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Table 2 Multiple linear regression analysis examining the relationship between performance on preclinical examinations and the listed predictors

From: Evaluating a grading change at UCSD school of medicine: pass/fail grading is associated with decreased performance on preclinical exams but unchanged performance on USMLE step 1 scores

Variable

First

Year

Scores

First

Year

Scores

Both

Year

Scores

(1)

 

(2)

(3)

 

(4)

(5)

 

(6)

P/F grading

0.728

 

0.350

-0.908*

 

-1.409***

2.331***

 

1.779**

 

(0.513)

 

(0.491)

(0.473)

 

(0.444)

(0.800)

 

(0.843)

Test year (Year 1 = 0, Year 2 = 1)

      

-1.649***

 

-1.684***

       

(0.192)

 

(0.200)

P/F grading × Test Year

      

-1.614***

 

-1.539***

       

(0.404)

 

(0.469)

Sex (1 = female, 0 = male)

  

0.104

  

0.829

  

0.468

   

(0.544)

  

(0.516)

  

(0.486)

Age

  

-0.0294

  

0.0327

  

0.00157

   

(0.0945)

  

(0.0775)

  

(0.0782)

In-state applicant (1 = yes, 0 = no)

  

-0.0259

  

-1.714*

  

-0.869

   

(1.058)

  

(0.913)

  

(0.914)

MCAT: Biological sciences

  

1.421***

  

1.060***

  

1.240***

   

(0.230)

  

(0.222)

  

(0.209)

MCAT: Physical sciences

  

0.407**

  

0.194

  

0.301**

   

(0.159)

  

(0.161)

  

(0.150)

MCAT: Verbal reasoning

  

0.302*

  

0.762***

  

0.532***

   

(0.159)

  

(0.140)

  

(0.131)

Undergraduate GPA - Science

  

6.314***

  

5.913***

  

6.114***

   

(1.073)

  

(1.034)

  

(0.961)

Major: Chemistry

  

0.288

  

1.278

  

0.784

   

(0.833)

  

(0.777)

  

(0.734)

Major: MECS

  

-0.673

  

-1.332**

  

-1.003

   

(0.748)

  

(0.613)

  

(0.619)

Major: Other

  

-2.548***

  

-0.859

  

-1.701*

   

(0.903)

  

(1.013)

  

(0.872)

Constant

 

80.24***

34.51***

81.04***

 

38.42***

83.11***

 

38.99***

  

(1.516)

(5.063)

(0.473)

 

(4.609)

(0.782)

 

(4.345)

Student fixed effects

 

Yes

Yes

Yes

 

Yes

Yes

 

Yes

Observations

 

8,633

7,289

8,622

 

7,287

17,255

 

14,576

R-squared

 

0.075

0.174

0.115

 

0.227

0.096

 

0.194

  1. Notes and sources:
  2. *p-value < 0.1, **p-value < 0.05, ***, p-value < 0.01.
  3. Standard errors in parentheses represent robust standard errors with clustering by individual student.
  4. “Major: Biology” has been referenced as the baseline major.