Testing and evaluation

 

Hello friends, 

This blog is part of my academic blog activity. In which I am going to Write about the Testing and evaluation.

👉 Write on practicality of the test :-

It refers to the economy of time, effort and money in testing. In other words, a test should be easy 

✍️ to design, easy

✍️ to administer,

✍️ easy to mark, and easy to interpret the results.

        Brown (2004) said that the test that is practical needs to be within the means of financial limitations, appropriate time constraints, easy to administrator, score, and interpret.

👉 Write on Validity and reliability of the test :--

            Validity is the most important issue in selecting a test. Validity refers to what characteristic the test measures and how well the test measures that characteristic. Validity tells you if the characteristic being measured by a test is related to job qualifications and requirements.

            Validity gives meaning to the test scores. Validity evidence indicates that there is linkage between test performance and job performance. It can tell you what you may conclude or predict about someone from his or her score on the test. If a test has been demonstrated to be a valid predictor of performance on a specific job, you can conclude that persons scoring high on the test are more likely to perform well on the job than persons who score low on the test, all else being equal.

             Validity also describes the degree to which you can make specific conclusions or predictions about people based on their test scores. In other words, it indicates the usefulness of the test.

What makes a good test?

By using the test, more effective employment decisions can be made about individuals. The test is job-relevant. In other words, the test measures one or more characteristics that are important to the job.

        Reliability refers to how dependably or consistently a test measures a characteristic.

           If a person takes the test again, will he or she get a similar test score, or a much different score? A test that yields similar scores for a person who repeats the test is said to measure a characteristic reliably.

           How do we account for an individual who does not get exactly the same test score every time he or she takes the test?

Test taker's temporary psychological or physical state:- Test performance can be influenced by a person's psychological or physical state at the time of testing. For example, differing levels of anxiety, fatigue, or motivation may affect the applicant's test results.

Environmental factors:- Differences in the testing environment, such as room temperature, lighting, noise, or even the test administrator, can influence an individual's test performance.

Test form:- Many tests have more than one version or form. Items differ on each form, but each form is supposed to measure the same thing. Different forms of a test are known as parallel forms or alternate forms. These forms are designed to have similar measurement characteristics, but they contain different items. Because the forms are not exactly the same, a test taker might do better on one form than on another.

Multiple raters :- In certain tests, scoring is determined by a rater's judgments of the test taker's performance or responses. Differences in training, experience, and frame of reference among raters can produce different test scores for the test taker.

👉 What do we understand by backwash ?

              So let's see what is the backwash in the test. The washback effect is the outcome of a test or an examination which results either in positive or in a negative way. There are two basic terms of the Washback effect, which are the 

Positive and the Negative washback effect. 

Positive washback occurs when there is harmony between the teaching and the students' examination or a class test performance. The backwash effect also known as the washback effect. The backwash is the influence that a test has on the way students are taught.

👉 What is the difference between assessment and evaluation :-

           The English language is full of words whose meanings are so close to each other that people get confused with their usage. Similarly, there is a pair of words assessment and evaluation, whose meaning is quite close yet different from each other.

       The word “assess” is derived from the Medieval Latin word “assessee” whose meaning is “fix a tax upon.” Therefore, assessment can be defined as the process of collecting information about something or somebody from different sources to get the idea of the knowledge or skills or quality possessed by it.

There are three types of assessment : 

1 Summative assessment:

2 Formative assessment:

3 Alternative Assessment:

          Now let's talk about what is an evaluation.

          The meaning of the word “evaluate” is to make a judgment about something or someone to learn about their abilities or skills or qualities.

The evaluation process is conducted to compare the skills and qualities of two or more individuals. The person being evaluated must fulfill the criteria set by the evaluator. Unlike assessment, the result does not provide constructive feedback, but it passes the judgment.

However, evaluation and assessment are both used to review the performance of an individual. But these two terms are used in a completely different context.

The assessment is done to provide constructive feedback and the motive behind assessment to improve, whereas, evaluation is done to judge

the ability of an individual or system to pass judgment.

Thank you….