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Digitale medier: formidling og design

Digitale medier: formidling og design. 22. februar 2007 Kvantitativ metode. Program. 10-12 Demonstration af Technorati tags + favs med opgaveemner Kvantitativ metode Kvalitativ metode 13-14 Øvelse: Spørgeskema 14 Kage 14.45 Fremlæggelse af gruppearbejde: Websurvey Spørgeskema.

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Digitale medier: formidling og design

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  1. Digitale medier: formidling og design 22. februar 2007 Kvantitativ metode

  2. Program • 10-12 • Demonstration af Technorati tags + favs med opgaveemner • Kvantitativ metode • Kvalitativ metode • 13-14 • Øvelse: Spørgeskema • 14 • Kage • 14.45 • Fremlæggelse af gruppearbejde: • Websurvey • Spørgeskema

  3. Reglerne for den obligatoriske øvelse eksamensemne • Beskrivelsen skal have en meningsfuld overskrift (altså ikke "Eksamensemne" men feks. "Mobning på arto.dk") • Den skal være på ca 300 ord • I kan opgive flere mulige emner i samme post • I jeres eksamensemne-post skal indgå det link til Technorati, som er beskrevet i min Technorati-post på gruppebloggen • Hvis jeres posting ikke overholder dette, kan I ikke gå til eksamen • Hvis det alt sammen bliver lavet korrekt, vil det ende med at være en liste over eksamensemner, som kan ses på Technorati via dette link: http://technorati.com/tag/DMFD_F2007

  4. Alternativer til spørgeskemaer/ interview i medievidenskab • Tekstanalyse • Laboratorieforsøg • Deltagende observation • Action research • Etc.

  5. Quantitative research ~ survey • operationalization • kan vi undersøge spørgsmålet, så vi får valide svar? • generalization • hvordan sikrer vi, at en undersøgelse af et mindre antal tilfælde giver et korrekt billede af det totale antal? • inferential analysis • hvordan finder vi svarene?

  6. Fremgangsmåde • state the research question • identify the variables • define the variables • how can the variables be measured? • specify the independent and dependent variables • this is the causal relation we wish to establish

  7. Fremgangsmåde • choose the level of measurement • nominal • interval • ordinal • ratio • design the sample • total population • sampling frame • sampling method • non-response • map and analyse the data

  8. Fremgangsmåde • model the causal relationship • evaluate the causal relationship • is there a plausible relation? • are there other variables that might influence all variables in the sample (intervening variables)? • publish

  9. 1. state the research question • research review • firsthand scoping • establish the possible states of the causal relation: • null hypothesis • alternate hypothesis • must be a testable condition

  10. 2 and 3. Identifying and defining variables • construct validity • eks. socialgrupper • verbal responses → numbers → analysis → verbal results

  11. Socialgrupper (kilde: SFI) Socialgruppe IStore selvstændige: Selvstændige i by-erhverv med lang, videregående uddannelse.Selvstændige i by-erhverv med 21 ansatte og derover.Godsejere. (proprietærer)Topfunktionærer: Funktionærer med lang, videregående uddannelse.Funktionærer med 51 underordnede og derover.Socialgruppe IIStørre selvstændige: Selvstændige i byerhverv med mellemlang, videregående uddannelseSelvstændige i byerhverv med 6-20 ansatte.Højere Funktionærer med 11-50 underordnede. Funktionærer Funktionærer med MVU Socialgruppe III: Mindre selvstændigei by-erhverv: Selvstændige i byerhverv med 0-5 ansatteMindre selvstændigei landbrug: GårdejereMellem-funktionærer: Funktionærer med 1-10 underordnedeSocialgruppe IV: HusmændUnderordnedeFunktionærer: Funktionærer med 0 underordnedeFaglærte arbejdere Socialgruppe VIkke-faglærte arbejdereUdenfor socialgruppeinddelingen: De der aldrig har haft arbejde

  12. Specifying the independent and dependent variables • independent variable • årsagsvariablen • demografiske data (alder, køn, etnisk oprindelse) hører som regel hjemme her • dependent variable • virkningsvariablen

  13. Dansk: • nominelle/skale-rede variable • ordinalskala • intervalskala • forholdsskala 5. Choosing the level of measurement • nominal variables • categories, e.g., male/female, nationality • scaled variables • ordinal: ordered but differences not important, e.g., restaurant ratings, Likert scale • interval: ordered, constant scale, but no natural zero, e.g., temperature, dates • ratio: ordered, constant scale, natural zero, e.g., height, weight, age, length, income

  14. Likert scale • Usually five, seven, or nine points • Typical scale: • Strongly disagree • Disagree • Neither agree nor disagree • Agree • Strongly agree

  15. 6. Designing the sample • Target population ~ Sample frame • Sampling strategies • Non-probability sampling • Convenience sampling • Probability sampling • systematic random sample • stratified random sample • multi-stage stratified area sample • rules of substitution • Sample size

  16. 7. Mapping and analysing data • statistical tools • sample size • number of variables • level of measurement • for practical applications, computer software • SPSS • InStat • SigmaStat, etc. • data mining

  17. Basic patterning • central tendency • means • frequency • medians • dispersion of responses • variance • clusters • standard variation

  18. Standard statistics • Chi-square (hypothesis likelihood) • ANOVA (analysis of variance) • Correlation analysis

  19. 10. reporting findings • empirical, quantitative • validity and reliability • meaning and interpretation • relationship between concepts • generic format • introduction (including research review) • method • results • discussion

  20. Sample media use survey • Age in years • Sex • Place of residence (zip code) • Household income (50.000 DKK intervals) • Level of education (highest degree completed) • Current occupation: Student/Blue-collar/White-collar/Managerial/Other • When did you last (by your best recollection) use the following media: • Landline telephone • Mobile phone • Web • Television • Radio • SMS • Chat/Instant Messaging • E-mail • Newspaper • Cinema

  21. In you own estimate, how many _hours_ do you use the following media per week? • Landline telephone • Mobile phone • Web • Television • Radio • In your own estimate, how many _times_ do you use the following media per week? • SMS • Chat/Instant Messaging • E-mail • Newspaper • Cinema

  22. On a scale from 1 to 5, where 1 is of great importance and 5 is of little importance, how do you rate the following media? • Landline telephone • Mobile phone • Web • Television • Radio • SMS • Chat/Instant Messaging • E-mail • Newspaper • Cinema • Which other media do you use (and why)? • Other comments?

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