Table 3 Categories of barriers with the percentage of instructors who perceive each item (n = 584)

Number

Academic

Percentage

Number

Student receptivity

Percentage

 B01

The culture in my department prioritizes research over teaching

31

B16

I am concerned for my students who are shy feeling uncomfortable during group work

37

 B02

My efforts in teaching could be misconstrued as reduced efforts in research and hurt my career

16

B17

My students are not as enthusiastic about active learning as I thought they would be

26

 B03

My colleagues (senior) to me are not supportive

12

B18

My students will not appreciate having to work more in class

23

 B04

My colleagues (peers) are not supportive*^a

10

B19

I am worried about my students who have a hard time focusing taking the group work off task

21

 B05

My department is not supportive

4

B20

I am concerned about my students who are farther behind getting discouraged when they are in group work

21

 B06

The SI community has not continued to support me

2

B21

My students will not appreciate the interactive aspect of active learning

19

B22

I am worried that my students will not cooperate with activities

15

B23

My students are not focused enough to engage in material without more class structure

14

B24

My students are not able to work at the level that active learning requires

9

Number

Personal teaching

Percentage

Number

Logistic

Percentage

 B07

I have a hard time coming up with class activities*

26

B25

I do not have enough time to prepare class materials

58

 B08

I do not feel that I have enough knowledge to implement inclusive teaching (i.e., sometimes I do not even know what the correct thing is to say)*

16

B26

I do not have enough time during class for the activities

45

 B09

The whole process of redesigning my courses is simply intimidating*

13

B27

I worry that we will not be able to cover all of the required core material*

40

 B10

I am overwhelmed with trying to figure out what to do and I do not know where to start*

8

B28

I do not have enough class space for group activities

30

 B11

I am not enough of an extrovert to be so interactive with students*

7

B29

There is not money for class activities

15

 B12

I am more comfortable with my PowerPoints as they are*

5

B30

There is no money for clickers

6

 B13

I am not comfortable teaching in an interactive way*

4

 B14

I am not comfortable giving students ongoing feedback because it might spur on uncomfortable interactions

3

 B15

[Evidence-based teaching] is simply not my style of teaching

1