Re: Output format for p-values

[John Darrington]

I pushed a fix for this.

On Sat, Apr 26, 2014 at 07:42:08PM -0700, Douglas Bonett wrote:
     There is a bug in the computation of the p-value for the unequal variance
     option in Contrasts of One-way.  The output is shown below for a 3-group
     design with n = 3 per group and scores of 1,2,3,4,5,6,7,8,9.  The reported
     p-value is 1.98.
     
     
     
     ONEWAY /VARIABLES= score BY group
     
            /CONTRAST= 1 -1 0.
     
     
     
     ANOVA
     
     #====================#==============#==#===========#=====#====#
     
     #                    #Sum of Squares|df|Mean Square|  F  |Sig.#
     
     #=====#==============#==============#==#===========#=====#====#
     
     #score|Between Groups#         54.00| 2|      27.00|27.00| .00#
     
     #     |Within Groups #          6.00| 6|       1.00|     |    #
     
     #     |Total         #         60.00| 8|           |     |    #
     
     #=====#==============#==============#==#===========#=====#====#
     
     
     
     Contrast Coefficients
     
     #==========#==========================#
     
     #          #           group          #
     
     #          #--------+--------+--------#
     
     #          #    1.00|    2.00|    3.00#
     
     #========#=#========#========#========#
     
     #Contrast|1#       1|      -1|       0#
     
     #========#=#========#========#========#
     
     
     
     Contrast Tests
     
     
#===============================#=============#========#=====#====#===========#
     
     #                       Contrast#   Value of  |  Std.  |  t  | df |  Sig.
     (2- #
     
     #                               #   Contrast  |  Error |     |    |  
tailed)
     #
     
     
#=====#================#========#=============#========#=====#====#===========#
     
     #score|Assume equal    |    1   #        -3.00|     .82| 3.67|   6|
     .01#
     
     #     |variances       |        #             |        |     |    |
     #
     
     #     |Does not assume |    1   #        -3.00|     .82|-3.67|4.00|
     1.98#
     
     #     |equal           |        #             |        |     |    |
     #
     
#=====#================#========#=============#========#=====#====#===========#
     
     
     On Mon, Apr 21, 2014 at 10:33 AM, Douglas Bonett <address@hidden> wrote:
     
     > I am using PSPP in an undergrad social science stat course with 110
     > students. These students only use PSPP in GUI mode. We are evaluating 
PSPP
     > as a possible replacement for SPSS in our undergraduate courses.  After 
two
     > weeks of use, here are two issues that the students are complaining 
about:
     >
     > 1)  p-values are displayed in default F8.2 format and they need to report
     > them with 3 decimal places. This will be another problem when we get to
     > correlations and they need to report correlation estimates with 3 
decimals
     > (remember they are only using point and click options). Maybe changing to
     > F7.3 for p-values and correlations would be an easy fix.
     >
     > 2)  when entering data, they get the following error message when then
     > move to a new column:
     >
     >                  warning: Data is not valid as format F: Number followed
     > by garbage.
     >
     >
     > Both issues are minor but in the minds of these types of students they
     > think their program is "broken" or "full of bugs".
     >
     > Doug
     >
     >
     >

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