Minithema: Veldexperimenten voor Beleid

U bent hier

U bent hier: TPEdigitaal » Archief » 2015 jaargang 9 (3)

Foutmelding

  • Deprecated function: Constant PDO::MYSQL_ATTR_USE_BUFFERED_QUERY is deprecated since 8.5, use Pdo\Mysql::ATTR_USE_BUFFERED_QUERY instead in DatabaseConnection_mysql->__construct() (line 332 of /customers/2/e/7/tpedigitaal.nl/httpd.www/includes/database/mysql/database.inc).
  • Deprecated function: Constant PDO::MYSQL_ATTR_MULTI_STATEMENTS is deprecated since 8.5, use Pdo\Mysql::ATTR_MULTI_STATEMENTS instead in DatabaseConnection_mysql->__construct() (line 344 of /customers/2/e/7/tpedigitaal.nl/httpd.www/includes/database/mysql/database.inc).
  • Deprecated function: session_set_save_handler(): Providing individual callbacks instead of an object implementing SessionHandlerInterface is deprecated in drupal_session_initialize() (line 242 of /customers/2/e/7/tpedigitaal.nl/httpd.www/includes/session.inc).
  • Deprecated function: Creation of dynamic property SelectQuery::$alterTags is deprecated in SelectQuery->addTag() (regel 982 van /customers/2/e/7/tpedigitaal.nl/httpd.www/includes/database/select.inc).
  • Deprecated function: Creation of dynamic property DatabaseCondition::$stringVersion is deprecated in DatabaseCondition->compile() (regel 1887 van /customers/2/e/7/tpedigitaal.nl/httpd.www/includes/database/query.inc).
  • Deprecated function: Creation of dynamic property DatabaseCondition::$stringVersion is deprecated in DatabaseCondition->compile() (regel 1887 van /customers/2/e/7/tpedigitaal.nl/httpd.www/includes/database/query.inc).
  • Deprecated function: Creation of dynamic property SelectQuery::$alterTags is deprecated in SelectQuery->addTag() (regel 982 van /customers/2/e/7/tpedigitaal.nl/httpd.www/includes/database/select.inc).
  • Deprecated function: Creation of dynamic property DatabaseCondition::$stringVersion is deprecated in DatabaseCondition->compile() (regel 1887 van /customers/2/e/7/tpedigitaal.nl/httpd.www/includes/database/query.inc).
  • Deprecated function: Creation of dynamic property DatabaseCondition::$stringVersion is deprecated in DatabaseCondition->compile() (regel 1887 van /customers/2/e/7/tpedigitaal.nl/httpd.www/includes/database/query.inc).
  • Deprecated function: Using null as an array offset is deprecated, use an empty string instead in _block_render_blocks() (regel 906 van /customers/2/e/7/tpedigitaal.nl/httpd.www/modules/block/block.module).
  • Deprecated function: Creation of dynamic property SelectQuery::$alterTags is deprecated in SelectQuery->addTag() (regel 982 van /customers/2/e/7/tpedigitaal.nl/httpd.www/includes/database/select.inc).
  • Deprecated function: Creation of dynamic property DatabaseCondition::$stringVersion is deprecated in DatabaseCondition->compile() (regel 1887 van /customers/2/e/7/tpedigitaal.nl/httpd.www/includes/database/query.inc).
  • Deprecated function: Creation of dynamic property DatabaseCondition::$stringVersion is deprecated in DatabaseCondition->compile() (regel 1887 van /customers/2/e/7/tpedigitaal.nl/httpd.www/includes/database/query.inc).
  • Deprecated function: Using null as an array offset is deprecated, use an empty string instead in _block_render_blocks() (regel 906 van /customers/2/e/7/tpedigitaal.nl/httpd.www/modules/block/block.module).
  • Deprecated function: Using null as an array offset is deprecated, use an empty string instead in _block_render_blocks() (regel 906 van /customers/2/e/7/tpedigitaal.nl/httpd.www/modules/block/block.module).
