Table 6.

Impact of external factors upon ND tests

Impact of total annual household income upon overall FSIQ (WISC-V) 
Income level n Estimate (95% CI) P value 
>$150,000 13 Reference value ​ 
$50,000–$150,000 28 −14.73 (−25.73, −3.73) 0.010 
<$50,000 15 −21.29 (−33.68, −8.89) 0.001 
Missing na ​ 
Prefer not to answer na ​ 
Impact of language other than English spoken at home upon global executive composite T score (BRIEF-2, parent) 
Response n Estimate (95% CI) P value 
No 40 Reference value ​ 
Yes 27 −8.11 (−14.04, −2.18) 0.008 
Impact of total annual household income upon overall FSIQ (WISC-V) 
Income level n Estimate (95% CI) P value 
>$150,000 13 Reference value ​ 
$50,000–$150,000 28 −14.73 (−25.73, −3.73) 0.010 
<$50,000 15 −21.29 (−33.68, −8.89) 0.001 
Missing na ​ 
Prefer not to answer na ​ 
Impact of language other than English spoken at home upon global executive composite T score (BRIEF-2, parent) 
Response n Estimate (95% CI) P value 
No 40 Reference value ​ 
Yes 27 −8.11 (−14.04, −2.18) 0.008 

na, not applicable.

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