Patent Application
20160111011
1. Field of the Invention
The present invention relates to a system and method for evaluating reading comprehension in students, and, in particular, to a system and method for validating text dependent questions of reading passages during validity and reliability stages of test development as well as validating the types of answers to provide teachers with student information.
2. Description of the Related Art
Some current methods of instruction require a teacher to test the student one-on-one. Such methods do not allow for data collection and coding of incorrect answers to draw conclusions about students' areas of need. Such methods also do not allow for teacher to see growth over a short period of time and do not allow a teacher to individually test each student for 30-40 minutes every week. Few materials exist that assess reading comprehension at the secondary level and progress monitoring tools that are available do not assess reading comprehension in a way that would help teachers adapt instruction. There is a need in secondary schools for product and method that can assist teachers in this area.
This Summary is provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This Summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.
In one embodiment, the present invention is a system and method for evaluating reading comprehension.
In an alternative embodiment, the present invention is a system and method for validating test questions to be used for evaluating reading comprehension.
Other aspects, features, and advantages of the present invention will become more fully apparent from the following detailed description, the appended claims, and the accompanying drawings in which like reference numerals identify similar or identical elements.
In the drawings, like numerals indicate like elements throughout. Certain terminology is used herein for convenience only and is not to be taken as a limitation on the present invention. The terminology includes the words specifically mentioned, derivatives thereof and words of similar import. As used herein, the term “test subject” can be used to mean a student in a classroom environment, and/or a person used to help a test developer determine whether a question on a test accurately reflects whether the question is suitable to meet the test developer's desired outcome.
The embodiments illustrated below are not intended to be exhaustive or to limit the invention to the precise form disclosed. These embodiments are chosen and described to best explain the principle of the invention and its application and practical use and to enable others skilled in the art to best utilize the invention.
Reference herein to “one embodiment” or “an embodiment” means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase “in one embodiment” in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments necessarily mutually exclusive of other embodiments. The same applies to the term “implementation.”
As used in this application, the word “exemplary” is used herein to mean serving as an example, instance, or illustration. Any aspect or design described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other aspects or designs. Rather, use of the word exemplary is intended to present concepts in a concrete fashion.
Additionally, the term “or” is intended to mean an inclusive “or” rather than an exclusive “or”. That is, unless specified otherwise, or clear from context, “X employs A or B” is intended to mean any of the natural inclusive permutations. That is, if X employs A; X employs B; or X employs both A and B, then “X employs A or B” is satisfied under any of the foregoing instances. In addition, the articles “a” and “an” as used in this application and the appended claims should generally be construed to mean “one or more” unless specified otherwise or clear from context to be directed to a singular form.
Although the subject matter described herein may be described in the context of illustrative implementations to process one or more computing application features/operations for a computing application having user-interactive components the subject matter is not limited to these particular embodiments. Rather, the techniques described herein can be applied to any suitable type of user-interactive component execution management methods, systems, platforms, and/or apparatus.
Unless explicitly stated otherwise, each numerical value and range should be interpreted as being approximate as if the word “about” or “approximately” preceded the value of the value or range.
The use of figure numbers and/or figure reference labels in the claims is intended to identify one or more possible embodiments of the claimed subject matter in order to facilitate the interpretation of the claims. Such use is not to be construed as necessarily limiting the scope of those claims to the embodiments shown in the corresponding figures.
It should be understood that the steps of the exemplary methods set forth herein are not necessarily required to be performed in the order described, and the order of the steps of such methods should be understood to be merely exemplary. Likewise, additional steps may be included in such methods, and certain steps may be omitted or combined, in methods consistent with various embodiments of the present invention.
Although the elements in the following method claims, if any, are recited in a particular sequence with corresponding labeling, unless the claim recitations otherwise imply a particular sequence for implementing some or all of those elements, those elements are not necessarily intended to be limited to being implemented in that particular sequence.