  • Deprecated function: Using null as an array offset is deprecated, use an empty string instead in _block_render_blocks() (regel 906 van /customers/2/e/7/tpedigitaal.nl/httpd.www/modules/block/block.module).
  • Deprecated function: Using null as an array offset is deprecated, use an empty string instead in _block_render_blocks() (regel 906 van /customers/2/e/7/tpedigitaal.nl/httpd.www/modules/block/block.module).
  • Deprecated function: Creation of dynamic property SelectQuery::$alterTags is deprecated in SelectQuery->addTag() (regel 982 van /customers/2/e/7/tpedigitaal.nl/httpd.www/includes/database/select.inc).
  • Deprecated function: Creation of dynamic property DatabaseCondition::$stringVersion is deprecated in DatabaseCondition->compile() (regel 1887 van /customers/2/e/7/tpedigitaal.nl/httpd.www/includes/database/query.inc).
  • Deprecated function: Creation of dynamic property DatabaseCondition::$stringVersion is deprecated in DatabaseCondition->compile() (regel 1887 van /customers/2/e/7/tpedigitaal.nl/httpd.www/includes/database/query.inc).
  • Deprecated function: Creation of dynamic property SelectQuery::$alterTags is deprecated in SelectQuery->addTag() (regel 982 van /customers/2/e/7/tpedigitaal.nl/httpd.www/includes/database/select.inc).
  • Deprecated function: Creation of dynamic property DatabaseCondition::$stringVersion is deprecated in DatabaseCondition->compile() (regel 1887 van /customers/2/e/7/tpedigitaal.nl/httpd.www/includes/database/query.inc).
  • Deprecated function: Creation of dynamic property DatabaseCondition::$stringVersion is deprecated in DatabaseCondition->compile() (regel 1887 van /customers/2/e/7/tpedigitaal.nl/httpd.www/includes/database/query.inc).
  • Deprecated function: Creation of dynamic property DatabaseCondition::$stringVersion is deprecated in DatabaseCondition->compile() (regel 1887 van /customers/2/e/7/tpedigitaal.nl/httpd.www/includes/database/query.inc).
  • Deprecated function: Creation of dynamic property DatabaseCondition::$stringVersion is deprecated in DatabaseCondition->compile() (regel 1887 van /customers/2/e/7/tpedigitaal.nl/httpd.www/includes/database/query.inc).
  • Deprecated function: Creation of dynamic property SelectQuery::$alterTags is deprecated in SelectQuery->addTag() (regel 982 van /customers/2/e/7/tpedigitaal.nl/httpd.www/includes/database/select.inc).
  • Deprecated function: Creation of dynamic property DatabaseCondition::$stringVersion is deprecated in DatabaseCondition->compile() (regel 1887 van /customers/2/e/7/tpedigitaal.nl/httpd.www/includes/database/query.inc).
  • Deprecated function: Creation of dynamic property DatabaseCondition::$stringVersion is deprecated in DatabaseCondition->compile() (regel 1887 van /customers/2/e/7/tpedigitaal.nl/httpd.www/includes/database/query.inc).

Veldexperimenten in de praktijk: opzet, uitvoering en analyse

Ketel, Nadine; Vriend, Sandra

Veldexperimenten vormen, mits correct uitgevoerd, een overtuigende methode om het causale effect van een interventie te schatten. In dit praktisch ingestoken artikel worden aandachtspunten besproken die van belang zijn bij de opzet en uitvoering van experimenten. Aan de hand van een drietal veldexperimenten met uiteenlopende beleidsvraagstukken worden deze aandachtspunten toegelicht en wordt besproken hoe hiermee, zowel in de opzet als in de data-analyse, rekening gehouden kan worden.

PDF-pictogram Artikel PDF
© 2007 TPEdigitaal | ISSN 1875-8797