Questions may be considered from the point of view of the kind of response they call for. Probably the most common kind of question is the one that calls for facts as answers. It involves memory--but memory of a rote type. It does not require thinking. All drill questions are of this type. The connections aroused are definitely final in a certain order, and the question simply sets off the train of bonds that leads directly to the answer. Another type of question involving the memory process is the one which initiates recall, but here thought is active. The answer cannot be gained in a mechanical way, but selection and rejection are involved. The answer is to be found by examining past experience, but only in a thoughtful way. Questions which call for comparison form another type. These may vary from those which involve the comparison of sense material to those which involve the comparison of policies or epochs. Words, characters, plots, definitions, plans, subjects--everything with which intellectual life deals is open to comparison. Comparison is one of the steps in the process of reasoning, and hence questions of this type are extremely important. Then there are the questions which arouse the response of analysis. These questions vary among themselves according to the type of analysis needed, whether piecemeal attention or analysis due to varying concomitants. The former drives the thinker through gradual recognition and elimination of the known elements to a consciousness of the only partly known. The latter, by attracting the attention to unvarying factors in the changing situations, forces out the new and until then unknown element. Some questions require judgment as a response. The judgment may be one concerning relationships, or concerning worth or value, or be merely a matter of definition--all questions calling for criticism are of this type. In any case this type of question involves the thought element at its best. The question requiring organization forms another type. There is no sharp line of division between these types of questions. No one of them should be used exclusively. Some of them imply operations of a simple type as well as the particular response demanded by that form. For instance, some of the questions involving analysis imply comparison and recalling. A judgment question might call for all the simple processes noted above and others as well. The responses then vary in complexity and difficulty. The order of advance in both complexity and difficulty of the response is from the mere drill question to the judgment question.