Referring to the Figures in general, a system 100 for evaluating reading comprehension according to a first exemplary embodiment of the present invention is shown. System 100 is specifically developed for comprehension evaluation of students in secondary school, and can be used for other educational levels as well. System 100 contains age and grade appropriate reading passages and a plurality of related questions to each passage with multiple choice answers. Students can be tested several times during a school year with system 100 using each time a different passage and its related questions. Students can also be monitored for progress on a regular basis, such as, for example, weekly. System 100 can be downloaded and used in computers, tablets and mobile phones. System 100 has the capability to record in its log file several different pieces of information such as, for example: the date, participant information, the timings of passage reading, questions and answers, selected answers and passage reviewing times during the examination. All such information can be used for a better and more comprehensive evaluation of student's performance which is not currently possible with paper and pencil tests where only right or wrong answers and total examination time can be recorded.
In an exemplary embodiment, the 100 is reading assessment for 6th-12th grade, although those skilled in the art will recognize that system 100 can be developed for different grade levels as well. System 100 is intended to be a single piece of assessment for student data and is not meant to be the only assessment of a student's ability. System 100 is developed to assess multiple students at the same time, with test results being immediately sent to the students' teacher.
System 100 requires a test developer to develop a test with a plurality of answers including a single correct answer and a remainder of incorrect answers, or “distractors” (i.e., a multiple-choice test). The questions are developed from a particular text that a test subject will be required to read or listen to. The remainder of this disclosure, however, will be directed toward text that a test subject will be required to read.
System 100 can be used to assess one or more test subjects at the same time and can be used to provide immediate feedback on the test subjects' results. Additionally, the test subjects will be able to see graphs that explain the results in the progress that they are making. Additionally, system 100 can be used to assess validity and reliability of test questions during test development.
During test development, when developing the test questions, if, for example, four potential answers are provided, only one answer is the correct answer, with the remaining three answers being distractors. The three distractors, however, can have different levels of incorrectness. For example, a first distractor can be a text-based literal fact that is not related to the question and is designed to attract students who struggle with reading the question and students who struggle locating and/or retrieving information from the text. A second distractor is a text-based literal fact with incomplete information that is somewhat related to the question and is designed to attract students who struggle with reading the question and students who struggle locating and/or retrieving information from the text. The third distractor relates to common background knowledge not in the text, and is designed to attract students who over rely on prior knowledge or who do not read the text.
In an exemplary embodiment, when grading a test, the grading scale can be set such that the different answers have different score values. For example, the correct answer is worth 3 points, the first distractor can be worth 2 points, the second distractor can be worth 1 point, and the third distractor can be worth 0 points. With this scoring scheme, if, for example, a test has 10 questions, then the highest score would be 30 points. Subsequent testing (using different passages) may be used to determine if a test subject is doing a better job of reading and evaluating the text, but still getting incorrect answers. For example, if, during the first round of testing, the test subject got questions wrong and selected the second or third distractor in an amount of the questions, but if, during a second round of testing, the test subject, while still selecting incorrect answers, selected the first distractors in an amount of the questions, it may be able to be determined that, even though the test subject is still selecting incorrect answers, the test subject is doing a better job at reading and comprehending the text, which may correlate with a change in the test subject's brain function over time.
During test development, to assist the test developer in determining whether the test subject is answering the question based on his/her recent reading of the text and not based on the his/her long-term memory, functional near infrared (“fNIR”) spectroscopy can be used. It is known that fNIR spectroscopy can be used to measure brain frontal lobe usage. It is also known that the frontal lobe is the source of short-term memory in humans.
By applying fNIR hardware to a test subject to validate the test questions, if fNIR results indicate that the test subject used his/her short-term memory to answer the question, it can be determined that the test subject is basing his/her answer on recently read material, as desired by the test developer. The test subject would typically use short-term memory to select either the correct answer or one of the first two distractors.
