Computer+Adaptive+Test

Computer Adaptive Testing (CAT) Wiki By Angela Head Computer Adaptive Testing is basically computer testing that adapts to the examinee’s ability level. The basic operation of a Computer Adaptive Test functions on an iterative algorithm. The Iterative Algorithm is a crucial component of Computer Adaptive Testing. According to Wikipedia, “ Iteration in mathematics may refer to the process of [|iterating a function] i.e. applying a function repeatedly, using the output from one iteration as the input to the next.” Wikipedia So, in other words this means that the computer test will use the answer to one question (right or wrong) to determine what question the test-taker will be asked next. Steps of Computer Adaptive Testing: “ 1.The pool of available items is searched for the optimal item, based on the current estimate of the examinee's [|ability] 2. The chosen item is presented to the examinee, who then answers it correctly or incorrectly 3. The ability estimate is updated, based upon all prior answers 4. Steps 1–3 are repeated until a termination criterion is met ” There are many advantages of using Computer Adaptive Testing. Some of these advantages in clued that CAT’s are more precise scores for **most** test takers. Additionally, CAT’s can be shortened significantly and still hold a high level of precision. CAT’s provide **immediate results!** Some people argue that the test challenges each student in his or her “zone of proximal development”. These tests can be very helpful in keeping track of student “progress”. While there are many advantages to CAT’s, there are also disadvantages. One disadvantage is that these tests require extensive pre-administration work and preparation. Pilot-testing requires that a CAT be given to a group of over 1,000 just as the preparation for creating the test. There are issues with test reliability with CAT’s since some test takers might figure out different ways to manipulate the test. Additionally CAT’s do not provide test takers with a chance to review their work. Resources [] []
 * THE STEPS OF COMPUTER ADAPTIVE TESTING as found here:**
 * http://en.wikipedia.org/wiki/Computer_adaptive_testing**
 * Advantages**
 * Disadvantages**