| Introduction |
7 |
| 1.
Preliminaries and problems |
11 |
| 1.1
The concept of combinativity in psychology |
11 |
| 1.2
The Piaget school |
14 |
| 1.3
Examinations relating to combinative operations |
20 |
| 1.4
Problems of combinative type in some Hungarian educational psychological
research |
22 |
| 2.
Theoretical background |
25 |
| 2.1
General conception of combinative ability |
25 |
| 2.2
Hypothetical system of combinative ability |
29 |
| 3.
Instruments of the examinations |
35 |
| 3.1
Basic principles of test development |
35 |
| 3.2
Manipulative tasks |
40 |
| 3.3
Figural tasks |
41 |
| 3.4
Formal tasks |
42 |
| 3.5
Reliability and validity of tests |
43 |
| 4.
Empirical research |
49 |
| 4.1
Administration of tests and data sheets |
49 |
| 4.2
Data processing |
53 |
| 5.
Manipulative content |
59 |
| 5.1
Achievements in manipulative tasks |
59 |
| 5.2
Developmental processes in manipulative tasks |
63 |
| 5.3
Results in manipulative subtests |
68 |
| 5.4
Examination of relationships of manipulative achievements |
69 |
| 5.5
Summary of manipulative achievements |
79 |
| 6.
Figural content |
83 |
| 6.1
Achievements in figural tasks |
83 |
| 6.2
Developmental processes in figural tasks |
87 |
| 6.3
Results in figural subtests |
91 |
| 6.4
Examination of relationships of figural achievements |
94 |
| 6.5
Summary of figural achievements |
100 |
| 7.
Formal content |
103 |
| 7.1
Achievements in formal tasks |
103 |
| 7.2
Developmental processes in formal tasks |
107 |
| 7.3
Results in formal subtests |
111 |
| 7.4
Examination of relationships of formal achievements |
114 |
| 7.5
Summary of formal achievements |
120 |
| 8.
Combinative operational ability as a whole |
123 |
| 8.1
Structure of operational ability |
132 |
| 8.2
Development of combinative ability |
132 |
| 8.3
Interaction between content and structure |
126 |
| 9.
Factors influencing the development of combinative ability |
149 |
| 9.1
Possibilities of statistical analysis of factors influencing development |
149 |
| 9.2
Systematizing and logical ability |
149 |
| 9.3
School achievements and social background |
150 |
| 9.4
Total impact of independent variables |
154 |
| References |
161 |
| List
of figures |
169 |
| List
of tables |
170 |
| List
of abbreviations |
171 |
| Appendix |
173 |
| Manipulative
tests |
174 |
| Figural
tests |
183 |
| Formal
tests |
196 |