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. Author manuscript; available in PMC: 2007 Dec 13.
Published in final edited form as: Merrill Palmer Q (Wayne State Univ Press). 2007 Jan;53(1):131–154. doi: 10.1353/mpq.2007.0004

Table 3.

Means and Standard Deviations for Joint Attention Measures

ESCS Behavior M SD
IJA Eye Contact 1.63 2.30
IJA Alternates 1.35 1.52
IJA Points 5.55 5.13
IJA Points with Eye Contact .71 1.30
Lower IJA (Eye Contact + Alternates) 3.04 3.28
Higher IJA (Points + Points with Eye Contact) 6.25 5.74
Total IJA (Lower IJA + Higher IJA) 9.52 6.51
Ratio Higher IJA / Total IJA .64 .32
RJA Ratio Points Followed .70 .20