( ! ) Deprecated: strip_tags(): Passing null to parameter #1 ($string) of type string is deprecated in /home/jlahijani/Sites/goodui.org/site/templates/_og.php on line 13 Call Stack #TimeMemoryFunctionLocation 10.0001465768{main}( ).../index.php:0 20.19692254768ProcessWire\Wire->__call( $method = 'execute', $arguments = [0 => TRUE] ).../index.php:55 30.19692254768ProcessWire\WireHooks->runHooks( $object = class ProcessWire\ProcessPageView { }, $method = 'execute', $arguments = [0 => TRUE], $type = ??? ).../Wire.php:484 40.19692255184ProcessWire\Wire->_callMethod( $method = '___execute', $arguments = [0 => TRUE] ).../WireHooks.php:952 50.19692255184ProcessWire\ProcessPageView->___execute( $internal = TRUE ).../Wire.php:416 60.20282295568ProcessWire\ProcessPageView->renderPage( $page = class ProcessWire\Page { public $id = 3184; public $name = 'evidence-63-a-possible-23-adds-to-cart'; public $parent = '/blog/'; public $template = 'post'; public $title = 'Evidence #63: A Possible +23% Adds To Cart'; public $post_tags = '(PageArray) 3157'; public $body_blocks = '(RepeaterMatrixPageArray) 6605'; public $date = 1480022874; public $comments = '(CommentArray) '; public $summary = ''; public $body = ''; public $data = ['title' => 'Evidence #63: A Possible +23% Adds To Cart', 'post_tags' => class ProcessWire\PageArray { ... }, 'body_blocks' => class ProcessWire\RepeaterMatrixPageArray { ... }, 'date' => 1480022874, 'comments' => class ProcessWire\CommentArray { ... }, 'summary' => '', 'body' => ''] }, $request = class ProcessWire\PagesRequest { } ).../ProcessPageView.module:114 70.21392325704ProcessWire\Wire->__call( $method = 'render', $arguments = [] ).../ProcessPageView.module:184 80.21392325704ProcessWire\WireHooks->runHooks( $object = class ProcessWire\Page { public $id = 3184; public $name = 'evidence-63-a-possible-23-adds-to-cart'; public $parent = '/blog/'; public $template = 'post'; public $title = 'Evidence #63: A Possible +23% Adds To Cart'; public $post_tags = '(PageArray) 3157'; public $body_blocks = '(RepeaterMatrixPageArray) 6605'; public $date = 1480022874; public $comments = '(CommentArray) '; public $summary = ''; public $body = ''; public $data = ['title' => 'Evidence #63: A Possible +23% Adds To Cart', 'post_tags' => class ProcessWire\PageArray { ... }, 'body_blocks' => class ProcessWire\RepeaterMatrixPageArray { ... }, 'date' => 1480022874, 'comments' => class ProcessWire\CommentArray { ... }, 'summary' => '', 'body' => ''] }, $method = 'render', $arguments = [], $type = ??? ).../Wire.php:484 90.21402327664ProcessWire\Wire->__call( $method = 'renderPage', $arguments = [0 => class ProcessWire\HookEvent { public $data = [...] }] ).../WireHooks.php:1060 100.21402327664ProcessWire\WireHooks->runHooks( $object = class ProcessWire\PageRender { public $data = ['clearCache' => 1] }, $method = 'renderPage', $arguments = [0 => class ProcessWire\HookEvent { public $data = [...] }], $type = ??? ).../Wire.php:484 110.21402328080ProcessWire\Wire->_callMethod( $method = '___renderPage', $arguments = [0 => class ProcessWire\HookEvent { public $data = [...] }] ).../WireHooks.php:952 120.21402328080ProcessWire\PageRender->___renderPage( $event = class ProcessWire\HookEvent { public $data = ['object' => class ProcessWire\Page { ... }, 'method' => 'render', 'arguments' => [...], 'return' => NULL, 'replace' => FALSE, 'options' => [...], 'id' => 'Page:100.0:render', 'cancelHooks' => FALSE, 'when' => 'after'] } ).../Wire.php:416 130.21472328640ProcessWire\Wire->__call( $method = 'render', $arguments = [] ).../PageRender.module:575 140.21472328640ProcessWire\WireHooks->runHooks( $object = class ProcessWire\TemplateFile { public $data = ['wire' => class ProcessWire\ProcessWire { ... }, 'classLoader' => class ProcessWire\WireClassLoader { ... }, 'hooks' => class ProcessWire\WireHooks { ... }, 'config' => class ProcessWire\Config { ... }, 'notices' => class ProcessWire\Notices { ... }, 'urls' => class ProcessWire\Paths { ... }, 'log' => class ProcessWire\WireLog { ... }, 'sanitizer' => class ProcessWire\Sanitizer { ... }, 'datetime' => class ProcessWire\WireDateTime { ... }, 'files' => class ProcessWire\WireFileTools { ... }, 'mail' => class ProcessWire\WireMailTools { ... }, 'database' => class ProcessWire\WireDatabasePDO { ... }, 'db' => class ProcessWire\DatabaseMysqli { ... }, 'cache' => class ProcessWire\WireCache { ... }, 'modules' => class ProcessWire\Modules { ... }, 'procache' => class ProcessWire\ProCache { ... }, 'fieldtypes' => class ProcessWire\Fieldtypes { ... }, 'fields' => class ProcessWire\Fields { ... }, 'fieldgroups' => class ProcessWire\Fieldgroups { ... }, 'templates' => class ProcessWire\Templates { ... }, 'pages' => class ProcessWire\Pages { ... }, 'permissions' => class ProcessWire\Permissions { ... }, 'roles' => class ProcessWire\Roles { ... }, 'users' => class ProcessWire\Users { ... }, 'user' => class ProcessWire\User { ... }, 'session' => class ProcessWire\Session { ... }, 'input' => class ProcessWire\WireInput { ... }, 'buster' => class ProcessWire\ProCacheBuster { ... }, 'process' => class ProcessWire\ProcessPageView { ... }, 'page' => class ProcessWire\Page { ... }, 'options' => [...]] }, $method = 'render', $arguments = [], $type = ??? ).../Wire.php:484 150.21472329992ProcessWire\Wire->_callMethod( $method = '___render', $arguments = [] ).../WireHooks.php:952 160.21472329992ProcessWire\TemplateFile->___render( ).../Wire.php:413 170.29062872136require( '/home/jlahijani/Sites/goodui.org/site/templates/_main.php ).../TemplateFile.php:340 180.29152910712include( '/home/jlahijani/Sites/goodui.org/site/templates/_og.php ).../_main.php:64 190.29292911448strip_tags( $string = NULL ).../_og.php:13 " />

Evidence #63: A Possible +23% Adds To Cart

Tagged as: Results

Thanks to Doug Baltman from Yotpo.com for sharing Evidence Test #63. The key change of this experiment was an introduction of Instagram photos taken by customer with the product itself. This test is giving us +0.5 certainty points favoring the use of such product photos and gives rise to Pattern #12.

What Can We Learn From This Test?

The test introduced a single isolated change - which makes analysis easier. The measure of "Adds To Cart" although isn't as deep as true sales (and therefore probably lower than sales), does contain some purchase intent. Overall we are able to extract a +0.5 certainty score from this test in favor of showing product photos.