Dopolnjen MTMM merski model, ki sta ga zasnovala Saris in Andrews (1991), je bil uporabljen za ocenjevanje merske kakovosti štirih dimenzij socialne opore zato, ker lahko z njim ocenimo veljavnost, zanesljivost in učinek metode za vsako spremenljivko posebej. Na osnovi teoretičnih in empiričnih spoznanj so bili oblikovani štirje omrežni generatorji za merjenje teoretično utemeljenih dimenzij socialne opore. Vsebina omrežnih generatorjev za merjenje materialne, informacijske in emocionalne opore ter druženja je bila prilagojena značilnostim eksperimentalnih skupin - osmim razredom tretjega letnika gimnazije Bežigrad v Ljubljani. Zasnovan je bli kompleksen eksperimentalni načrt za iskanje dejavnikov, ki vplivajo na kakovost merjenja socialne opore z anketnim vprašalnikom. Eksperimentalni načrt vsebuje tako značilnosti merskega instrumenta, kakor tudi značilnosti dopolnjenega MTMM modela, ki lahko vplivajo na ocene zanesljivosti, veljavnosti in učinka metod, katere so raziskovalci kakovosti podatkov, pridobljenih z anketo, že spoznali za pomembne. V eksperimentalnem načrtu so bile vključene štiri različne merske lestvice (binarna lestvica, pet stopenjska ordinalna lestvica z označenimi ekstremi, pet stopenjska ordinalna lestvica z vsemi označenimi vrednostmi in ocenjevanje z dolžino črte), dve tehniki zbiranja podatkov (prepoznavanje s seznama in naštevanje po spominu), dajanje in prejemanje socialne opore (osnovna vprašanja - sprejemanje in recipročna vprašanja - dajanje opore) ter čas med zaporednimi ponovitvami meritev (20 minut ali en teden).
Among several approaches to evaluating measurement quality, the true score MTMM model proposed by Saris and Andrews (1991) was selected, owing to its ability to estimate reliability, validity and method effect of each variable seperately. On the basis of theoretical and empirical findings, four netowork generators were designed to measure four theoretically firmly established social support dimensions. The contest of network generators measuring social companionship and material, informational, and emotional support exchange were adjusted to the characteristics of the experimental groups - eight third-year classes in Gimnazija Bežigrad in Ljubljana. A complex experimental design to study the effects of measurement instruments on the measurement quality was proposed. All the variables included in the experimental design were previously found to affect measurement quality either by survey methodologists or by social network methodologists. Experimental variations included the provision of four response scales (a binary scale, a five point ordinal scale with labeled extreme values, a five point ordinal scale with labeled all values and a line drawing scale), two data collection techniques (recognition and a free recall), two directions of support exchange (original and reversed questions) and varying elapsed times between repeated measurements (20 minutes or one week).
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