Monday, January 28, 2008

Solution électric Box Level 19

Datenerhebungsmethoden II

data collection methods II

Block I

first What forms of written survey it?

without the presence of the interviewer:

- postal survey

- Questionnaire deliver in person and pick them up (drop-off)

- CSAQ: computer-assisted-self-administrated questionnaire-

in the presence Interviewer

- group interviews (as an aid in oral interviews on sensitive issues, any written questions will be provided)

- Interview

second What are some advantages, the mail survey compared with oral inquiry may have. What are the drawbacks?

advantages

- Cost

- low survey effort

- no influence by interviewers (but no support)

- self-determined fill

- Anonymity

- Accessibility

Disadvantages:

- high default rates

- no control of the situation

- length limit

- interviewers can not help compulsion to self-explication

3. Skizzieren Sie ein mögliches Design für Datenerhebung einer schriftlichen Befragung!

Möglich wäre ein Zusenden des Fragebogens, der nach den Grundsätzen der Total Design Method erstellt wurde, vielleicht verbunden mit Aussicht auf eine Belohung (keine Werbegeschenke, interessant vor allem für höhere Schichten oder Firmen ist die Aussicht auf das Zustellen der Auswertung der Befragung). Es sollte mit dem Fragebogen ein Brief mitgeschickt werden, in dem Fragen nach Anonymität, Auswertung, Untersuchungszielen, Auftraggeber, Instruktionen Returning to be clarified and the like (FAQ;? sales trick or publicity stunt What does this have to do with me and my problems Is it worth it are difficult questions (SHE)?). After a week you should send a reminder to you for completing the questionnaire. After three weeks, another reminder letter with a new questionnaire to those without reflux. After seven weeks, then still a new questionnaire by certified mail to all other persons who have no questionnaire returned.

4th What is the total design method?

The inclusion of all external factors in the design of the questionnaire to the stamp. A postal survey should make a professional impression. The letter should be signed personally. One should use large paper. The questionnaires should be clear and self explanatory. Additionally, they should produce the respondents have a good cost-benefit sense.

Block II

first What are the advantages of telephone surveys?

- cheap and faster than oral interviews

- less suspicion when access

- simple random sampling

- researchers closer to the field

- no filter error, no error in the Verkodung, consistency checks during the interview

second How to draw a random telephone sample? What contrast is random digit dialing?

random:

- Phone Book overdraft

Random digit dialing: all numbers chosen randomly

- difficult in Germany wg. Number structure

- that mod. RDD:

- random selections of local and cleanup

- random selection is not empty blocks

- RDD within the non-empty blocks

3 . What is Top Load Digit, what are its advantages and disadvantages?

- last digit is randomly selected

- advantage: great hit rate, cost-and time-saving

- disadvantage: unknown inclusion probabilities

4. Warum sind Telefonbuchstichproben nicht wirklich Zufallsauswahlen?

Nicht jeder ist in Telefonbüchern eingetragen (systematische Ausfälle?).

5. Was ist ein CATI? Welche Funktionen hat es?

- computer assisted telephone interview

- Funktionen: automatische Filterführung, formale Tests for valid response levels Pausibilitätstest during the interview, sequence effects can be minimized, data collection, interview duration decreases

6th What is a CSAQ?

computer-assisted self-administrated questionnaire (eg, at trade shows, pedestrian surveys, exhibition visitors)

7th What information should an interviewer at the beginning of a telephone give interviews?

- Identität des Anrufenden, Namen nennen

- Auftraggeber

- Name der Studie

- Grund / warum ich?

- eventuelle Belohnung angeben

- ( Anonymität / Datenschutz ansprechen)

- Dauer der Befragung

8. Was versteht man unter CAPI und was ist CSAQ?

CAPI: computer assisted personal interview

Block III

first What is an online research?

research on the web.

reactive methods:

- questionnaire survey on the Internet, such as email, the web, in newsgroups, in chat rooms, mailing lists etc

- online interviews (rarely)

non-reactive:

- would itself have a "reaction of a people", eg log file analysis, observations, content analysis

second Describe the methodological problem that the online survey entails ?

There is no certainty as to how the respective sample composed as

first unknown population and 2 unknown self-selection process, thus generalizations to the target population is not possible

third What is self-selection in an online survey?

