As Bill notes, the conditional nature of p values is not well recognized by most folks.
Cheers, Karl W. -----Original Message----- From: William Scott [mailto:[email protected]] Sent: Tuesday, July 21, 2009 5:51 PM To: Teaching in the Psychological Sciences (TIPS) Subject: RE:[tips] Reporting Correlations in APA Style Rick Froman quotes the new APA manual on page 34 as: "For inferential statistical tests (e.g., t, F, and chi square tests), include the obtained value or magnitude of the test statistic, the degrees of freedom, the probability of obtaining a value as extreme or more extreme than the one obtained (the exact p value), and the size and direction of the effect." ------ It is impossible to know what the probability is of obtaining a value as extreme or more extreme than the one obtained and p values certainly don't tell us that. Why should we submit to instructions from people who don't know what they are talking about? --- To make changes to your subscription contact: Bill Southerly ([email protected])
