We estimated that a test of the null hypothesis of no association (odds ratio = 1) between joint attention and case control status would have 80% power to detect odds ratios of 1.7 per standard deviation difference in shared look rate, 2.0 with shared look intensity, 1.6 with shared attention rate and 1.8 with shared attention intensity, assuming a sample size of 53 cases and 106 controls.
In addition, having a father with a "manual" occupation was negatively associated with shared attention rate (p = 0.073), maternal age was negatively associated with shared attention intensity (p = 0.078), and log interaction duration was positively associated with shared attention intensity (p = 0.075).
"We know people are watching with shared attention," he said.
Because these two depression scores were strongly positively correlated with each other (Spearman's ρ = 0.59), and neither showed a consistently stronger association than the other with the shared attention measures, we combined these into a single mean depression score, which was consistently significantly associated with all three joint attention measures (all p < 0.05).
"They came up with four indicators: shared attention, shared reality, variety of opinion, and receptivity," Dorsey tweeted.
She says: "He can sustain a state of shared attention with another person and stay calm and engage in social play," she says.
Furthermore, in these cases, participants were experts in at least one of the task's domains (e.g., piano-playing, dictation-taking), which might have enabled them to perform that task somewhat automatically, with little reliance on a shared attention resource.
Well, I played with friends and there was much shared attention and debate over suspects' behaviour.
None of the three JA behaviours (shared look rate, shared attention rate and shared attention intensity) showed a significant association with the primary outcome of case control status.
Depression scores tended to be negatively associated, or nearly so, with shared look rate (p = 0.332 at 32 40 weeks gestation; p = 0.052 at eight months postnatal) and shared attention rate (p = 0.033 at 32 40 weeks gestation; p = 0.093 at 8 months postnatal), but positively associated with shared attention intensity (p = 0.002 at 32 40 weeks gestation; p = 0.030 at eight months postnatal).
But she explicitly applies her remarks about personal presence to omnipresence when she writes, "in order for God to be omnipresent, that is, in order for God to be always and everyhere present, it also needs to be the case that God is always and everwhere in a position to share attention with any creature able and willing to share attention with God" (2010, 117).
