study. New York, 1903.

(6) Hall, G. S. Adolescence. Its psychology and its relations to physiology, anthropology, sociology, sex, crime, religion, and education. 2 vols.. New York, 1904.

(7) Shinn, Milicent W. Notes on the Development of a Child. University of California Studies. Nos. 1-4. 1893-99.

(8) Kirkpatrick, E. A. The Individual in the Making. Boston and New York, 1911.

B. Psychology and Sociology of the Person

(1) James, William. The Principles of Psychology. Chap, x, "Consciousness of Self," I, 291-401. New York, 1890.

(2) Bekhterev, V. M. (Bechterew, W. v.) Die Persönlichkeit und die Bedingungen ihrer Entwicklung und Gesundheit. "Grenzfragen des Nerven und Seelenlebens," No. 45. Wiesbaden, 1906.

(3) Binet, A. Alterations of Personality. Translated by H. G. Baldwin. New York, 1896.

(4) Ribot, T. A. Diseases of Personality. Authorized translation, 2d rev. ed. Chicago, 1895.

(5) Adler, A. The Neurotic Constitution. New York, 1917.

(6) Prince, M. The Dissociation of a Personality. A biographical study in abnormal psychology. 2d ed. New York, 1913.

(7) ——. The Unconscious. The fundamentals of human personality, normal and abnormal. New York, 1914.

(8) Coblenz, Felix. Ueber das betende Ich in den Psalmen. Ein Beitrag zur Erklaerung des Psalters. Frankfort, 1897.

(9) Royce, J. Studies of Good and Evil. A series of essays upon problems of philosophy and life. Chap, viii, "Some Observations on the Anomalies of Self-consciousness," pp. 169-97. A paper read before the Medico-Psychological Association of Boston, March 21, 1894. New York, 1898.

(10) Stern, B. Werden and Wesen der Persönlichkeit. Biologische und historische Untersuchungen über menschliche Individualität. Wien und Leipzig, 1913.

(11) Shand, A. F. The Foundations of Character. Being a study of the tendencies of the emotions and sentiments. London, 1914.

C. Materials for the Study of the Person

(1) Theophrastus. The Characters of Theophrastus. Translated from the Greek by R. C. Jebb. London, 1870.

(2) La Bruyère, Jean de. Les caractères, ou les mœurs de ce siècle. Paris, 1916. The "Characters" of Jean de La Bruyère. Translated from the French by Henri Van Laun. London, 1885.

(3) Augustinus, Aurelius. The Confessions of St. Augustine. Translated from the Latin by E. B. Pusly. London, 1907.

(4) Wesley, John. The Journal of the Rev. John Wesley. New York and London, 1907.

(5) Amiel, H. Journal intime. Translated by Mrs. Ward. London and New York, 1885.

(6) Cellini, Benvenuto. Memoirs of Benvenuto Cellini. Translated from the Italian by J. A. Symonds. New York, 1898.

(7) Woolman, John. Journal of the Life, Gospel Labors, and Christian Experiences of That Faithful Minister of Jesus Christ, John Woolman. Dublin, 1794.

(8) Tolstoy, Count Leon. My Confession. Translated from the Russian. Paris and New York, 1887. My Religion. Translated from the French. New York, 1885.

(9) Riley, I. W. The Founder of Mormonism. A psychological study of Joseph Smith, Jr. New York, 1902.

(10) Wilde, Oscar. De Profundis. New York and London, 1905.

(11) Keller, Helen. The Story of My Life. New York, 1903.

(12) Simmel, Georg. Goethe. Leipzig, 1913.

(13) Thomas, W. I., and Znaniecki, F. The Polish Peasant in Europe and America. "Life-Record of an Immigrant," III, 89-400. Boston, 1919.

(14) Probst, Ferdinand. Der Fall Otto Weininger. "Grenzfragen des Nerven- und Seelenlebens," No. 31. Wiesbaden, 1904.

(15) Anthony, Katherine. Margaret Fuller. A psychological biography. New York, 1920.

(16) Willard, Josiah Flynt. My Life. New York, 1908.

(17) ——. Tramping with Tramps. New York, 1899.

(18) Cummings, B. F. The Journal of a Disappointed Man, by Barbellion, W. N. P. [pseud.] Introduction by H. G. Wells. New York, 1919.

