EASY can be searched via a general free-text search. It searches in the metadata of all published datasets, but it does not extend into the contents of the uploaded files in datasets. Please use English as well as Dutch words for optimal search results.
A result list shows datasets that match the chosen criteria, mentioned in the 'Criteria' at the top of the list. Criteria may be removed individually using the 'x' mark beside them. Sort options are also available; clicking toggles the sort order (ascending/descending). On most result lists, refine options are available (at the right-hand side). Use those options to filter within the list (e.g. search within the result list). For more about refining and the meaning of the values of the field 'Access', refer to the help on refine (use the '?' mark next to 'Refine').
To search specific fields (and/or any field), use the 'Advanced search' link. To get a list of all published datasets, start with the 'Browse' link.
Please enter one or more terms in the search box. All terms occur in the document. For example: archaeological predictive modelling.
Use English and Dutch terms For example: Enter human rights, but also mensenrechten. Hence: enter human rights or mensenrechten.
Quotation marks can be used to find word combinations. For example: enter “health care”. and you will find records where the words ‘health’ and ‘care' are adjacent.
You can search on terms that are specified only partially by using an asterisk: * For example: econom* also provides records about economical, economics, economic, economy et cetera
You can use question marks: ? as a subsitute for any letter. For example: sh?p provides all records featuring 'ship' or 'shop'; ship???? provides all records where 'ship' is followed by four letters (i.e. 'shipping', 'shipment'); ship????? provides all records where ship is followed by five letters (i.e. 'shipwreck', 'shipments').
Boolean searching in search box
Search terms can be combined using ‘AND’,‘OR’ and ‘NOT’.
‘AND’: both terms should occur, but the order is not important.
‘OR’: one of either the terms or both terms should occur (e.g. with synonyms or words in different languages), the order is not important.
‘NOT’: the first term should occur and the second not.
youth AND child: Records contain both 'youth' and 'child'.
youth OR child: Records contain either 'youth' or 'child' or both.
(youth OR child) AND language: Records contain either 'youth' or 'child' or both, and also 'language'.
youth NOT language: Records contain 'youth' and not 'language'
+youth -criminal: Records contain 'youth' and do not contain 'criminal'
Research instituut voor de toegepaste psychologie * Amsterdam (data collector)
1971-01-01 to 1978-12-31
The Innovation Project Amsterdam ( IPA ) was a large scale educational project. The longitudinal project, which lasted from 1971 until 1978, was realised as a cooperation between Amsterdam primary schools, the Advice and Guidance Centre for Education in Amsterdam ( ABC ) and the Research Institute for Applied Psychology of the University of Amsterdam. It's aim was to improve the educational facilities for working-class children in the old districts of Amsterdam, by establishing - among other things - close relationships between school, family and neighbourhood. Based on then popular principles of action-research, the research staff of the project was strongly involved with the actual changes in the field. The project started with some 15 schools and covered some 40 during it's existence. The project yielded many hundreds of raw data-files, some on punched cards and some on magnetic tape. Most of these files contained the results of educational tests and were poorly documented when transferred to the Steinmetz archive. The amount of material and the state it was in, left the archive no other choice than to "keep as is", which in turn has led to serious losses over time, due to deterioration of tapes and cards.