t-test report
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Dear List members,
I have done t-test using SPSS. I got a big table with many figures.The column Sig. (2-tailed) reads ,000. This means the mean differences is significant. I just don't know how to report this in a research paper. What stats from the table should I report and in what format? I dont think that i need to cut and paste the entire table. Should I draw another table? or just mention the stats in the text? Thanks Humphry --------------------------------- Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. ===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD |
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Humphrey Paulie escribió:
> Dear List members, > I have done t-test using SPSS. > I got a big table with many figures.The column Sig. (2-tailed) reads ,000. This means the mean differences is significant. > I just don't know how to report this in a research paper. What stats from the table should I report and in what format? I dont think that i need to cut and paste the entire table. Should I draw another table? or just mention the stats in the text? > I recommend you to report mean(sd) for both groups, and the confidence interval for the means difference, plus the p-value (BTW, do NOT quote it as p=0.000, but say instead p<0.001). Have you taken into account the homogeneity of variances test (Levene) in order to select the correct t-test? Best regards, Marta García-Granero ===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD |
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In reply to this post by Humphrey Paulie
Knowing nothing about your discipline, might I still suggest that you
present your results according to APA writing guidelines. If you only have a few means that you are comparing, you can present them in text without charts or tables. Marta's suggestion regarding confidence intervals is critical. DON'T IGNORE IT. Unless there is a compelling scale reason to do otherwise, round to 2 decimal places. For a single t-test (either the one-sample or 2-sample variety) present the results in text (Means, SDs t-value, degrees of freedom, significance and confidence interval). For several tests, table the results: An example group 1 group 2 Mean SD Mean SD df t 95ci measure 1 measure 2 measure 3 * p < .05. ** p < .01 *** p < .001 Asterisk the t values to indicate significance. Such as: 1.99 * Don't ignore Marta's question about Levene's test. If needed, report the adjusted test statistics rather than the standard t. *************************************************************************************************************************************************************** Mark A. Davenport Ph.D. Senior Research Analyst Office of Institutional Research The University of North Carolina at Greensboro 336.256.0395 [hidden email] 'An approximate answer to the right question is worth a good deal more than an exact answer to an approximate question.' --a paraphrase of J. W. Tukey (1962) Humphrey Paulie <[hidden email]> Sent by: "SPSSX(r) Discussion" <[hidden email]> 02/11/2008 04:59 AM Please respond to Humphrey Paulie <[hidden email]> To [hidden email] cc Subject t-test report Dear List members, I have done t-test using SPSS. I got a big table with many figures.The column Sig. (2-tailed) reads ,000. This means the mean differences is significant. I just don't know how to report this in a research paper. What stats from the table should I report and in what format? I dont think that i need to cut and paste the entire table. Should I draw another table? or just mention the stats in the text? Thanks Humphry --------------------------------- Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. ===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD ===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD |
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