Linear Test vs Adaptive Test

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Linear Test vs Adaptive Test:

 Linear Test is a test where all the questions that a student will get is pre-determined and they might get it in the same order or it could be randomized. The student is free to skip a question, move back and forth anytime and change their answer options. Example: All the tests available in PlacementSeason.Com is of Liner type. 95% of the recruitment tests are Linear tests.
 Adaptive test is a test where the next question a student gets depends on the correctness question he is attempting. The questions cannot be skipped, ie) a question has to be attempted only then the student will get the next question and he cannot go back to the previous question or change the answer. If the question answered is correct then the next question will be of higher difficulty level, higher weightage and if the question answered is wrong then the next question will be of lower difficulty level, lesser weightage.
 Scenario 1:

 Take for example if a student 1 gets a 1 mark question and he answers right then the next question he gets will be 2 mark question and he gets wrong then the next question will be of 1 mark question and it goes on as given in the below table:

 

Question NumberWeightageAttempt StatusMarks Scored
11Correct1
22Wrong0
31Correct1
42Wrong0
51Correct1
62Wrong0
71Correct1
82Wrong0
91Correct1
102Wrong0
111Correct1
122Wrong0
131Correct1
142Wrong0
151Correct1
162Wrong0
171Correct1
182Wrong0
191Correct1
202Wrong0

Total Questions Correct – 10

Total Marks Scored – 10

 

 Scenario 2:

 If a student 2 attempts the same test and he answers first question correct the the next question he gets will be 2 mark question and if he gets that correct then the next question he gets will be 3 mark question and if he gets this question correct then the next question will be 4 mark question and it goes on as per the below table
 

Question NumberWeightageAttempt StatusMarks Scored
11Correct1
22Correct2
33Correct3
44Correct4
55Correct5
66Wrong0
75Wrong0
84Wrong0
93Wrong0
102Wrong0
111Correct1
122Correct2
133Correct3
144Correct4
155Correct5
166Wrong0
175Wrong0
186Wrong0
193Wrong0
202Wrong0

Total Questions Correct – 10

Total Marks Scored – 30

 

 Scenario 3:

 If the student’s attempts was like mentioned in below table

 

Question NumberWeightageAttempt StatusMarks Scored
11Correct1
22Correct2
33Correct3
44Correct4
55Correct5
66Correct6
77Correct7
88Correct8
99Correct9
1010Correct10
1111Wrong0
1210Wrong0
139Wrong0
148Wrong0
157Wrong0
166Wrong0
175Wrong0
184Wrong0
193Wrong0
202Wrong0

 Total Questions Correct – 10

Total Marks Scored – 55

 

Suggested Strategy:

If you look at all 3 scenarios you can clearly see that all 3 students have got 10 questions correct but the first student got only 10 marks and the second student got 30 marks and the third student got 55 marks, thus what is important in an adaptive test is to get more question correct in sequence rather than getting alternate questions correct.The main disadvantage in these kind of tests is that you cannot skip any question and for that you need to be prepared in all the topics.Because getting the right answers here and there will not get you the desired cut off.

 If you get first 7 to 9 questions correct your score will always be above the required cut-off.

 Right now almost all the companies are conducting Linear tests only.But in future we can expect the companies to shift to the Adaptive test for testing the candidates better.

 

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