(19) Audoux, Marguerite. Marie Claire. Introduction by Octave Mirabeau. Translated from the French by J. N. Raphael. London and New York, 1911.

(20) Clemens, Samuel L. The Adventures of Tom Sawyer, by Mark Twain [pseud.]. New York, 1903.

(21) Hapgood, Hutchins. The Autobiography of a Thief. New York, 1903.

(22) Johnson, James W. The Autobiography of an ex-Colored Man. Published anonymously. Boston, 1912.

(23) Washington, Booker T. Up from Slavery. An autobiography. New York, 1901.

(24) Du Bois, W. E. B. The Souls of Black Folk. Chicago, 1903.

(25) Beers, C. W. A Mind That Found Itself. An autobiography. 4th rev. ed. New York, 1917.

IV. INDIVIDUAL DIFFERENCES

A. The Nature of Individual Differences

(1) Thorndike, E. L. Individuality. Boston, 1911.

(2) ——. "Individual Differences and Their Causes," Educational Psychology, III, 141-388. New York, 1913-14.

(3) Stern, W. Ueber Psychologie der individuellen Differenzen. Leipzig, 1900.

(4) Hollingworth, Leta S. The Psychology of Subnormal Children. Chap. i. "Individual Differences." New York, 1920.

B. Mental Differences

(1) Goddard, H. H. Feeble-mindedness. Its causes and consequences. New York, 1914.

(2) Tredgold, A. F. Mental Deficiency. 2d ed. New York, 1916.

(3) Bronner, Augusta F. The Psychology of Special Abilities and Disabilities. Boston, 1917.

(4) Healy, William. Case Studies of Mentally and Morally Abnormal Types. Cambridge, Mass., 1912.

C. Temperamental Differences

1. Systematic Treatises:

(1) Fouillée, A. Tempérament et caractère selon les individus, les sexes et les races. Paris, 1895.

(2) Hirt, Eduard. Die Temperamente, ihr Wesen, ihre Bedeutung, für das seelische Erleben und ihre besonderen Gestaltungen. "Grenzfragen des Nerven- und Seelenlebens," No. 40. Wiesbaden, 1905.

(3) Hoch, A., and Amsden, G. S. "A Guide to the Descriptive Study of Personality," Review of Neurology and Psychiatry, (1913), pp. 577-87.

(4) Kraepelin, E. Psychiatrie. Ein Lehrbuch für Studierende und Ärzte. Vol. IV, chap. xvi, pp. 1973-2116. 8th ed. 4 vols. Leipzig, 1909-15.

(5) Loewenfeld, L. Ueber die geniale Geistesthätigkeit mit besonderer Berücksichtigung des Genie's für bildende Kunst. "Grenzfragen des Nerven- und Seelenlebens," No. 21. Wiesbaden, 1903.

2. Temperamental Types:

(1) Lombroso, C. The Man of Genius. Translated from the Italian. London and New York, 1891.

(2) ——. L'uomo delinquente in rapporto all'antropologia, alla giurisprudenza ed alle discipline carcerarie. 3 vols. 5th ed. Torino, 1896-97.

(3) Goring, Charles. The English Convict. A statistical study. London, 1913.

(4) Wilmanns, Karl. Psychopathologie des Landstreichers. Leipzig, 1906.

(5) Downey, June E. "The Will Profile." A tentative scale for measurement of the volitional pattern. University of Wyoming Bulletin, Laramie, 1919.

(6) Pagnier, A. Le vagabond. Paris, 1910.

(7) Kowalewski, A. Studien zur Psychologie der Pessimismus. "Grenzfragen des Nerven- und Seelenlebens," No. 24. Wiesbaden, 1904.

D. Sex Differences

(1) Ellis, H. H. Man and Woman. A study of human secondary sexual characters. 5th rev. ed. London and New York, 1914.

(2) Geddes, P., and Thomson, J. A. The Evolution of Sex. London, 1889.

(3) Thompson, Helen B. The Mental Traits of Sex. An experimental investigation of the normal mind in men and women. Chicago, 1903.

(4) Montague, Helen, and Hollingworth, Leta S. "The Comparative Variability of the Sexes at Birth," American Journal of Sociology, XX (1914-15), 335-70.

