Akomodācijas viegluma novērtēšana ar standarta un datorizētu metodi
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Latvijas Universitāte
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Abstract
Maģistra darbs ir uzrakstīts latviešu valodā uz 42 lappusēm. Tas satur 12 attēlus, 8 tabulas un 29 atsauces uz izmantoto literatūru.
Darba mērķis: novērtēt mērķa teksta blīvuma ietekmi uz nomērīto akomodācijas vieglumu. Izveidot jaunu datorizētu akomodācijas viegluma testu, salīdzināt to ar standarta metodi.
Metode: akomodācijas viegluma novērtēšanai tiek izmantota standarta ±2,0 D lēcu metode 40 cm attālumā un jaunizveidotā datorizētā metode.
Subjekti: eksperimenta pirmajā daļā piedalījās 4 dalībnieces vecumā no 20 līdz 21 gadam, otrajā daļā - 242 skolēni vecumā no 7 līdz 18 gadiem.
Rezultāti: eksperimenta pirmajā daļā novērojama tendence – pie blīvāka teksta tiek nomērīts mazāks ciklu skaits minūtē. Datorizētā testa jutība ir 86,89%, bet specifika 13,11%. Izmantojot kļūdu kontroles mehānismu, testa jutība paaugstinās par 5%.
Master Thesis is written in Latvian on 42 pages. It contains 12 pictures, 8 tables and there are 29 references to literature. Aim: to investigate the influence of letters density on measured accommodative facility and approbate new computerized accommodative facility test, compare these test results with standard tests results. Method: for measurements of accommodative facility the standard ±2,0 D lense in 40 cm distance and new computerised method are used. Subjects: in the first part of experiment - 4 subjects, age 20 to 21 years. In the second part - 242 students, age 7 to 18 years. Results: for closer spaced letters accommodative facility decreases. Sensitivity of computerized test is 86,89% but specificity is 13,11%. Usage of error control mechanism rises the test sensitivity for 5%.
Master Thesis is written in Latvian on 42 pages. It contains 12 pictures, 8 tables and there are 29 references to literature. Aim: to investigate the influence of letters density on measured accommodative facility and approbate new computerized accommodative facility test, compare these test results with standard tests results. Method: for measurements of accommodative facility the standard ±2,0 D lense in 40 cm distance and new computerised method are used. Subjects: in the first part of experiment - 4 subjects, age 20 to 21 years. In the second part - 242 students, age 7 to 18 years. Results: for closer spaced letters accommodative facility decreases. Sensitivity of computerized test is 86,89% but specificity is 13,11%. Usage of error control mechanism rises the test sensitivity for 5%.