Re: Big odds ration in binary regression output

Posted by Sidra on Aug 23, 2017; 9:52pm
URL: http://spssx-discussion.165.s1.nabble.com/Big-odds-ratio-in-binary-regression-output-tp5734731p5734754.html

Yes Eugene, you're right in assuming that only one item has phi value of .61 but 4 other items related to interpersonal care also have fairly high phi statistic (-.44, -.43, -.56, -.44) . Here I would want you to note that the instrument to measure "childbirth care experience" was developed by me. I used exploratory factor analysis to extract the dimensions. While I look at the Factor loading matrix and structure matrix , the values for the items with high phi values are also considerably high with a range of .77-.89 (rotated factor loading). Since the items are highly correlated with the underlying construct they are measuring, with each other and with the DV, does this explain high OR?