{"action":"closed","issue":{"url":"https://api.github.com/repos/0todd0000/spm1dmatlab/issues/25","repository_url":"https://api.github.com/repos/0todd0000/spm1dmatlab","labels_url":"https://api.github.com/repos/0todd0000/spm1dmatlab/issues/25/labels{/name}","comments_url":"https://api.github.com/repos/0todd0000/spm1dmatlab/issues/25/comments","events_url":"https://api.github.com/repos/0todd0000/spm1dmatlab/issues/25/events","html_url":"https://github.com/0todd0000/spm1dmatlab/issues/25","id":179034829,"number":25,"title":"Related to my previous post (error performing t-test","user":{"login":"PouyanMehryar","id":17261178,"avatar_url":"https://avatars.githubusercontent.com/u/17261178?v=3","gravatar_id":"","url":"https://api.github.com/users/PouyanMehryar","html_url":"https://github.com/PouyanMehryar","followers_url":"https://api.github.com/users/PouyanMehryar/followers","following_url":"https://api.github.com/users/PouyanMehryar/following{/other_user}","gists_url":"https://api.github.com/users/PouyanMehryar/gists{/gist_id}","starred_url":"https://api.github.com/users/PouyanMehryar/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/PouyanMehryar/subscriptions","organizations_url":"https://api.github.com/users/PouyanMehryar/orgs","repos_url":"https://api.github.com/users/PouyanMehryar/repos","events_url":"https://api.github.com/users/PouyanMehryar/events{/privacy}","received_events_url":"https://api.github.com/users/PouyanMehryar/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":3,"created_at":"2016-09-24T15:13:43Z","updated_at":"2016-09-26T20:12:39Z","closed_at":"2016-09-26T20:12:39Z","body":"Dear Tod,\r\n\r\nI wonder if you could help me on the issue that I have mentioned in my previous thread. \r\nIt was established that SPM cant not be used for my data because I only have one trial.\r\nHow would you go about to statistically analyse such data when you only have limited number of trials (In my case only 1 from different conditions)? most of the data that I have do not hold normality assumptions as the shapiro wilk normality test is significant (P<0.05). In this case do I need to use a non-parametric test  (Wilcoxon sign rank)??\r\n\r\nCould I still use the parametric pair-t test in one of the statistical packages like SPSS even though the data is not normal? and I still dont understand why the data is not normal while there are 60 points in each trial which satisfy the rule of thumb of having more than 50 observation.\r\n\r\nThank you in advance for your response."}}
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