Additionally, while the examples provided herein are text passages with words that comprise stories, it is within the scope of the present invention that the text can be numerals as well, requiring the test subject to perform mathematical calculations, with numerical answers as the correct answer and the distractors. For example, the multiplication text problem of 8×7 will have the correct answer of 56, a first distractor of 54 (which may indicate that the test subject tried to multiply the numbers and simply arrived at the wrong answer), a second distractor of 15 (which may indicate that the test subject added the numbers instead of multiplied the numbers), and a third distractor of 87 (which may indicate that the test subject merely put the 8 and the 7 together to form 87.
A schematic drawing of an exemplary fNIR system 110 for use with system 100 is shown
If the fNIR system 110 determines that the test subject used his/her short-term memory to answer the question, but selected a distractor instead of the correct answer, the question can still be determined to be a question that requires short-term memory to answer and, therefore, is a valid question based on the text. It can be noted, however, that, if many or all of the test subjects incorrectly answer the question, even if the fNIR results indicate that the test subjects used their short-term memory to answer the question, the question may need to be reworded or dropped entirely.
If, however, the fNIR results indicate that the test subject did not use his/her short-term memory to answer the question, but instead used his/her long-term memory to answer the question, it can be determined that the test subject is either basing his/her answer on long-term memory, or did not read the passage and that the question may not be suitable to determine the test subject's comprehension of the recently read text. The test subject would typically use long-term memory in selecting the third distractor.
Additionally, if the test subject selected one of the distractors, the test subject can be directed to re-read the passage and answer the question again. If the answer is still wrong, but is “less” wrong than the first wrong answer (i.e., the first wrong answer was the third distractor and the second wrong answer was the second distractor), then it can be determined that the test subject appears to be making progress in comprehending the text.
An exemplary reading passage, along with a correct answer and three different types of distractors, is provided below.
A Liger's Tale
Question:
1. Why are ligers rare?
It may be desired to use original text passages and not use prior written text passages that the test subject may have had an opportunity to previously read. This will ensure that the text passage is brand new to the test subject.
An exemplary use of the system 100 and method according to the present invention is shown in flowchart 200, shown
In step 208, if the fNIR device measures frontal lobe brain activity, which is indicative of the usage of short-term memory to answer the question, the question is validated for that test subject. In step 210, however, if the fNIR device does not measure frontal brain lobe activity, which is indicative of the usage of long-term memory to answer the question, the question is invalid for that test subject.
Steps 204-210 can be repeated for a plurality of test subjects and for a plurality of text passages. In an exemplary embodiment, the plurality of students can be at least 20 students. After the plurality of test subjects have perform steps 204-210, if a significant number, such as, for example, over 75%, of the test subjects used short-term memory to answer the question, the question is validated for the test. If, however, less than the significant number of the test subjects used short-term memory to answer the question, the test developer can make the decision that the question is invalid and discard the question as relates to the passage.
A plurality of questions can be developed for the passage using steps 204-210. After the test has been developed for the particular passage, steps 202-210 can be repeated, with a different passage being selected in step 202.
An exemplary use of system 100 is provided in the following example:
Participants and Task: 3 middle school students (age=12(mean)-males) had taken part in a preliminary study using system 100. Students performed 4 sessions using system 100 with 5 minutes to 1 hour in between sessions. In each session students were given a different passage and 10 questions to be answered related to the passage. Students and their corresponding passages in the order they have received them are given in Table 1 below.
Results:
Behavioral Outcomes (from System 100):
Two types of analyses were performed in order to show the additional capabilities of system 100 in student performance evaluation in comparison to paper and pencil test methods. First, only the gross outcomes, such as overall testing time and correct/incorrect answers, were analyzed where it could have been accessed when paper and pencil tests were used. Then, the detailed results from system 100, such as individual question response times, number of viewing the essay during the examination, etc., were analyzed to show the efficacy of the 100 in providing valuable information in addition to the gross measurements.
