我運行了兩個meta分析,並且想證明兩個meta分析中計算出的平均效應大小(在fisher z中)不同。在meta分析中測試兩個顯着差異的平均效應大小
由於我在R中退出了新的版本,而不是統計中的這樣的專業版,您能否提供適當的測試以及如何在R中進行測試?
這裏是我目前的兩個薈萃分析的結果:
> results1GN
Random-Effects Model (k = 4; tau^2 estimator: REML)
tau^2 (estimated amount of total heterogeneity): 0.0921 (SE = 0.0752)
tau (square root of estimated tau^2 value): 0.3034
I^2 (total heterogeneity/total variability): 99.98%
H^2 (total variability/sampling variability): 5569.05
Test for Heterogeneity:
Q(df = 3) = 22183.0526, p-val < .0001
Model Results:
estimate se zval pval ci.lb ci.ub
0.3663 0.1517 2.4139 0.0158 0.0689 0.6637 *
---
Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1
> results1NN
Random-Effects Model (k = 72; tau^2 estimator: REML)
tau^2 (estimated amount of total heterogeneity): 0.0521 (SE = 0.0096)
tau (square root of estimated tau^2 value): 0.2282
I^2 (total heterogeneity/total variability): 95.98%
H^2 (total variability/sampling variability): 24.85
Test for Heterogeneity:
Q(df = 71) = 1418.1237, p-val < .0001
Model Results:
estimate se zval pval ci.lb ci.ub
0.2594 0.0282 9.2016 <.0001 0.2042 0.3147 ***
可以在metafor包網站(用戶明顯用於分析)上找到關於如何完成此操作的描述/說明:http://www.metafor-project.org/doku.php/tips :comp_two_independent_estimates – Wolfgang