Table 2.

Characteristics of the Breast Milk Expression Experience measure and subscales

Scale	# of items	Cronbach's alpha	Range of scale scores	Mean scale scores ± SD
Social support*	2	0.7357	1–5	3.95 (0.93)
Personal experience †	5	0.7192	1–3.6	2.67 (0.66)
Learning experience ‡	4	0.7633	1.5–5	3.80 (0.74)
Summary score	11	0.7032	1.55–4.45	3.41 (0.52)

^* Social support: (1) Family members support (pumping/hand expression); (2) My partner supports (pumping/hand expression).

^† Personal experience: (3) I feel peaceful when (pumping/hand expressing); (4) I look forward to (pumping/hand expressing); (5) I enjoy (pumping/hand expressing); (6) (Pumping/hand expressing) is something I could do easily while doing other things; (7) (Pumping/hand expression) feels awkward.

^‡ Learning experience: (8) (Pumping/hand expressing) is easy to (use/do); (9) I had no problems figuring out how to (use the pump/hand express colostrum/milk); (10) I could easily teach (the pump to someone/someone how to hand express colostrum/milk); (11) I could easily show someone how to (use the pump/hand express).