Beyond Query-Oriented Highlighting: Investigating the Effect of Snippet Text Highlighting in Search User Behavior

Table 5

Search cost comparison across different search tasks.

	NA (%)	IN (%)	TR (%)	w/IA (%)	w/oIA (%)
DT	6.3	18.7	13.0	27.2	6.0
C-RN	5.0	7.8	19.0	16.3	7.2
C-RD	26.7	13.7	17.6	28.4	4.3
C-SL	5.0	8.2	18.6	17.5	7.2
E-RN	19.4	9.3	24.0	20.2	2.4
E-RD	23.7	13.7	5.6	34.2	2.6
E-SL	44.3	11.1	24.0	23.5	6.8

Percentage decrease is, respectively, denoted by down arrow and down filled triangle, and percentage increase is, respectively, denoted by up arrow and up filled triangle. Filled triangles indicate t-test; statistical significance at level.