RU2564224C2 - Fast test of trainee knowledge - Google Patents

Abstract

FIELD: physics.

SUBSTANCE: correct reply versions and the number of tested person are marked hereby by painting the appropriate white fields. Correct reply versions, the number of questions and the number of tested person in general list of tested persons are automatically read by optical method, for example, by web-camera. For automatic determination of the position, orientation and scaling of paper sheets by optical reader, said sheets are provided with optically readable graphical marks composed of three black circles located at two top angles and the left bottom angle of said sheets. Arrayed data of reply versions selected by tested persons and collected by the reader are automatically analysed to output the final results.

EFFECT: fast polling of large groups, simple implementation, automated calculation of test results.

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Description

The invention relates to the field of computer testing technologies in the education and training of specialists for various fields of knowledge and specialties.

Currently, in connection with the development of computer training methods and the automation of assessment procedures for acquired knowledge and skills, the field of automated control of knowledge among students is rapidly developing, implemented mainly on the basis of the development of new computer tests.

A known method of assessing the knowledge of a group of students according to the results of their survey, including the use of demonstration tools (RF Patent N 2060559, G09B 3/00, publ. 1996). However, in this known method, the survey of students is performed using a special device for monitoring knowledge. Moreover, in addition to the fact that material means are necessary for acquiring such a device, it should be noted its low productivity, since a survey using such a device is conducted individually for each respondent. Instantly interviewing a large audience using such a tool is not possible.

A known method of assessing the knowledge of a group of students according to the results of their survey, including the use of demonstration tools in the form of graphic images on a computer screen (RF patent N 2110846, G09B 19/06, publ. 1998). However, this method provides for the possibility of polling one student on one computer.

The closest analogue of the invention adopted as a prototype is a method for assessing the knowledge of a group of trainees based on the results of their survey (RF patent N 2141688, G09B, November 20, 1999), including the use of demonstration tools, according to the invention, respondents use conditional gestures as demonstration tools, and / or facial expressions, and / or body movements, while during the response, the eyes of the respondents are closed so that they do not see the answers of others, but respond independently. The advantage of this method is that it provides a quick survey of a large group of students.

The disadvantage of this method is the difficulty of answering questions that have many possible answers, the inability to answer heterogeneous questions, there is no automated calculation of test results.

The objective of the invention is, while maintaining the ability to quickly interrogate large groups, ease of implementation, expanding operational capabilities through automated calculation of test results, the possibility of using heterogeneous questions in testing, having a large number of answer options.

This technical result is achieved by the fact that in the method of rapid testing of knowledge of students trained, all test participants are presented with the same set of questions. Test answers are entered in standard paper forms, and for the correct answer options on the paper form, several white fields are highlighted next to the question numbers, indicated by the numbers of the number of the correct answer. To indicate dozens, ten white fields marked with numbers from 0 to 9, ten white fields for indicating units from the number of the tested, marked with numbers from 0 to 9 are highlighted on the paper form on the paper blank. Correct answers and the number of the tested are marked by the testers fields. The correct answers to questions, taking into account the numbers of questions, the number of the testee in the general list of testees are automatically read by the optical method, such as a webcam. To automatically determine the position, orientation and scaling of the paper form in the optical reader, the form contains optically readable graphic marks made in the form of three black circles, which are located in the two upper corners and in the lower left corner of the paper forms. An array of the selected answer options collected by the optical reader is automatically analyzed and the final grades are displayed. According to the invention, the brightness of each field Ai is determined by the optical method, all the brightnesses Ai are arranged in ascending order of brightness, receiving a new array Aij, where i is the field number, j is the number in the list of brightnesses in increasing brightness, Aij <Ak (j + l), is determined the brightness difference of adjacent fields dAj = Ai (j + l) -Akj, if there is a difference dAj that is twice as large as all other differences, then this difference separates the filled and unshaded fields, all fields Akj with the given j and lower j values are filled, all fields Akj with large j are not painted over.

The proposed technical solution is illustrated by the drawing, which shows a paper form used in the process of express testing.

Rapid testing of students' knowledge is as follows. All testers are presented with the same set of questions. Test answers are entered in standard paper forms (Fig. 1). The form is intended for automatic reading by the optical method, therefore, the fields on the form are located strictly in certain and fixed positions relative to the dimensions of the form. During optical reading of the form, for example with a web camera, a digital image of the form is created, and the position and brightness of fields 2, 3, 4, 5 are determined on this image.