Table 2 below reports on the overall timing of the test and the number of correct answers (out of 10 questions) for each passage and students as shown in Table 2. Note that if there are multiple answers given for an individual question, the last answer is taken as the answer for that question.
From these overall measures, no improvement (due to practice) or deterioration (due to fatigue) is found in terms of correct answers given, although the results indicate that it appears to take more time for the students to perform the overall test in the later sessions as compared to the former ones. This increase in time in test completion is not reflected in the number of correct answers given (correlation coefficient R=0.17). Another observation here is, overall, the “tiger's Tale” passage took the least time to complete and the “Dynamic Duo” passage took the most time, which may be due to the difficulty levels of these passages. Overall, subject #20 performed the best and subject #15 performed the worst out of the three students.
Additional detailed measurements from system 100: An example use log for system 100 is given in Table 3 below. From this log, the time it took for the student to read the passage, number and timing of going back to the passage, timing of each question and the corresponding answer, response type in terms of which multiple choice is selected and if it is correct or wrong can be extracted which can provide the teacher a rich amount of information to better evaluate the student's performance.
Here, as an example for additional behavioral measure analysis using system 100 logs, individual passage reading times, total number of answers given (including multiple answers for a single question), overall additional passage viewing times during the testing, the average response times for the 10 questions together with the answer types (correct answers) and overall testing time were extracted and summarized in Table 4 below.
From these additional measures, some observations suggested that there was a negative correlation between the passage reading time and number of correct answers given (R=−0.4) and a positive correlation between passage reading time and the number of going back to the passage (R=0.45). These may mean that as the students read the passages longer (harder passages to comprehend) their number of correct answers drops and they feel the need to go back to the passage more. There was a positive correlation between the session numbers and the passage reading time (R=0.42) and overall testing time (R=0.38) which may mean that students needed more time as they took the next tests during the day that may be related with a fatigue effect. There was a negative correlation between number of correct answers given and the question response time (R=−0.54) which may mean that students answer questions correctly in shorter time.
Averages in terms of students, sessions and passages can also be obtained. Averages over students are summarized in Table 5 below. It can be seen that student #20, read the passages the quickest, visited the passages the most times, answered the questions in shortest time and given the most number of correct answers with less number of tries as compared to the others. Subject #15 took the longest time to read the passages, visited the passages in intermediate levels, took the most time to answer the questions and tried several times to provide an answer, though had given the less number of correct answers on the average.
If averages in terms of sessions (1 through 4) are carried out the detailed results of system 100 provide more correlations on certain fields. Table 6 summarizes the subject averaged measures of system 100 in terms of sessions. With this grouping, the correlation between the number of correct answers given and the average response time becomes R=−0.80.
If averages in terms of passages are carried out to eliminate the effects of difficulty levels of passages are carried out, the results become as given in Table 7. With this grouping, between the number of correct answers given and the average response time becomes R=−0.88.
These preliminary analyses on the behavioral outcomes as measured by system 100 are carried out to provide examples on how system 100 can be used to obtain more detailed and elaborate evaluation of student performances on reading comprehension tests. Each individual student can be evaluated on certain measures within themselves over various testing time points or across each other at a given time point or over time in terms of improvement/decline. Additional analysis can also be carried out at various grade levels. All the detailed information that system 100 provides in terms of passage viewing, number of answers given, timings of answers and so forth provide previously unattainable information by the use of paper and pencil tests.
Brain-based measures from fNIR spectroscopy were recorded in the following manner. Raw intensity measurements at 730 and 850 nm wavelengths are first filtered with a finite impulse response (FIR) filter to eliminate heart pulsation, respiration and high frequency noise signals. Then using the modified Beer-Lambert law, raw intensity measurements are converted into changes in Oxy-Hb and Deoxy-Hb relative to the 10 sec baseline period collected at the beginning of the measurement.
