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Table 8 Evidence of differential item functioning by race and language using the likelihood ratio test

From: Racism in obstetric care: a psychometric study of the Gendered Racial Microaggressions Scale among Global Majority birthing people in obstetric contexts 

Items

AIC

BIC

X2

df

P value

By Race (Black v. Hispanic)

 I have felt unheard

-

-

-

NA

 My comments have been ignored

2.75

10.14

1.25

2

0.535

 I have been disrespected

-0.94

6.45

4.94

2

0.254

 Someone has tried to “put me in my place”

3.39

10.78

0.61

2

0.736

 Felt excluded from services or resources 

1.66

9.05

2.34

2

0.466

 Assumed I did not have much to contribute to the conversation regarding my care 

-

-

-

-

NA

 Someone told me to calm down

-

-

-

-

NA

 Someone accused me of being angry when speaking calmly

-

-

-

-

NA

Language (English v. Spanish)

 I have felt unheard

3.76

11.15

0.24

2

0.886

 My comments have been ignored

 

-

NA

 I have been disrespected

-0.73

6.67

4.73

2

0.188

 Someone has tried to “put me in my place”

1.55

8.95

2.45

2

0.392

 Felt excluded from services or resources 

-6.15

1.25

10.15

2

0.025

 Assumed I did not have much to contribute to the conversation regarding my care 

-

-

-

-

NA

 Someone told me to calm down

-

-

-

-

NA

 Someone accused me of being angry when speaking calmly

-

-

-

-

NA

  1. P-value adjusted for multiple comparisons using Bonferroni correction. Unestimated items were anchor items based on similarities in empirical distributions between comparison groups