User contributions for Sga21
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28 November 2013
- 22:5622:56, 28 November 2013 diff hist +291 N Multivariate Techniques Created page with "{{Learning concept |Description=Statistical Techniques suitable for analyzing data when there two or more measurements on each element and the variables are analyzed simulta..." current
- 22:5322:53, 28 November 2013 diff hist +249 N Univariate Techniques Created page with "{{Learning concept |Description=Statistical techniques appropriate for analyzing data when there is a single measurement of each element in the sample, or there are several m..." current
- 22:5022:50, 28 November 2013 diff hist +145 N Missing Responses Created page with "{{Learning concept |Description=Values of a variable that are unknown because respondents did not provide unambiguous answers to the question. }}" current
- 22:4922:49, 28 November 2013 diff hist +297 N Consistency Checks Created page with "{{Learning concept |Description=A part of the data cleaning process that identifies data that are out of range, logically inconsistent, or have extreme values. Data with value..." current
- 22:4722:47, 28 November 2013 diff hist +116 N Data Cleaning Created page with "{{Learning concept |Description=Thorough and extensive checks for consistency and treatment of missing responses. }}" current
- 22:4622:46, 28 November 2013 diff hist +194 N Codebook Created page with "{{Learning concept |Description=A book containing coding instructions and the necessary information about variables in teh data set. |Wikipedia reference=http://en.wikipedia.o..." current
- 22:4522:45, 28 November 2013 diff hist +171 N Fixed-Field Codes Created page with "{{Learning concept |Description=A code in which the number of records for each respondent is the same and the same data appear in the same columns for all respondents. }}"
- 22:4422:44, 28 November 2013 diff hist +242 N Coding Created page with "{{Learning concept |Description=The assignment of a code to represent a specific response to a specific question along with the data record and column position that code will ..." current
- 22:4322:43, 28 November 2013 diff hist +202 N Editing Created page with "{{Learning concept |Description=A review of the questionnaires with the objective of increasing accuracy and precision of the collected data. |Wikipedia reference=http://en.wi..." current
- 22:4122:41, 28 November 2013 diff hist +368 N Data Preparation & Analysis Created page with "{{Topic |Learning Concepts=Editing, Coding, Fixed-field codes, Codebook, Data Cleaning, Consistency Checks, Missing Responses, Univariate Techniques, Multivariate Techniques,..."
- 22:3222:32, 28 November 2013 diff hist +111 N Double Sampling Created page with "{{Learning concept |Description=A sampling technique in which certain population elements are sampled twice. }}" current
- 22:3122:31, 28 November 2013 diff hist +266 N Sequential Sampling Created page with "{{Learning concept |Description=A probability sampling technique in which the population elements are sampled sequentially, data collection and analysis are done at each stage..." current
- 22:2922:29, 28 November 2013 diff hist +245 N Probability Proportionate to Size Sampling Created page with "{{Learning concept |Description=A selection method in which the clusters are selected with probability proportional to size and the probability of selecting a sampling unit in..."
- 22:2822:28, 28 November 2013 diff hist +188 N Area Sampling Created page with "{{Learning concept |Description=A common form of cluster sampling in which the clusters consist of geographic areas such as counties, housing tracts, blocks, or other area des..." current
- 22:2622:26, 28 November 2013 diff hist +476 N Cluster Sampling Created page with "{{Learning concept |Description=First, the target population is divided into mutually exclusive and collectively exhaustive sub populations called clusters. Then, a random sam..." current
- 22:2222:22, 28 November 2013 diff hist +290 N Stratified Sampling Created page with "{{Learning concept |Description=A probability sampling technique that uses a two step process to partition the population into sub populations, or strata. Elements are selecte..." current
- 22:1922:19, 28 November 2013 diff hist +278 N Systematic Sampling Created page with "{{Learning concept |Description=A probability sampling technique in which the sample is chosen by selecting a random starting point and then picking every ith element in succe..." current
- 22:1722:17, 28 November 2013 diff hist +358 N Simple Random Sampling Created page with "{{Learning concept |Description=A probability sampling technique in which each element in the population has a known and equal probability of selection. Every element is selec..." current
- 22:1522:15, 28 November 2013 diff hist +393 N Snowball Sampling Created page with "{{Learning concept |Description=A non probability sampling technique in which an initial group of respondents is selected randomly. Subsequent respondents are selected based o..." current
- 22:1222:12, 28 November 2013 diff hist +364 N Quota Sampling Created page with "{{Learning concept |Description=A non probability sampling technique that is a two stage restricted judgmental sampling. The first stage consists of developing control categor..." current
- 22:0922:09, 28 November 2013 diff hist +74 Non Probability Sampling No edit summary current
- 22:0922:09, 28 November 2013 diff hist +162 N Judgmental Sampling Created page with "{{Learning concept |Description=A form of convenience sampling in which the population elements are purposely selected based on the judgment of the researcher. }}" current
- 22:0822:08, 28 November 2013 diff hist +198 N Convenience Sampling Created page with "{{Learning concept |Description=A non probability sampling technique that attempts to obtain a sample of convenient elements. the selection of sampling units is left primarily..." current
