Discriminability is generally defined as the ability to distinguish between one stimulus and another. In the Recognition-by-components theory of object perception, Discriminability is a property of geons , which indicates that each geon can be distinguished from other geons from almost all viewpoints. In item analysis , Discriminability is how well an item performs in relation to some criterion. For example, items may be compared according to how well they separate groups who score high and low on the test . The index of discrimination would then be the correlation between performance on an item and performance on the whole test.
Related Articles | |
| Accidental viewpoint at psychology-glossary.com | ■■■■■ |
Accidental viewpoint refers to a viewpoint relative to an object that results in perception of an accidental . . . Read More | |
| Concrete operations at psychology-glossary.com | ■■■■ |
Concrete operations refers to the third stage in Piaget’s theory of cognitive development applying . . . Read More | |
| Inverse projection problem at psychology-glossary.com | ■■■■ |
Inverse projection problem is the idea that a particular image on the retina could have been caused by . . . Read More | |
| Geons at psychology-glossary.com | ■■■■ |
Geons (geometric icons) refer to the volumetric features of Biederman"s recognition-by-components Theory . . . Read More | |
| Item analysis at psychology-glossary.com | ■■■ |
Item analysis refers to an assessment of whether each of the items included in a composite measure makes . . . Read More | |
| Fleishman Job Analysis Survey at psychology-glossary.com | ■■■ |
Fleishman Job Analysis Survey refers to a job analysis method in which jobs are rated on the basis of . . . Read More | |
| Construct validity at psychology-glossary.com | ■■■ |
Construct validity: Construct validity refers to the test which is demonstrated to be a measure of a . . . Read More | |
| Agnosia at psychology-glossary.com | ■■■ |
Agnosia refers to the inability to identify objects, inability to organise sensory information so as . . . Read More | |
| Depth Perception at psychology-glossary.com | ■■■ |
Depth Perception refers to the ability to understand the relationship among objects in space. - Human . . . Read More | |
| Size Constancy at psychology-glossary.com | ■■■ |
Size Constancy when objects are perceived to have a given size regardless of the size of the retinal . . . Read More | |