Instrumento tinkamumo matuoti mokytojų nuomonę apie vizualizacijos naudą įvertinimas

LTReikšminiai žodžiai: Instrumentas; Vizualizacija; Validumas; Validity; Visualization; Instrument.

ENVisualization is essential in science education processes. It is important to know – whether it is useful according to teachers' view. Aiming to find out this goal, we need to have valid instrument. There is analysed internal consistency of created instrument which diagnoses teachers' opinion about benefit of visualization in education process. Also, there are represented possibilities of instrument to state statistically significant differences between populations in grouped and single data level. The instrument for respondents is clear. Internal consistency of it is high; it is valid to measure teachers' population opinion about benefit of visualization in education process (usefulness for student's motivation, perception, attention, memory and imagination of abstract concepts). Instrument, also, is valid to measure statistically significant differences of opinion of biologists, chemists, physicians, geographers and mathematicians according to generalized of single categorical indicators.Also, it is possible to state by this instrument homogeneity and heterogeneity of teachers' opinion. The most homogeneous opinions were identified evaluating the benefit of visualization for student's perception. This enclose, that mostly all teachers in the population agree with idea that visualization is useful to stimulate students' perception during lessons. Especially it is useful in biology and physics. Teachers differently agree that visualization is useful to stimulate students' motivation to learn additionally and to inspire desire to have more lessons, to repeat information and to do their homework. Analogically, variety of opinions was stated in self learning scale, which enclosed that teachers not absolutely agree that visualization stimulates students' wish to look for views connected with science in the internet. [From the publication]