  1. stage: not all web users take a call about the survey at all true ("Awareness" factors)
  2. level: survey attention of users depending on subject and personal interests ("intention to participate Factors ")
  3. level: so-called clicker (participation decision-relevant Faktoren)
  4. Stufe: Teilnehmer (aber einige steigen noch aus, sog. „Drop-Out-Phänomene“)
  5. Stufe: Vollständige Teilnahme

4. Vorteile und Nachteile von Online-Forschung.

Vorteile

Nachteile

kurze Feldzeiten

notice, issue of advertising and spamming

rapid availability

coverage bias (low coverage)

complex survey design (eg by filter operator)

unknown population, no clear lists for sampling

data on consultation process (eg time aspect in general and for individual questions)

self-selection

Low cost (for Forscher_innen)

multiple participation (better ., competitions)

automatic processing of data

ENTERTAINMENT


(Un-)Sicherhit im Internet / Datenschutz / Anonymität

andere Herausforderungen der Online Forschung:

- neuartiges technisches know-how erforderlich

- stärkere Bedeutung von Präsentation, Design und Layout

- Datenqualität (Zustand des Befragten, Umgebung, Anwesenheit Dritter etc.)

5. Welche reaktiven Formen der Online-Befragung gibt es?

- Fragebogenuntersuchung im Internet, z.B. per Email, im Web, in Newsgroups, in Chats, Mailinglisten etc

- online interviews (rarely)

Saturday, January 19, 2008

Honeywell Chronotherm 4 Plus

Datenerhebungsmethoden

data collection methods

Block I

first What are the three basic data collection methods?

interview, observation, content analysis

second Standardized survey methods by which properties are marked?

a) general

- external conditions must be identical

- identical question wording

- identical sequence

- usually use predefined answers

- usually used intensity scales

b) in relation to oral questions

- all of the above

- requires training of interviewers (single, neutral behavior)

- an interviewer should carry out more than 10 interviews

third Describe different forms of non-standardized collection procedures.

I) The interview guide

- In the Guide of those aspects of the topic that will come up, in bullet points oder Fragevorschlägen zusammengestellt

- Die Reihenfolge und deren genauere Formulierung ist i. d. R. dem Interviewer freigestellt

- die Befragten sollen möglichst ausführlich antworten; von Ihnen angesprochene Aspekte sollen durch nachfragen vertieft werden

- des Weiteren enthalten sind Zusatzfragen, Eventualfragen und Substantive issues

II) The narrative interview

- on the detailed narration of the respondents applied

- it starts with telling the life story of a transition in the life history or an important event (Tell phase)

- this Phase is not the interviewer interrupted

- resulting gaps will be resolved in the use phase by asking the interviewer

- follows this summary and evaluation of the narrative by the respondent

- while the interviewer tries to find explanations for narrated by and utilization encouraging of "how-questions" and "why" questions the reasoning (recognition phase)

III), the expert interview

- it should information about an institution / a social field are collected, of which the interviewer knows little

4th In a nationwide, representative survey of 2000 to be implemented Interviews. How many interviewers would you use it?

2000/10 = 200 (10 interviews per interviewer, ie 200 interviewers in 2000 interviews)

Block II

first What types of information that can be detected with issues in oral or written surveys, you know?

- demographics

- behavior

- settings / ratings

- knowledge / factual knowledge to specific situations

- beliefs

second What problems do you have to behavioral questions ? Expected

- behavioral questions relating to the conduct of the respondent à frequency, duration, type of actions in the past

- it makes sense to prioritize the current action

- forward-looking questions are difficult / Rather question the opinion

- memory problem : the predetermined response categories affect the stronger effect on the response to a behavioral question, the less well the retrieved behavior memory is stored, bad, little or unsaved behavior forces the respondent to estimate

third Enter a detailed example of the use of a rating process in an oral survey.

rating process is, the assessment (English: Rating) of features, in general, on a scale by which the intensity (and not only the presence or absence) of the expression of these features included should.

example: question about satisfaction with Merkel's leadership style. Options in school grades 1-6.

4th Name the advantages and disadvantages of open and closed questions. When are both?

closed questions

questions

benefits

· easier to answer

· comparability due to the uniformity

· by the individual response can you get good insights and lots of information

disadvantages

· substantive points can not figure out

· are pre-formulated response categories and not necessarily with the statements that the Respondents call themselves

· answers would be difficult to compare

· effort for evaluation (cost, time)

use when?

· Yes / No questions

· alternative issues

· choice: Rating or ranking

· questions with multiple answers

· no choice answers

· be used if you want to capture not classified a scale variable, or any answers does not know

· exploratory research, when measuring spontaneous response behavior or verbalization

· expert interviews

5th What is meant by reciprocity of the workload in terms of open and closed questions?

of work required for qualitative and quantitative surveys is about the same size (open questions analysis very challenging, with closed questions, the question of conception).

The choice of method depends primarily on the research problem under investigation, both methods have their place. Due to the reciprocity of the work involved is in any case with a labor savings expected.

6th Discuss with respect to the measurement of intensities with standard setting issues, the advantages and disadvantages.

