Pre-assessment or diagnostic assessment
Before creating the instruction, it’s necessary to know for what kind of students you’re creating the instruction. Your goal is to get to know your student’s strengths, weaknesses and the skills and knowledge the posses before taking the instruction. Based on the data you’ve collected, you can create your instruction.
Formative assessment is used in the first attempt of developing instruction. The goal is to monitor student learning to provide feedback. It helps identifying the first gaps in your instruction. Based on this feedback you’ll know what to focus on for further expansion for your instruction.
Summative assessment is aimed at assessing the extent to which the most important outcomes at the end of the instruction have been reached. But it measures more: the effectiveness of learning, reactions on the instruction and the benefits on a long-term base. The long-term benefits can be determined by following students who attend your course, or test. You are able to see whether and how they use the learned knowledge, skills and attitudes.
Read more about formative and summative assessments.
When your instruction has been implemented in your classroom, it’s still necessary to take assessment. Your goal with confirmative assessments is to find out if the instruction is still a success after a year, for example, and if the way you're teaching is still on point. You could say that a confirmative assessment is an extensive form of a summative assessment.
This compares a student’s performance against an average norm. This could be the average national norm for the subject History, for example. Other example is when the teacher compares the average grade of his or her students against the average grade of the entire school.
It measures student’s performances against a fixed set of predetermined criteria or learning standards. It checks what students are expected to know and be able to do at a specific stage of their education. Criterion-referenced tests are used to evaluate a specific body of knowledge or skill set, it’s a test to evaluate the curriculum taught in a course.
It measures the performance of a student against previous performances from that student. With this method you’re trying to improve yourself by comparing previous results. You’re not comparing yourself against other students, which may be not so good for your self-confidence.