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Computer-assisted Personal Interviewing
Computer-assisted personal interviewing (CAPI) is an interviewing technique in which the respondent or interviewer uses an electronic device to answer the questions. It is similar to computer-assisted telephone interviewing, except that the interview takes place in person instead of over the telephone. This method is usually preferred over a telephone interview when the questionnaire is long and complex. It has been classified as a personal interviewing technique because an interviewer is usually present to serve as a host and to guide the respondent. If no interviewer is present, the term ''Computer-Assisted Self Interviewing (CASI)'' may be used. An example of a situation in which CAPI is used as the method of data collection is the British Crime Survey. Characteristics of this interviewing technique are: * Either the respondent or an interviewer operates a device (this could be a laptop, a tablet or a smartphone) and answers a questionnaire. * The questionnaire is an applicatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Computer-assisted Telephone Interviewing
Computer-assisted telephone interviewing (CATI) is a telephone surveying technique in which the interviewer follows a script provided by a software application. It is a structured system of microdata collection by telephone that speeds up the collection and editing of microdata and also permits the interviewer to educate the respondents on the importance of timely and accurate data. The software is able to customize the flow of the questionnaire based on the answers provided, as well as information already known about the participant. It is used in B2B services and corporate sales. CATI may function in the following manner: * A computerized questionnaire is administered to respondents over the telephone. * The interviewer sits in front of a computer screen. * Upon command, the computer dials the telephone number to be called. * When contact is made, the interviewer reads the questions posed on the computer screen and records the respondent's answers directly into the computer. * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Crime Survey
The Crime Survey for England and Wales (previously called the British Crime Survey) is a systematic victim study, currently carried out by Kantar Public (formally known as BMRB Ltd) on behalf of the Office for National Statistics (ONS). Curated by the UK Data Service, it can be accessed for research on their website: https://ukdataservice.ac.uk. The survey seeks to measure the amount of crime in England and Wales by asking around 50,000 people aged 16 and over (as of January 2009), living in private households, about the crimes they have experienced in the last year. From January 2009, 4,000 interviews were also conducted each year with children 10–15 years old, although the resulting statistics remain experimental. The survey is comparable to the National Crime Victimization Survey conducted in the United States. Initially the survey covered England, Wales and Scotland and was called the British Crime Survey but now the survey is restricted to England and Wales. The Scottish Gov ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PSPP
PSPP is a free software application for analysis of sampled data, intended as a free alternative for IBM SPSS Statistics. It has a graphical user interface and conventional command-line interface. It is written in C and uses GNU Scientific Library for its mathematical routines. The name has "no official acronymic expansion". Features This software provides a comprehensive set of capabilities including frequencies, cross-tabs comparison of means (t-tests and one-way ANOVA), linear regression, logistic regression, reliability (Cronbach's alpha, not failure or Weibull), and re-ordering data, non-parametric tests, factor analysis, cluster analysis, principal components analysis, chi-square analysis and more. At the user's choice, statistical output and graphics are available in ASCII, PDF, PostScript, SVG or HTML formats. A range of statistical graphs can be produced, such as histograms, pie-charts, scree plots, and np-charts. PSPP can import Gnumeric and OpenDocument spreadshe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DAP (software)
Dap is a statistics and graphics program based on the C programming language that performs data management, analysis, and C-style graphical visualization tasks without requiring complex syntax. Its name is an acronym for Data Analysis and Presentation. Dap was written to be a free replacement for SAS, but users are assumed to have a basic familiarity with the C programming language in order to permit greater flexibility. It has been designed to be used on large data sets and is primarily used in statistical consulting practices. However, even with its clear benefits, Dap hasn't been updated since 2014 and hasn't seen widespread use when compared to other statistical analysis programs. Features Dap is a command line driven program. Below are various features that DAP can perform. DAP can compute means and percentiles, correlation, & ANOVA from data sets. This includes Unbalanced as well as Crossed, Nested ANOVA. It can also be used to create scatterplots, line graphs and hi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Questionnaire
A questionnaire is a research Research is "creativity, creative and systematic work undertaken to increase the stock of knowledge". It involves the collection, organization and analysis of evidence to increase understanding of a topic, characterized by a particular att ... instrument that consists of a set of questions (or other types of prompts) for the purpose of gathering information from respondents through survey or statistical study. A research questionnaire is typically a mix of close-ended questions and open-ended questions. Open-ended, long-term questions offer the respondent the ability to elaborate on their thoughts. The Research questionnaire was developed by the Statistical Society of London in 1838. Although questionnaires are often designed for statistics, statistical analysis of the responses, this is not always the case. Questionnaires have advantages over some other types of statistical survey, surveys in that they are cheap, do not require as much eff ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Respondent