- many or as few categories of response?

o mean more choice answers are usually differentiated responses, and thus higher accuracy.

o man kann allerdings der Gefahr erliegen, die Unterschiede zwischen den einzelnen Antwortvorgaben so gering werden zu lassen, dass diese für den Befragten nicht mehr deutlich zu unterscheiden sind.

o es kann dazu kommen, dass der Befragte verwirrt und unsicher irgendwelche Abschätzungen vornimmt.

- grade oder ungerade Anzahl von Antwortkategorien?

o tendency toward the center - in disguise "non-white category

o some people need the Center for their happiness

7th Name 12 important rules for the formulation of questions in questionnaires.

- short questions

- no strangers

- not abstract concepts

- not loaded terms

- no leading questions

- no hypothetical questions

- only a matter for each question

- no double negation

- positive and negative alternatives mention

- mention all possible answers

- usually do-not-category provide (Ausnahmen!!)

- no grading terms in the question text

- response requirements must match the question

8th Ask for the "reasons" settings will give usually not much. What do you have to avoid such questions, yet to obtain information about reasons?

- indirectly ask

o has what motivates them?

o What do you like it (not)?

9th What a double barreled or double-barreled questions? What must one do to avoid them?

issues, leading to two issues with it. Better division into two questions (one-dimensionality).

10th What response categories (even odd /) there are and how they are differentiated?

- even / odd questions: Number of answers to

- notified vs. untitled requirements

- vs. numerical. verbal designation: eg, school grades vs. "Somewhat satisfied", rather "unhappy", etc.

Block III

first What can you say about the introduction of an oral interview question? What two basic Positions are there?

- introductory questions should not require long deliberation, warm up

- it should be on issues that are more likely to answer yes to

- rather characteristic or behavior issues, no questions that apply only to a subpopulation

- two basic positions:

· opening question should be neutral, serve to set the mood, be simple, access to interview facilitate

· First question should be thematically relevant not to be too technical, but the content of the study

second How would you deal with sensitive issues in an oral interview?

- place not at the beginning of the interview, but as at the end (or at the end of the complex issues), since the dropout strongly by asking tricky questions increases. The questions should not be pulled completely out of context.

- use technical tricks, such as encoding the response in numbers etc.

- mitigate or minimize by appropriate formulation (tax evasion, "the tax office hit on the ear")

- appeal to Idler effect

- surprise attack by very direct questions

- hoppers: custom general questions accessible / sensitive

third Explain what is a filter in a standardized interview.

- filter issues question blocks are laid on, to be usefully answered only by a subset of respondents.

- Bei der Filterführung ist darauf zu achten, dass sie für den Interviewer gut ersichtlich ist.

- z.B. Fragen zum Verhalten in der Ehe die Frage vorschalten, od der Befragte überhaupt verheiratet ist "...wenn Nein, weiter mit Frage 83..."

4. Skizzieren Sie ein mögliches Layout für eine Seite eines standardisierten mündlichen Fragebogens!

- approximate duration

- short description of the principal

- full question text, short and clear, easily understandable terms

- Information for survey assistance, requests, Clarifications

- clearly visible filter guide, not a long leaves the interviewer

- serial number of the arc

- interviewer questions about the course of the interview

5th What survey tools and what do you know?

survey helps to facilitate answering the questions, anonymity assured, break up the situation, boredom counteract

Examples:

- Lists (Number) with response alternatives

- Card

- envelope for anonymous responses

- encrypted list of categories of sensitive issues

- schemes to the response alternatives

visualize 6th What questions would the interviewer usually after the interview (without the respondent) to answer yourself?

The interviewer fills out a contact protocol:

- interview duration

- interview situation (interference, others present people)

- overall credibility of the respondents

- Aufmerksamkeit des Befragten

- Schwierigkeiten/ Unglaubwürdigkeiten bei einzelnen/speziellen Fragen

7. Nennen Sie einige wichtige Ziele einer Interviewschulung.

- möglichst uniforme Interviewer

- minimize interviewer effects

- increase reliability of the interviewer

- possible about the entire study provide

- interviewer identify with the project

- on effects of response distortion draw attention to the methods used to prevent the hand give

- explain each question carefully, the interviewer has to his cause, be sure

8th What are the possible sources of response bias in interviews (8-10 examples).

- refusal

- white non-answers

- Non-attitudes (something is given, because no white- no category exists)

- social desirability (answer, believes the respondent that the interviewer wants to hear it)

- interviewer effects (reaction of respondents to the person of the interviewer)

- question effects (wording)

- dance sequence effects

- presence effects (especially on sensitive issues)

- principal effects (attitude of the respondent / prejudice to the company etc)

- scaling effects

- Akquieszenz

9th What is Akquieszenz?

The tendency to say yes, especially in interviews, without much thought

10th Explain what is meant by the tendency to "social stability" and what you can do about it?

questions are answered socially desirable by need for social recognition or as a situation-specific response to the data collection (Konsequenzbefürchtung) eg tax evasion