(5) Thomas, W. I. Sex and Society. Chicago, 1907.

(6) Weidensall, C. J. The Mentality of the Criminal Woman. A comparative study of the criminal woman, the working girl, and the efficient working woman, in a series of mental and physical tests. Baltimore, 1916.

(7) Hollingworth, Leta S. "Variability as Related to Sex Differences in Achievement," American Journal of Sociology, XIX (1913-14), 510-30. [Bibliography.]

E. Racial Differences

(1) Boas, F. The Mind of Primitive Man. New York, 1911.

(2) Cambridge Anthropological Expedition to Torres Straits. 5 vols. Cambridge, 1901-08.

(3) Le Bon, G. The Psychology of Peoples. Its influence on their evolution. New York and London, 1898. [Translation.]

(4) Reuter, E. B. The Mulatto in the United States. Boston, 1918.

(5) Bruner, F. G. "Hearing of Primitive Peoples," Archives of Psychology, No. 11. New York, 1908.

(6) Woodworth, R. S. "Racial Differences in Mental Traits," Science, new series, XXI (1910), 171-86.

(7) Morse, Josiah. "A Comparison of White and Colored Children Measured by the Binet-Simon Scale of Intelligence," Popular Science Monthly, LXXXIVC (1914), 75-79.

(8) Ferguson, G. O., Jr. "The Psychology of the Negro, an Experimental Study," Archives of Psychology, No. 36. New York, 1916. [Bibliography.]

TOPICS FOR WRITTEN THEMES

1. Cooley's Conception of Human Nature

2. Human Nature and the Instincts

3. Human Nature and the Mores

4. Studies in the Evolution of the Mores; Prohibition, Birth Control, the Social Status of Children

5. Labor Management as a Problem in Human Nature

6. Human Nature in Politics

7. Personality and the Self

8. Personality as a Sociological Concept

9. Temperament, Milieu, and Social Types; the Politician, Labor Leader, Minister, Actor, Lawyer, Taxi Driver, Chorus Girl, etc.

10. Bohemian, Philistine, and Genius

11. The Beggar, Vagabond, and Hobo

12. Literature as Source Material for the Study of Character

13. Outstanding Personalities in a Selected Community

14. Autobiography as Source Material for the Study of Human Nature

15. Individual and Racial Differences Compared

16. The Man of Genius as a Biological and a Sociological Product

17. The Jukes and Kindred Studies of Inferior Groups

18. History of the Binet-Simon Tests

19. Mental Measurements and Vocational Guidance

20. Psychiatry and Juvenile Delinquency

21. Recent Studies of the Adolescent Girl

22. Mental Inferiority and Crime

QUESTIONS FOR DISCUSSION

1. Is human nature that which is fundamental and alike in all individuals or is it those qualities which we recognize and appreciate as human when we meet them in individuals?

2. What is the relation between original nature and the environment?

3. What is the basis for the distinction made by Thorndike between reflexes, instincts, and inborn capacities?

4. Read carefully Thorndike's Inventory of Original Tendencies. What illustrations of the different original traits occur to you?

5. What do you understand by Park's statement that man is not born human?

6. "Human nature is a superstructure." What value has this metaphor? What are its limitations? Suggest a metaphor which more adequately illustrates the relation of original nature to acquired nature.

7. In what sense can it be said that habit is a means of controlling original nature?

8. What, according to Park, is the relation of character to instinct and habit? Do you agree with him?

9. What do you understand by the statement that "original nature is blind?"

10. What relation has an ideal to (a) instinct and (b) group life?

11. In what sense may we speak of the infant as the "natural man"?

12. To what extent are racial differences (a) those of original nature, (b) those acquired from experience?

13. What evidence is there for the position that sex differences in mental traits are acquired rather than inborn?

14. How do you distinguish between mentality and temperament?

15. How do you account for the great differences in achievement between the sexes?

16. What evidence is there of temperamental differences between the sexes? between races?

17. In the future will women equal men in achievement?

18. What, in your judgment, is the range of individual differences? Is it less or greater than that of racial and sex differences?

19. What do you understand is the distinction between racial inheritance as represented by the instincts, and innate individual differences? Do you think that both should be regarded as part of original nature?

