{"id":20100,"date":"2024-08-19T21:38:51","date_gmt":"2024-08-19T21:38:51","guid":{"rendered":"https:\/\/psychologydictionary.ae\/the-null-hypothesis-or-null-hypothesis\/"},"modified":"2026-02-25T18:07:40","modified_gmt":"2026-02-25T18:07:40","slug":"the-null-hypothesis-or-null-hypothesis","status":"publish","type":"post","link":"https:\/\/psychologydictionary.ae\/en\/the-null-hypothesis-or-null-hypothesis\/","title":{"rendered":"Null Hypothesis (Main Hypothesis, Zero Hypothesis)"},"content":{"rendered":"\n<p>a component of a statistical hypothesis asserting that:<br>1) the independent variable does not influence the dependent variable;<br>2) there are no differences between the results of the compared groups;<br>3) the relationship between parameters is insignificant.<br>Examples of null hypotheses in psychology include:<br>1) absence of effect \u2013 for example, H0: \u201cThere are no differences in mean anxiety levels between the group receiving therapy and the control group\u201d;<br>2) no effect of training on memory \u2013 H0: \u201cTraining in new memorization techniques will not lead to statistically significant changes in participants\u2019 memory\u201d;<br>3) no difference in effectiveness of teaching methods \u2013 H0: \u201cThe effectiveness of method A does not differ from the effectiveness of method B in teaching new skills.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"<p>a component of a statistical hypothesis asserting that:1) the independent variable does not influence the dependent variable;2) there are no differences between the results of the compared groups;3) the relationship between parameters is insignificant.Examples of null hypotheses in psychology include:1) absence of effect \u2013 for example, H0: \u201cThere are no differences in mean anxiety levels [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"footnotes":""},"categories":[113],"tags":[],"class_list":["post-20100","post","type-post","status-publish","format-standard","hentry","category-key-psychological-concepts-in-experimental-psychology"],"_links":{"self":[{"href":"https:\/\/psychologydictionary.ae\/en\/wp-json\/wp\/v2\/posts\/20100","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/psychologydictionary.ae\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/psychologydictionary.ae\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/psychologydictionary.ae\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/psychologydictionary.ae\/en\/wp-json\/wp\/v2\/comments?post=20100"}],"version-history":[{"count":4,"href":"https:\/\/psychologydictionary.ae\/en\/wp-json\/wp\/v2\/posts\/20100\/revisions"}],"predecessor-version":[{"id":80598,"href":"https:\/\/psychologydictionary.ae\/en\/wp-json\/wp\/v2\/posts\/20100\/revisions\/80598"}],"wp:attachment":[{"href":"https:\/\/psychologydictionary.ae\/en\/wp-json\/wp\/v2\/media?parent=20100"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/psychologydictionary.ae\/en\/wp-json\/wp\/v2\/categories?post=20100"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/psychologydictionary.ae\/en\/wp-json\/wp\/v2\/tags?post=20100"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}