Table 2.

Exploratory factor analysis (EFA) of the adapted IT‐HOME inventory

Item	F1	F2	F3	h 2
The exterior of the house is well maintained	1.03			0.82
The living room is tidy	1.02			0.72
The walls inside the house are in good condition	1.00			0.76
The kitchen or toilet is unclean (–)	0.98			0.63
Neglected houses are present in the street (–)	0.94			0.73
The windows or walls are damp inside the residence (–)	0.88			0.56
The street where the family lives looks clean	0.82			0.65
Basic furniture is present	0.64			0.40
Central heating system is present	0.59			0.25
One could smell cigarette smoke in the residence (–)	0.56			0.23
Various toys are available for the infant during home visita		0.97		0.97
Cuddly toys are available for the infanta		0.96		0.91
Musical toys are available for the infanta		0.87		0.89
Muscle activity toys or equipment are available for the infantb		0.86		0.89
Infant has a special place to lay down and playa		0.69		0.73
Parent responds verbally to infant's vocalizations or verbalizationsb			0.91	0.92
Parent expresses positive feelings toward infanta			0.89	0.79
Parent spontaneously vocalizes to infant at least oncea			0.87	0.81
Parent caresses or kisses infant at least onceb			0.69	0.62
Parent makes eye contact with infant			0.65	0.73
Parent spontaneously praises infant at least twiceb			0.62	0.57
Parent responds positively to praise of infant offered by visitorb			0.38	0.57
Parent keeps infant in visual range, looks at oftenb			0.25	0.25
Factor correlations
Factor 2	0.58	—
Factor 3	0.47	0.32	—
Other observation items
At least 10 books or CDs are availablea
Paid daily paper is present
Infant is clean
Infant has clean clothes and bed linen
Infant's play environment is unsafe (–)b
The television is on in the residence (–)

Note: Values are factor loadings and communalities (h ²) for EFA using geomin rotations in 3406 families. Factor labels: F1, physical environment; F2, play and learning environment; F3, social‐emotional environment; (–) Reversed items were recoded before EFA.

^aSlightly revised original IT‐HOME item.

^bOriginal IT‐HOME item.