For the correct answer options on the paper form, next to the numbers of questions 1, several white fields 2 are highlighted, indicated by the numbers of the numbers of the correct answer. To indicate dozens from the number of the person being tested on the paper, 3 ten white fields are marked, indicated by numbers from 0 to 9, ten white fields to indicate units from the number of the person being tested, indicated by numbers from 0 to 9. To automatically determine the position, orientation and scaling of the paper in optical reader on the form there are optically readable graphic marks made in the form of three black circles 4, which are located in the two upper corners and in the lower left corner of the paper forms. The lower right corner 5 is empty, and this allows you to define the top and bottom of the form.

Fields 2, 3, 4, 5 are intended for automatic reading by an optical reader. Moreover, when reading fields 2 and 3, it is determined whether the corresponding field is shaded or not by the tested. If filled, this means that this field was selected by the test as the correct answer. Moreover, in each block (answers to questions 2, in test number 3), the brightness of each field Ai is determined by the optical method, where i is from 0 to 9 for field 3, from 1 to 9 for field 2. All brightness Ai are arranged in ascending order of value brightness, getting a new array Aij, where i is the number of the field, j is the number in the list of brightnesses in increasing brightness: Aij <Ak (j + l). The brightness difference of adjacent fields dAj = Ai (j + l) -Akj is determined. If there is a difference dAj, which is twice as large as all the other differences, then this difference separates the filled and unfilled fields: all fields Akj with a given j and lower values of j are filled, all fields Akj with large j are not filled.

We give a simple example. Let the answer fields 2 to the first question have the brightness Ai = (111, 102, 107, 65, 109, 101, 110, 103, 108, 106). We arrange all the brightnesses in increasing order: Aij = (65, 101, 102, 103, 106, 107, 108, 109, 110, 111). We calculate the differences in brightness: dAj = (36, 1, 1, 3, 1, 1, 1, 1, 1, 1). The difference 36 is twice as large as all the other differences, and this difference separates the filled and unpainted fields. Obviously, a field with a brightness of 65 is shaded (selected by the user as the correct answer), all other fields are not shaded.

Reading fields 4 and 5 allows you to determine the position, orientation, and is used when scaling a paper form in an optical reader. The side of the form, on which there are two black circles 4, and the distance between which is large, is defined as the upper one. The side of the form, on which there are two black circles 4, and the distance between which is less, is defined as the left side. In this case, the distances between the black circles 4 specify the scale, the dimensions of the form when reading (width and height), and the positions of fields 2 and 3 are determined relative to them.

Fields 6-11 are not intended for automatic reading by the optical reader and are intended for the possibility of working with the form in manual mode. Additional data is entered in these fields: 6 - date of testing, 7 - name of the group of tested, 8 - name of the subject of testing, 9, 10, 11 - surname, name, patronymic of the tested.

Thus, in comparison with the closest analogue, the proposed method for express testing of student knowledge has significant advantages due to the automated calculation of test results by optical methods, allowing you to confidently distinguish between filled and unshaded fields.

Claims (1)

A way to expressly test the knowledge of students, which consists in presenting a fixed set of questions and various answer options for each question to the testers, in analyzing the answer options chosen by the testers and outputting the final grades, all the testers are presented with the same set of questions, the test takers are entered in standard paper forms, and under the correct ones answer options on a paper form next to the question numbers, several white fields are highlighted, indicated by the numbers of the number of the correct answer, for identification When reading tens of numbers from the testee’s number on the paper form, ten white fields marked with numbers from 0 to 9 are highlighted, ten white fields for designating units from the testee’s number marked with numbers from 0 to 9, the correct answers and the testee’s number are marked by the testers by filling in the corresponding white fields , the correct answers to questions, taking into account the numbers of questions, the number of the tested in the general list of tested automatically read by the optical method, to automatically determine the position, or In the optical reader on the form, there are optically readable graphic marks made in the form of three black circles, which are located in the two upper corners and in the lower left corner of the paper forms, characterized in that the brightness of each field Ai is determined by the optical method, all luminosities Ai are arranged in increasing brightness values, getting a new array Aij, where i is the number of the field, j is the number in the list of brightnesses in increasing brightness, Aij <Ak (j + 1), the brightness difference of neighboring fields dAj = Ai (j + 1 ) -Akj, if there is a difference dAj that is twice as large as all the other differences, then this difference separates the filled and unshaded fields, all fields Akj with a given j and lower values of j are filled, all fields Akj with large j are not filled.