Using the timings of recordings by system 100, data epochs from the questions asked response given is extracted for each student, passage, channel, hemodynamic variables (Oxy- and Deoxy-Hb) and question. The epochs are baseline corrected (mean of pre epoch region is subtracted from the epoch) to eliminate the effects of pre-epoch activities from the epoch region itself for normalization. Then maximum amplitude of each epoch of each hemodynamic variable which is a common feature used in fNIR spectroscopy studies is extracted. Since Oxy-Hb has been shown to correlate well with cognitive activity and produce comparable results to fMRI findings, in this study analysis was first focused on Oxy-Hb results.
As an initial analysis the maximum Oxy-Hb values of each of the 10 question epochs are correlated with the corresponding behavioral response times for each individual subject and test where fNIR spectroscopy measures were collected (as given in Table 2), separately. On channel 3 (middle frontal area on the right hemisphere, which corresponds to attentional domains as found out in previous fNIR spectroscopy and fMRI studies), high correlation values were found, as summarized in Table 8 below. In
Average values of maximum Oxy-Hb were calculated in all questions for each subject and passage where there is fNIR spectroscopy recording. These values are summarized in Table 9 below.
It was found that there were positive correlation between the Oxy-Hb values and overall testing time (R=0.67), number of times the passage has been viewed (R=0.79) and the average response time (R=0.89). These results mean that as it takes for certain subjects more time to complete the test and they need more revisiting the passage, they have to put more effort in it and hence their response times and the corresponding Oxy-Hb values increase.
The correct and incorrect responses were separated and calculated the average maximum Oxy-Hb and response times for each subject and passage as summarized in Table 10 below. Similar information is also given in
All cases had more correct answers than incorrect ones. On the average, incorrect answers took more time to respond and more Oxy-Hb. Individually also, incorrect answers took in general more time to answer and more Oxy-Hb. Only in subject 20, passage “tiger's Tale” did it take less time for incorrect answers, but in this case, it corresponded to less Oxy-Hb in incorrect answers as compared to the correct ones.
This example only used readers of native English speaker within the same grade level and compared their behavioral results based on system 100 with their brain measures. Those skilled in the art, however, will recognize that system 100 can be used with individuals with specific learning disabilities in reading, individuals of different age and grade groups, individuals where English is a second language and compare their outcomes using system 100 within and across groups together with their brain measures.
It is expected that system 100 will be able to provide the following information that can be used to inform instruction. Such information can include:
1. How long it took the student to read the passage through to the first question.
2. How long it took the student to answer each question.
3. If the student referred back to the passage while answering a question.
4. If the student got the answer correct or incorrect.
5. Which answer the student chose and why it was the wrong answer (heuristic).
6. Total percentage of answers correct.
7. Types of wrong answers and how many of each.
8. A graph with the data, Lexile® level and score for the student for the school year.
9. How long the entire passage with questions took to read and answer.
10. A warning when a student has not shown progress for three sessions in a row.
11. A star signal when student has read three passages at that grade Lexile® level with 75% or more accuracy—which is a signal for the teacher to move the student to the next level.
12. A class roster with student names highlighted in colors such as: green (on target); yellow (just below target); and red (well below target) for graded Lexile level.
13. Strategies for working with students depending on the type of wrong answers selected by the students.
14. Ability for student to read orally into an iPad to enable the teacher to hear reading fluency of the students.
15. Ability for an iPad to read passage to a student who may have difficulty decoding and teacher wants to check listening comprehension.
It will be further understood that various changes in the details, materials, and arrangements of the parts which have been described and illustrated in order to explain the nature of this invention may be made by those skilled in the art without departing from the scope of the invention as expressed in the following claims.
The present application claims priority from U.S. Provisional Patent Application Ser. No. 62/065,139, filed on Oct. 17, 2014, which is incorporated by reference herein in its entirety.
| Number | Date | Country | |
|---|---|---|---|
| 62065139 | Oct 2014 | US |
