Educational Measurement

Educational measurement refers to the use of educational assessments and the analysis of such data such as scores obtained from educational tests to infer the abilities and proficiencies of students. The approaches overlap with those in psychometrics. Educational measurement is the assigning of numerals to traits such as achievement, interest, attitudes, aptitudes, intelligence, and performance.

The aim of theory and practice in educational measurement is typically to measure abilities and levels of attainment by students in areas such as reading, writing, science, mathematics and so forth. Traditionally, attention focuses on whether assessments are reliable and valid. In practice, educational assessment is largely concerned with the analysis of data from educational assessments or tests. Typically, this means using total scores in assessments, whether they are multiple choice or open-ended and marked using marking rubics or guides.

In technical terms, the pattern of scores by individual students to individual items is used to infer so-called scale location of students, i.e. the "measurements." This process is one way of scaling. Essentially, higher total scores give higher scale locations, consistent with the traditional and everyday use of total scores. If certain throry is used, though, there is not a strict correspondence between the ordering of total scores and the ordering of scale locations. The Rasch model provides a strict correspondence provided all students attempt the same test items, or their performances are marked using the same marking rubics.

In terms of the broad body of purely mathematical theory drawn on, there is substantial overlap between educational measurement and psychometrics. However, certain approaches considered to be a part of psychometrics, including Classical Test Theory, Items Response Theory, and the Rasch Model, were originally developed more specifically for the analysis of data from educational assessments.

One of the aims of applying theory and techniques in educational neasurement is to try to place the results of different tests administered to different groups of students on a single or common scales through processes known as test equating. The rationale is that because different assessments usually have different difficulties, the total scores cannot be directly compared. The aim of trying to compare results on a common scale is to allow comparison of scale locations inferred from the totals via scaling processes.

x------------x

Picture from Pexels.

Comments

Upclose and Personal: Satan

Satan, also known as the Devil, is an entity in the Abrahamic religions that seduces humans into sin or falsehood. In Christianity and Islam, he is usually seen as either a fallen angel or a genie, who used to possess great piety and beauty, but rebelled against God, who nevertheless allows him temporary power over the fallen world and a host of demons. In Judaism, Satan is typically regarded as a metaphor for the yetzer hara or "evil inclination", or as an agent subservient to God. A figure known as "the satan" first appears in the Tanakh as a heavenly prosecutor, a member of the sons of God subordinate to Yahweh, who prosecutes the nation of Judah in the heavenly court and tests the loyalty of Yahweh's followers by forcing them to suffer. During the intertestamental period, possibly due to influence from the Zoroastrian figure of Angra Mainyu, the satan developed into a malevolent entity with abhorrent qualities in dualistic opposition to God. In the apocrypha...

Crusades

The Crusades were a series of religious wars initiated, supported, and sometimes directed by the Christian Latin Church in the medieval period. The best known of these military expeditions are those to the Holy Land in the period between 1095 and 1291 that were intended to conquer Jerusalem and its surrounding areas from Muslim rule. Beginning with the First Crusade, which resulted in the conquest of Jerusalem in 1099, dozens of military campaigns were organized, providing a focal point of European history for centuries. Crusading declined rapidly after the 15th century. In 1095, Pope Urban II proclaimed the first expedition at the Council of Clermont. He encouraged military support for Byzantine emperor Alexios I Komnenos and called for an armed pilgrimage to Jerusalem. Across all social strata in western Europe there was an enthusiastic response. Participants came from all over Europe and had a variety of motivations, including religious salvation, satisfying feudal obligations,...

Abnormal Psychology

Abnormal psychology is the branch of psychology that studies unusual patterns of behavior, emotion, and thought, which may or may not be understood as precipitating a mental disorder. Although many behaviors could be considered as abnormal, this branch of psychology typically deals with behavior in a clinical context. There is a long history of attempts to understand and control behavior deemed to be aberrant or deviant (statistically, functionally, morally or in some other sense), and there is often cultural variation in the approach taken. The field of abnormal psychology identifies multiple causes for different conditions, employing diverse theories from the general field of psychology and elsewhere, and much still hinges on what exactly is meant by "abnormal." There has traditionally been a divide between psychological and biological explanations, reflecting philosophical dualism in regard to the mind-body problem. There have also been different approaches in trying to ...

Search This Blog