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was uma of Abo-1 ruppat wim ar the* cmnw were inuit6d to
-Pate.
&my.
In gamsrif~ infwmalbn, eihf the intavh or questionnaire (if designed
popdy) -Id shw basically the sam. mu&. HowcNer, a sky IS quicker
and -per whie an intcnview pmvides ticharand m r infiormation (Evans.
tees). Forthis raaaon. thia study uMii the survey to ensure round and
dePaiplive mulls. Also the sample survey has bwn the moat frequently used
memd in needs -men( moafch (Eeiu&z, 1988b).
f he s u m were dwebped with (he g u m and reeommendatiars
made by Cox (199s) and SaIanl6 Dillman (ls94). Each survey consisted of
ques~onr which were OM&, miding the par(icipen~~ tha oppciiunihl to
qwss thsir opinim and mnms in a mreslrMve environmenl (Salant 6
Dillmn. 1994): and forssd chdss items, in which ptiib napmded to by
sekting lhdr mpmw fmn a set of fixed aiiemahs (Johnscn 6 Baclhm.
1~5). Pmiwtar questbxswere asked to both gru+ sinca the same questions
&& to hn w more d i i groups of mswmmts muld reveel sitndarit'ks as
wall aa Mlm diimncas in parcaplions of naeded rervicas (EefkmW 199Bb).
In l h e ~ ~ o r y ~ RIpondents ~ were likely , to &usa based on
Ihelmg IistofcWixs. Fuexampk mBil sufveys
ralsclions whila in taleOhone and fem4o.w sum my chmse !ast (Salant 6
atman, 1994). The survey instrumenta used in thir study wen, dasigmd to