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techniques of an estimation of a maturity of conceptual structures of chemistry and indicators of special chemical abilities

For an estimation of a maturity of conceptual structures of chemistry and indicators of special chemical abilities have been developed by us of a technique, the theoretical and which empirical substantiation is in more details presented in works (Volkova, 2002, 2005, 2008):

1.
The technique źChemical differentiations╗ (a differentiation – distinction of close signals and a choice of the only thing of the answer approaching to a signal) is intended for a maturity estimation kontsepta "substance". The examinee receives consistently some packs of cards with images of chemical formulas which displays as soon as possible on groups according to defined, set in the preliminary verbal instruction, to signs.

1. A simple differentiation – global level of hierarchy kontsepta "substance" (patrimonial signs) – classification of images of simple and difficult substances.

2. A difficult differentiation – base level kontsepta "substance" (specific signs) classification of images of substances by an accessory to a certain class of bonds (oksidy, acids, salts, the bases).

3. The most complicated differentiation (źa chemical patience╗) – the detailed level – more difficult classification of classes of bonds. Formulas of substances stole up so that examinees could not take advantage of rules known for it.

2. The test źGreatСhemist╗ is constructed on the same methodological bases, as the previous technique, but covers a wide range of the base conceptual relations making a basis of modern chemistry. The given test allows to estimate adequacy, a maturity, the form of orderliness and rate (on number of the assays necessary for faultless performance of the task) of formation of conceptual structures of chemistry. The test includes 13 subtests, in each subtest two assays on 42 stimulus (tasks for classification, identity-difference establishments, revealing of relationships of cause and effect, likelihood estimation, other).

It is offered as soon as possible and to part to the examinee more precisely appearing on the screen in a casual order stimulus on groups (2, 3, 4, 14). The number of errors, time of differentiations is considered. Results of testing are presented in two scales: a "knowledge" scale (1-5 points; 5 points – 95 % of right answers); the "ability" scale – an estimation of ability of examinees to allocate essential invarianty a chemical reality in various disputed stimulnom a material at identical level of knowledge. The test is standardised on sample more than 1000 persons, has the quality certificate.

3. A chemical dictation? Ability of conservation in a long-term memory of semiotics system of chemical tongue is estimated.

4. Chemical memory. For the analysis of dependence of volume of short-term memory from features of a semantic material at acoustical storing 4 groups of words have been prepared: And – ordinary words (a pencil, a pear.); In – pattern of a locating of elements in groups, With – periodic pattern of a locating of elements, D – elements of different groups and the periods.

5. Chemical coding – the modified variant of the subtest "coding" of the test of intelligence of D.Vexler: sheet And – any order of elements; sheets In, With – group sequence of elements; sheet D – periodic sequence of elements.

6. A technique direct shkalirovanija components of the general and special abilities "MIKOSS". Examinees were offered to estimate an actual and desirable level of development of the general abilities (memory, intuition, thinking, language abilities, skilful arms, mathematical abilities, abilities to solve a problem on the physicist) and special chemical abilities (a chemical orientation of mind, chemical memory, chemical intuition, chemical tongue, chemical thinking, experimental abilities, abilities to carry out chemical calculations, the general chemical abilities).

Techniques of other authors were besides, used:

7. A technique of an estimation of interest to chemistry: level of interest to chemistry was defined on a rank of interest to a subject in comparison with 24 fields of activity presented in a technique źthe Card of interests╗ A.E.Golomshtoka and by technique MIKOSS. Indicators of level of interest by two techniques correlate among themselves (r=0,407 ***, 278 foreheads).

8. R.A.Lidina and L.L.Andreevoj's test (1994) źthe Basic concepts of chemistry╗ consists of 70 theoretical and settlement tasks with an answer choice.

9. As an indicator of success of development of chemistry the mean score on disciplines of a chemical cycle was counted up.
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A source: Volkova E.V.. Development of mental structures as bases of special abilities. 2011

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