Table 7 Mean (M) number of question...

Table 7

Mean (M) number of question types and interviewer behaviours during the individual and collaborative interview with standard deviation (SD) and the minimum (min) and maximum (max)

	Individual interview					Collaborative interview
Type	M	SD	Min	Max	% of total	M	SD	Min	Max	% of total
Open question	19.30	8.49	8	34	14.3	16.20	12.03	6	37	22.7
Closed question	22.50	14.46	8	52	16.0	11.40	11.28	2	31	12.7
Yes/no question	23.20	8.57	9	37	18.3	7.80	5.59	3	17	10.0
Multiple-choice question	3.90	1.66	1	6	3.0	1.20	1.30	0	3	1.9
Clarifying question	73.60	43.22	25	134	48.2	38.60	36.21	6	100	43.3
Questions about inconsistencies	0.40	0.70	0	2	0.3	2.00	1.58	0	4	4.5
Checking with other witness	0.00	0.00	0	0	0.0	3.60	2.30	2	7	5.0
Total question type	142.90	54.27	82	249	100	80.80	65.00	32	195	100
Positive behaviours	9.10	6.01	3	24	54.7	5.00	2.55	2	9	45.5
Option for free recall	0.30	0.68	0	2	1.7	0.20	0.45	0	1	0.8
Asking for details	0.60	0.70	0	2	3.1	0.40	0.55	0	1	3.3
‘Don’t know’ option	2.60	1.58	0	5	17.3	1.00	0.71	0	2	9.3
Context reinstatement	0.00	0.00	0	0	0.0	0.20	0.45	0	1	0.8
Visualization	0.20	0.63	0	2	0.7	0.20	0.45	0	1	2.0
Sketch	1.50	0.53	1	2	11.3	0.80	0.84	0	2	6.2
Building rapport	3.90	4.36	0	15	20.5	2.20	0.55	1	3	23.0
Negative behaviours	7.40	3.84	2	14	45.3	6.4	4.88	3	15	54.5
Re-asking a question	0.70	0.95	0	3	4.2	0.40	0.55	0	1	4.8
Multiple questions	2.10	1.73	0	5	14.4	2.00	2.83	0	7	14.3
Interrupting	1.10	1.10	0	3	6.9	1.00	1.41	0	3	7.7
Distractions	1.20	6.01	0	5	6.5	0.20	0.45	0	1	2.0
Suggestive question	2.30	2.26	0	8	13.4	2.80	1.79	1	5	25.7
Total behaviours	16.50	8.81	8	35	100	11.40	7.34	5	24	100

	Individual interview					Collaborative interview
Type	M	SD	Min	Max	% of total	M	SD	Min	Max	% of total
Open question	19.30	8.49	8	34	14.3	16.20	12.03	6	37	22.7
Closed question	22.50	14.46	8	52	16.0	11.40	11.28	2	31	12.7
Yes/no question	23.20	8.57	9	37	18.3	7.80	5.59	3	17	10.0
Multiple-choice question	3.90	1.66	1	6	3.0	1.20	1.30	0	3	1.9
Clarifying question	73.60	43.22	25	134	48.2	38.60	36.21	6	100	43.3
Questions about inconsistencies	0.40	0.70	0	2	0.3	2.00	1.58	0	4	4.5
Checking with other witness	0.00	0.00	0	0	0.0	3.60	2.30	2	7	5.0
Total question type	142.90	54.27	82	249	100	80.80	65.00	32	195	100
Positive behaviours	9.10	6.01	3	24	54.7	5.00	2.55	2	9	45.5
Option for free recall	0.30	0.68	0	2	1.7	0.20	0.45	0	1	0.8
Asking for details	0.60	0.70	0	2	3.1	0.40	0.55	0	1	3.3
‘Don’t know’ option	2.60	1.58	0	5	17.3	1.00	0.71	0	2	9.3
Context reinstatement	0.00	0.00	0	0	0.0	0.20	0.45	0	1	0.8
Visualization	0.20	0.63	0	2	0.7	0.20	0.45	0	1	2.0
Sketch	1.50	0.53	1	2	11.3	0.80	0.84	0	2	6.2
Building rapport	3.90	4.36	0	15	20.5	2.20	0.55	1	3	23.0
Negative behaviours	7.40	3.84	2	14	45.3	6.4	4.88	3	15	54.5
Re-asking a question	0.70	0.95	0	3	4.2	0.40	0.55	0	1	4.8
Multiple questions	2.10	1.73	0	5	14.4	2.00	2.83	0	7	14.3
Interrupting	1.10	1.10	0	3	6.9	1.00	1.41	0	3	7.7
Distractions	1.20	6.01	0	5	6.5	0.20	0.45	0	1	2.0
Suggestive question	2.30	2.26	0	8	13.4	2.80	1.79	1	5	25.7
Total behaviours	16.50	8.81	8	35	100	11.40	7.34	5	24	100

Source: Created by authors

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