{{unreferenced, date=February 2012 A respondent is a person who is called upon to issue a response to a communication made by another. The term is used in legal contexts, in survey methodology, and in psychological conditioning. Legal usage In legal usage, this specifically refers to the defendant in a legal proceeding commenced by a petition, or to an appellee, or the opposing party, in an appeal of a decision by an initial fact-finder. In the United States Senate, the two sides in an impeachment trial are called the management and the respondent. Survey and psychology usage In psychology, respondent conditioning is a synonym for classical conditioning or Pavlovian conditioning. Respondent behavior specifically refers to the behavior consistently elicited by a reflexive or classically conditioned stimulus. In population survey, a respondent is a person replying with answers to a survey. Depending on the survey questions and context, respondent answers may represent themse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Standardization
Standardization or standardisation is the process of implementing and developing technical standards based on the consensus of different parties that include firms, users, interest groups, standards organizations and governments. Standardization can help maximize compatibility, interoperability, safety, repeatability, or quality. It can also facilitate a normalization of formerly custom processes. In social sciences, including economics, the idea of ''standardization'' is close to the solution for a coordination problem, a situation in which all parties can realize mutual gains, but only by making mutually consistent decisions. History Early examples Standard weights and measures were developed by the Indus Valley civilization.Iwata, Shigeo (2008), "Weights and Measures in the Indus Valley", ''Encyclopaedia of the History of Science, Technology, and Medicine in Non-Western Cultures (2nd edition)'' edited by Helaine Selin, pp. 2254–2255, Springer, . The centralized we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Self-administration
Self-administration is, in its medical sense, the process of a subject administering a pharmacological substance to themself. A clinical example of this is the subcutaneous "self-injection" of insulin by a diabetic patient. In animal experimentation, self-administration is a form of operant conditioning where the reward is a drug. This drug can be administered remotely through an implanted intravenous line or an intracerebroventricular injection. Self-administration of putatively addictive drugs is considered one of the most valid experimental models to investigate drug-seeking and drug-taking behavior. The higher the frequency with which a test animal emits the operant behavior, the more rewarding (and addictive), the test substance is considered. Self-administration of addictive drugs has been studied using humans, non-human primates, mice, invertebrates such as ants, and, most commonly, rats. Self-administration of heroin and cocaine is used to screen drugs for possible eff ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Opinion Poll
An opinion poll, often simply referred to as a survey or a poll (although strictly a poll is an actual election) is a human research survey of public opinion from a particular sample. Opinion polls are usually designed to represent the opinions of a population by conducting a series of questions and then extrapolating generalities in ratio or within confidence intervals. A person who conducts polls is referred to as a pollster. History The first known example of an opinion poll was a tallies of voter preferences reported on Telegram Messenger to the 1824 presidential election, showing Andrew Jackson leading John Quincy Adams by 335 votes to 169 in the contest for the United States Presidency. Since Jackson won the popular vote in that state and the whole country, such straw votes gradually became more popular, but they remained local, usually citywide phenomena. In 1916, ''The Literary Digest'' embarked on a national survey (partly as a circulation-raising exercise) and correc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Data Quality
Data quality refers to the state of qualitative or quantitative pieces of information. There are many definitions of data quality, but data is generally considered high quality if it is "fit for tsintended uses in operations, decision making and planning". Moreover, data is deemed of high quality if it correctly represents the real-world construct to which it refers. Furthermore, apart from these definitions, as the number of data sources increases, the question of internal data consistency becomes significant, regardless of fitness for use for any particular external purpose. People's views on data quality can often be in disagreement, even when discussing the same set of data used for the same purpose. When this is the case, data governance is used to form agreed upon definitions and standards for data quality. In such cases, data cleansing, including standardization, may be required in order to ensure data quality. Definitions Defining data quality is difficult due to the ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Computer-assisted Web Interviewing
Computer-assisted web interviewing (CAWI) is an Internet surveying technique in which the interviewee follows a script provided in a website. The questionnaires are made in a program for creating web interviews. The program allows for the questionnaire to contain pictures, audio and video clips, links to different web pages, etc. The website is able to customize the flow of the questionnaire based on the answers provided, as well as information already known about the participant. It is considered to be a cheaper way of surveying since one doesn't need to use people to hold surveys unlike computer-assisted telephone interviewing. With the increasing use of the Internet, online questionnaires have become a popular way of collecting information. The design of an online questionnaire has a dramatic effect on the quality of data gathered. There are many factors in designing an online questionnaire; guidelines, available question formats, administration, quality and ethic issues should b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
