Sig. (p value)

[Anthony James]

Dear all,

In the old days for testing whether the difference between two means is significant we used to consult the t table to check if our t exceeds the critical values in the table.

But now, there is a Sig. in the output and if it’s smaller than our significance level we reject the null hypothesis.

Can somebody explain how the Sig (or p)in SPSS is computed?

Cheers

Anthony

 

[Art Kendall]

Click <help> <algorithms> scroll down to and click <significance of a t statistic>


Art Kendall
Social Research Consultants

On 11/27/2011 3:13 AM, Anthony James wrote:

Dear all,

In the old days for testing whether the difference between two means is significant we used to consult the t table to check if our t exceeds the critical values in the table.

But now, there is a Sig. in the output and if it’s smaller than our significance level we reject the null hypothesis.

Can somebody explain how the Sig (or p)in SPSS is computed?

Cheers

Anthony

�

===================== 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