CHAPTER XIII

HABIT FORMATION: THE LABYRINTH HABIT

The labyrinth method—Problems—Preliminary tests—Comparison of the behavior of the dancer in a maze with that of the common mouse—Evolution of a labyrinth method—Records of time and records of errors—Simple and effective method of recording the path—Curves of habit formation—Regular and irregular labyrinths—Points for a standard labyrinth—Values and defects of the labyrinth method.

CHAPTER XIV

HABIT FORMATION: THE DISCRIMINATION METHOD

Quantitative versus qualitative results—Motives—Precautions— Preference—Results of systematic habit-forming experiments—Curves of habit formation—Meaning of irregularity in curve—Individual differences—Comparison of curves for discrimination habits with those for labyrinth habits—Averages—The index of modifiability as a measure of docility—Reliability of the index.

CHAPTER XV

THE EFFICIENCY OF TRAINING METHODS

Importance of measuring the efficiency of educational methods—Rapidity of learning and permanency of modifications wrought by training—Results of a study of the efficiency of discrimination methods—Comparison by means of indices of modifiability—Number of tests per series versus number of series—Efficiency as measured by memory tests.

CHAPTER XVI