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[R-meta] About the coefficient in meta-regression analysis

2 messages · 英文科陳品誠, Michael Dewey

英文科陳品誠
# 
Dear all,
       This is part of my meta-regression analysis result after I use the
following code:
Model results:
                               estimate  .....
intercept                0.6820   .....
eduH                      0.4590   ......
eduI                        -0.0834 ......
eduK                       0.5668 ........
eduS                       0.2473   .......

     The *edu *here stands for the moderator "educational level" from my
dataset and the *eduH, eduI, eduK*, and *eduS* stands for different
subgroups. Does the 0.4590 here represent the coefficient of the subgroup
*eduH* ? And is there a code to get the overall coefficient of the
moderator "educational level" rather than the individual coefficient of
each subgroup?

 Nick Chen

??? (Nick Chen)
Email: t571 at wlgsh.tp.edu.tw <t5741 at wlgsh.tp.edu.tw>
Michael Dewey
# 
Dear Nick

Comments in line
On 19/12/2023 11:51, ?????? via R-sig-meta-analysis wrote:
In a model with an intercept each level is compared to a reference level 
so the value, 0.4590, is the difference estimated between group H and 
the reference group.

  And is there a code to get the overall coefficient of the
The short answer is "No". You can do a test for the overall effect of 
educational level. You could also in a simple model like this remove the 
intercept so each coefficient would then be tested for its difference 
from zero.

Michael