Not all valid method of assessments are reliable and vice versa.
An effective assessment should be both Valid and Reliable.

See illustration below for sample scenarios
 
Assessment




Validity








Reliability

 






Formative
Assessment










Summative
Assessment








Formal Assessment








Informal Assessment






Traditional
Assessment





Alternative Assessment







Norm-referenced Test




Criterion-referenced Test



Self-reference test

Assessment is the process by which educators determine the level of students' learning.


¨        1an indication of how well an assessment actually measures what it is supposed to measure

¨        Validity is achieved if the assessment given to students could determine if they acquired the specific objectives of the course


¨         1an indication of the consistency of scores across evaluators or over time

¨         2Reliability is a necessary but not sufficient condition for validity

¨         There is consistency in the results of the assessment over time


¨         3or diagnostic testing is a range of formal and informal assessment procedures employed by teachers during the learning process in order to modify teaching and learning activities to improve student attainment

¨         The teacher gives feedbacks after tests/assessments during the course


¨         4(or summative evaluation) refers to the assessment of the learning and summarizes the development of learners at a particular time.

¨         measures what students learned by the end of a program or grade level; ex. Final exams, board exams


¨         5also known as standardized assessments, measure overall student achievement as compared to other students

¨         Data-driven assessments

¨         Examples: Scholastic aptitude tests


¨         5Informal assessments, also known as criterion-referenced measures or performance-based measures, are driven by content and performance, rather than data

¨         Examples: homeworks, essays

¨         6students choose a response from a given list

¨         Examples: matching type, multiple choice tests, true or false


¨         6Alternative assessment is any type of assessment in which students create a response to a question or task

¨         Performance based

¨         Examples: essays, portfolios, short oral Q & A’s


¨         7identifies whether the test taker performed better or worse than other test takers

¨         Examinee vs. other examinees


¨         8test score identifies the relationship to the subject matter

¨         Examinee vs. the subject


¨         9the practice of assessing present performance against the prior performance of the person being assessed

¨         Also known as Ipsative Assessment

¨         Examinee vs. previous self


 
Picture
Which country has the best drivers?

I’m not sure but I think the answer to this simple question could be rooted on the method of assessment that an aspiring driver has to go through to get a license. 

I know a country that allows some people to just take a written test to get a license without actually driving a vehicle.

What type of drivers do you think do they have?

How a driver gets a license could determine what kind of drivers will be found on the streets.

Here is where ASSESSMENT comes in...