20. What is the effect of education and the division of labor (a) upon instincts and (b) upon individual differences?

21. Are individual differences or likenesses more important for society?

22. What do you understand to be the significance of individual differences (a) for social life; (b) for education; (c) for industry?

23. What do you understand by the remaking of human nature? What is the importance of this principle for politics, industry, and social progress?

24. Explain the proverbs: "Habit is ten times nature," "Habit is second nature."

25. What is Cooley's definition of human nature? Do you agree or disagree with him? Elaborate your position.

26. To what extent does human nature differ with race and geographic environment?

27. How would you reinterpret Aristotle's and Hobbes's conception of human nature in the light of this definition?

28. What illustrations of the difference between folkways and mores would you suggest?

29. Classify the following forms of behavior under (a) folkways or (b) mores: tipping the hat, saluting an officer, monogamy, attending church, Sabbath observance, prohibition, immersion as a form of baptism, the afternoon tea of the Englishman, the double standard of morals, the Ten Commandments, the Golden Rule, the Constitution of the United States.

30. What do you understand to be the relation of the mores to human nature?

31. In what way is (a) habit related to will? (b) custom related to the general will?

32. How do you distinguish the general will (a) from law, (b) from custom?

33. Does any one of the following terms embody your conception of what is expressed by Sittlichkeit: good form, decency, self-respect, propriety, good breeding, convention?

34. Describe and analyze several concrete social situations where Sittlichkeit rather than conscience or law controlled the behavior of the person or of the group.

35. What do you understand by convention? What is the relation of convention to instinct? Is convention a part of human nature to the same extent as loyalty, honor, etc.?

36. What is meant by the saying that mores, ritual, and convention are in the words of Hegel "objective mind"?

37. "The organism, and the brain as its highest representative, constitute the real personality." What characteristics of personality are stressed in this definition?

38. Is there any significance to the fact that personality is derived from the Latin word persona (mask worn by actors)?

39. Is the conventional self a product of habit, or of Sittlichkeit, or of law, or of conscience?

40. What is the importance of other people to the development of self-consciousness?

41. Under what conditions does self-consciousness arise?

42. What do you understand by personality as a complex? As a total of mental complexes?

43. What is the relation of memory to personality as illustrated in the case of dual personality and of moods?

44. What do you understand Cooley to mean by the looking-glass self?

45. What illustration would you suggest to indicate that an individual's sense of his personality depends upon his status in the group?

46. "All the world's a stage, and all the men and women merely players." Is personality adequately defined in terms of a person's conception of his rôle?

47. What is the sociological significance of the saying, "If you would have a virtue, feign it"?

48. What, according to Bechterew, is the relation of personality to the social milieu?

49. What do you understand by the personality of peoples? What is the relation of the personality of peoples and the personalities of individuals who constitute the peoples?

50. What do you understand by the difference between nature and nurture?

51. What are acquired characters? How are they transmitted?

52. What do you understand by the Mendelian principles of inheritance: (a) the hypothesis of unit characters; (b) the law of dominance; and (c) the law of segregation?

53. What illustrations of the differences between instinct and tradition would you suggest?

54. What is the difference between the blue eye as a defect in pigmentation, and of feeble-mindedness as a defective characteristic?

55. Should it be the policy of society to eliminate all members below a certain mental level either by segregation or by more drastic measures?

56. What principles of treatment of practical value to parents and teachers would you draw from the fact that feeble inhibition of temper is a trait transmitted by biological inheritance?

57. Why is an understanding of the principles of biological inheritance of importance to sociology?

58. In what two ways, according to Keller, are acquired characters transmitted by tradition?

59. Make a list of the different types of things derived by the person (a) from his biological inheritance, and (b) from his social heritage.

60. What traits, temperament, mentality, manner, or character, are distinctive of members of your family? Which of these have been inherited, which acquired?

61. What problems in society are due to defects in man's original nature?

62. What problems are the result of defects in folkways and mores?

63. In what way do racial temperament and tradition determine national characteristics? To what extent is the religious behavior of the negro determined (a) by temperament, (b) by imitation of white culture? How do you explain Scotch economy, Irish participation in politics, the intellectuality of the Jew, etc.?

FOOTNOTES: