Provjera pouzdanosti i valjanosti mjerenja zadovoljstva životom jednom česticom

master's thesis

• Title (english): Assessing the reliability and the validity of single-item life satisfaction measure
• Author: Ivona Mihaljević
• Mentor: Nataša Jokić-Begić (mentor)
• Committee member: Aleksandra Huić (predsjednik povjerenstva)
• Committee member: Nataša Jokić-Begić (član povjerenstva)
• Committee member: Una Mikac (član povjerenstva)
• Granter: University of Zagreb; Faculty of Humanities and Social Sciences; (Department of Psychology); Zagreb
• Defense date and country: 2019-09-30, Croatia
• Scientific / art field, discipline and subdiscipline: SOCIAL SCIENCES; Psychology; General Psychology

Abstract

Generalno zadovoljstvo životom često je mjereno jednom česticom. Unatoč širokoj primjeni mjerenja zadovoljstva s jednom česticom njezine psihometrijske karakteristike su rijetko provjeravane. Dosadašnja istraživanja su pokazala da mjerenje zadovoljstva životom jednom česticom može biti opravdano s obzirom na valjanost i pouzdanost. Cilj ovog istraživanja je provjera pouzdanosti i valjanosti mjerenja zadovoljstva životom s jednom česticom uspoređujući mjerenje s jednom česticom sa Skalom zadovoljstva životom (SZŽ). Istraživanje je provedeno na prigodnom uzorku studenata i studentica (N=687). Pouzdanost mjerenja zadovoljstva životom jednom česticom procijenjena je dvjema metodama procjene. Obje metode sugeriraju zadovoljavajuću pouzdanost; .64 korištenjem formule za korekciju zbog atenuacije i .7 korištenjem faktorske analize. Valjanost mjerenja zadovoljstva životom jednom česticom procijenjena je na tri načina. Dobiveni rezultati idu u prilog valjanosti mjerenja zadovoljstva životom jednom česticom. Korelacija između mjere s jednom česticom i SZŽ iznosi .702. Dobivena je statistički neznačajna razliku u povezanosti dviju mjera zadovoljstva životom s mjerom opće psihološke uznemirenosti te obje mjere ostvaruju umjerenu veličinu povezanosti s mjerom opće psihološke uznemirenosti. Dobivena je neznačajna rodna razlika u zadovoljstvu životom mjerenom jednom česticom i značajna rodna razlika u zadovoljstvu života mjerenog SZŽ prema kojoj su žene zadovoljnije životom od muškaraca, a dobivena veličina učinka roda je mala.

Abstract (english)

General satisfaction with life is often measured using single-item measure. Despite widespread use of single-item life satisfaction measure its psychometric properties have been rarely examined. Previous studies showed that single-item measure of satisfaction with life could be sufficient in terms of validity and reliability. The aim of this study was to assess the reliability and validity of single-item life satisfaction measure by comparing single-item measure to the Satisfaction with Life Scale (SWLS). Testing was conducted on a convenient sample of college students (N=687). Reliability of the single-item life satisfaction measure was estimated using two methods of estimation. Both methods suggested adequate reliability; .64 using the correction for attenuation formula and .7 using the factor analytic method. Validity of the single-item life satisfaction measure was estimated in three ways. The result provide support for the validity of single-item life satisfaction measure. Correlation between single-item measure and SWLS was .702. There were no significant differences in correlations patterns of two life satisfaction measures with the measure of general psychological distress and both measures show moderate correlation with the measure of general psychological distress. There were no significant gender differences when life satisfaction was measured by single-item and gender difference was significant when life satisfaction was measured by the SWLS according to which women are more satisfied with life than men and the effect size of gender is small.

• Keywords: zadovoljstvo životom; mjere s jednom česticom; pouzdanost; valjanost
• Keywords (english): life satisfaction; single-item measures; reliability; validity
• Language: croatian
• URN:NBN: urn:nbn:hr:131:579953
• Study programme: Title: Psychology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra psihologije (magistar/magistra psihologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2019-10-28 10:03:44