Placement evaluation, also referred to as pre-assessment or initial assessment, is conducted prior to instruction or intervention to establish a baseline from which individual student growth can be measured. This type of an assessment is used to know what the student’s skill level is about the subject. It helps the teacher to explain the material more efficiently. These assessment are not graded.
Formative assessment is generally carried out throughout a course or project. Formative assessment, also referred to as “educative assessment” is used to aid learning. In an educational setting, formative assessment might be a teacher (or peer) or the learner, providing feedback on a student’s work and would not necessarily be used for grading purposes.
Summative assessment is generally carried out at the end of a course or project. In an educational setting, summative assessments are typically used to assign students a course grade. Summative assessments are evaluative. Summative assessments are mande to summarize what the students have learned, to determine whether they understand the subject matter well.
Diagnostic assessment deals with the whole difficulties at the end that occurs during the learning process.