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  • How to interpret significance level of ATT result from psmatch2 command?

    Dear Statalists,

    I got results from psmatch2 command as below. Could you please tell me where to look at the statistical significance level of ATT (average treatment effects on the treated) and how to interpret it?
    PHP Code:
    Logistic regression                             Number of obs     =      4,575
                                                    LR chi2
    (4)        =       3.69
                                                    Prob 
    chi2       =     0.4502
    Log likelihood 
    = -75.478871                     Pseudo R2         =     0.0238

    ------------------------------------------------------------------------------
           
    f_acq |      Coef.   StdErr.      z    P>|z|     [95ConfInterval]
    -------------+----------------------------------------------------------------
             
    age |  -.0236874   .0459771    -0.52   0.606    -.1138009    .0664261
          emp_l1 
    |   .0001754   .0006347     0.28   0.782    -.0010686    .0014194
      tang_as_l1 
    |  -.0000142   .0000128    -1.11   0.268    -.0000393    .0000109
          tfp_l1 
    |   .5203516   .3742759     1.39   0.164    -.2132156    1.253919
           _cons 
    |  -10.98583   3.771964    -2.91   0.004    -18.37874   -3.592918
    ------------------------------------------------------------------------------
    Note42 failures and 0 successes completely determined.
    ----------------------------------------------------------------------------------------
            
    Variable     Sample |    Treated     Controls   Difference         S.E.   T-stat
    ----------------------------+-----------------------------------------------------------
            
    lntfp_l1  Unmatched 2.36691557   2.32695041   .039965167    .03855111     1.04
                            ATT 
    2.36691557   2.33965681   .027258765   .050448074     0.54
    ----------------------------+-----------------------------------------------------------
               
    lntfp  Unmatched 2.38784469   2.33340659   .054438098   .037682983     1.44
                            ATT 
    2.38784469   2.34791125   .039933443   .046660502     0.86
    ----------------------------+-----------------------------------------------------------
            
    lntfp_f1  Unmatched 2.38636468   2.34007422   .046290461    .03817162     1.21
                            ATT 
    2.38636468   2.34560117   .040763508   .048990231     0.83
    ----------------------------+-----------------------------------------------------------
            
    lntfp_f2  Unmatched |  2.3876902   2.34425758   .043432621   .038525625     1.13
                            ATT 
    |  2.3876902   2.34922537   .038464828    .05125152     0.75
    ----------------------------+-----------------------------------------------------------
    NoteS.Edoes not take into account that the propensity score is estimated.

               | 
    psmatch2:
     
    psmatch2: |   Common
     Treatment 
    |  support
    assignment 
    On suppor |     Total
    -----------+-----------+----------
     
    Untreated |     4,564 |     4,564 
       Treated 
    |        11 |        11 
    -----------+-----------+----------
         
    Total |     4,575 |     4,575 
    (307,801 real changes made)
    (
    307,801 real changes made)
    (
    307,801 real changes made)
    (
    307,801 real changes made
    Thank you for your stopping by!

    Han Vuong Dieu.
    Last edited by Han Vuong Dieu; 20 Jan 2019, 05:45.

  • #2
    hey, I have the same question. please let me know the interpretation of the above results, if you know the answer by now.

    Comment


    • #3
      I also would like to know.

      Comment


      • #4
        Hi, have you figured it out?

        Comment

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