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. Author manuscript; available in PMC: 2022 Sep 1.
Published in final edited form as: J Autism Dev Disord. 2021 Sep 18;52(9):4067–4078. doi: 10.1007/s10803-021-05280-6

Table 3.

Item Statistics for the Confirmatory Factor Analysis of the AIR Self-Determination Scale Student and Parent Forms

Domain Items Mean (SD) Corrected item-total correlation Standardized factor loading

Student Capacity Do1s 3.94(.77) .50 .61
Do2s 3.31(.89) .70 .77
Do3s 3.28(.91) .69 .77
Do4s 3.09(.99) .68 .80
Do5s 3.03(1.07) .59 .70
Do6s 3.29(1.01) .59 .66
Feel1s 3.95(.87) .41 .55
Feel2s 3.76(.90) .60 .69
Feel3s 3.42(1.04) .70 .79
Feel4s 3.14(1.05) .62 .75
Feel5s 3.18(1.03) .73 .82
Feel6s 3.60(.92) .53 .62
Home3s 3.61(1.02) .53 .45
School3s 3.37(1.03) .56 .44
Student Opportunity at Home Home1s 4.10(.93) .62 .75
Home2s 4.10(.99) .71 .84
Home3s 3.61(1.02) .52 .44
Home4s 4.02(1.05) .68 .77
Home5s 4.12(1.05) .63 .76
Home6s 4.01(1.03) .68 .82
Student Opportunity at School School1s 3.42(1.04) .57 .70
School2s 3.35(1.20) .72 .81
School3s 3.38(1.04) .55 .50
School4s 3.50(1.28) .73 .81
School5s 3.36(1.32) .66 .77
School6s 3.38(1.16) .72 .83

Parent-Reported Capacity Do1p 3.72(.75) .33 .41
Do2p 2.96(.84) .74 .89
Do3p 2.65(.86) .75 .88
Do4p 2.56(.90) .65 .78
Do5p 2.54(.94) .63 .76
Do6p 2.59(.89) .68 .80
Home3p 3.35(.95) .57 .49
School3p 3.28(.82) .51 .50

Parent-Reported Opportunity at Home Home1p 4.02(.692) .54 .82
Home2p 4.08(.750) .54 .80
Home3p 3.35(.95) .53 .42
Home4p 3.97(.785) .42 .53
Home5p 4.00(.911) .30 .81
Home6p 4.18(.807) .40 .92

Parent-Reported Opportunity at School School1p 3.94(.85) .60 .88
School2p 4.00(.88) .52 .80
School3p 3.35(.95) .71 .42

School4p 3.66(.892) .55 .71
School5p 3.81(.923) .39 .83
School6p 3.77(.947) .49 .93