- 22:0222:02, 28 November 2013 diff hist +162 N Probability Sampling Created page with "{{Learning concept |Description=A sampling procedure in which each element of the population has a fixed probabilistic chance of being selected for the sample. }}" current
- 22:0122:01, 28 November 2013 diff hist +161 N Non Probability Sampling Created page with "{{Learning concept |Description=Sampling techniques that do not use chance selection procedures. Rather, they rely on the personal judgment of the researcher. }}"
- 21:5921:59, 28 November 2013 diff hist +84 N Sample Size Created page with "{{Learning concept |Description=The number of elements to be included in a study. }}"
- 21:5921:59, 28 November 2013 diff hist +124 N Sampling Without Replacment Created page with "{{Learning concept |Description=A sampling technique in which an element cannot be included in the sample more than once. }}" current
- 21:5821:58, 28 November 2013 diff hist +121 N Sampling With Replacment Created page with "{{Learning concept |Description=A sampling technique in which an element can be included in the sample more than once. }}"
- 21:5721:57, 28 November 2013 diff hist +273 N Bayesian Approach Created page with "{{Learning concept |Description=A selection method in which the elements are selected sequentially. The Bayesian approach explicitly incorporates prior information about popul..." current
- 21:5521:55, 28 November 2013 diff hist +102 N Element Created page with "{{Learning concept |Description=An object that possesses the information sought by the researcher. }}" current
- 21:5421:54, 28 November 2013 diff hist +169 N Target Population Created page with "{{Learning concept |Description=The collection of elements or objects that possess the information sought by the researcher and about which inferences are to be made. }}" current
- 21:5321:53, 28 November 2013 diff hist +120 N Sample Created page with "{{Learning concept |Description=A subgroup of the elements of the population selected for participation in the study. }}"
- 21:5221:52, 28 November 2013 diff hist +164 N Census Created page with "{{Learning concept |Description=A complete enumeration of the elements of a population or study objects. |Wikipedia reference=http://en.wikipedia.org/wiki/Census }}" current
- 21:5121:51, 28 November 2013 diff hist +191 N Population Created page with "{{Learning concept |Description=The aggregate of all the elements, sharing some common set of characteristics, that comprise the universe for the purpose of the marketing rese..."
- 21:4921:49, 28 November 2013 diff hist +495 N Sampling Design & Procedure Created page with "{{Topic |Learning Concepts=Population, Census, Sample, Target Population, Element, Sampling Frame, Bayesian Approach, Sampling with Replacment, Sampling Without Replacment, Sa..."
- 21:0521:05, 28 November 2013 diff hist +198 N Pretesting Created page with "{{Learning concept |Description=The testing of the questionnaire on a small sample of respondents for the purpose of improving the questionnaire by identifying and eliminating..." current
- 21:0421:04, 28 November 2013 diff hist +190 N Precoding Created page with "{{Learning concept |Description=In questionnaire design, assigning a code to every conceivable response before data collection. |Wikipedia reference=http://en.wikipedia.org/wi..." current
- 21:0321:03, 28 November 2013 diff hist +191 N Branching Questions Created page with "{{Learning concept |Description=Questions used to guide an interviewer through a survey by directing the interviewer to different spots on the questionnaire depending on the a..." current
- 21:0121:01, 28 November 2013 diff hist +264 N Funnel Approach Created page with "{{Learning concept |Description=A strategy for ordering questions in a questionnaire in which the sequence starts with general questions that are followed by progressively spe..." current
- 20:5920:59, 28 November 2013 diff hist +236 N Identification Information Created page with "{{Learning concept |Description=A type of information obtained in a questionnaire that includes name, postal address, email address, and phone number. |Wikipedia reference=htt..."
- 20:5820:58, 28 November 2013 diff hist +183 N Classification Information Created page with "{{Learning concept |Description=Socioeconomic and demographic characteristics used to classify respondents. |Wikipedia reference=http://en.wikipedia.org/wiki/Classified_inform..."
- 20:5620:56, 28 November 2013 diff hist +83 N Implicit Alternative Created page with "{{Learning concept |Description=An alternative that is not explicitly expressed. }}" current
- 20:5620:56, 28 November 2013 diff hist +220 N Acquiescence Bias (yea-saying) Created page with "{{Learning concept |Description=This bias is the result of some respondent's tendency to agree with the direction of a leading question (yea-saying). |Wikipedia reference=http..." current
- 20:5420:54, 28 November 2013 diff hist +226 N Leading Question Created page with "{{Learning concept |Description=A question that gives the respondent a clue as to what answer is desired or leads the respondent to answer in a certain way. |Wikipedia referen..." current
- 20:5320:53, 28 November 2013 diff hist +113 N Dichotomous Question Created page with "{{Learning concept |Description=A structured question with only two response alternatives, such as yes and no. }}" current
- 20:5220:52, 28 November 2013 diff hist +161 N Order or Position Bias Created page with "{{Learning concept |Description=A respondent's tendency to check an alternative merely because it occupies a certain position or is listed in a certain order. }}" current
- 20:5120:51, 28 November 2013 diff hist +190 N Structured Questions Created page with "{{Learning concept |Description=Questions that prespecify the set of response alternative and the response format. A structured question could be multiple choice, dichotomous,..." current
- 20:4920:49, 28 November 2013 diff hist +99 N Unstructured Questions Created page with "{{Learning concept |Description=Open Ended questions that respondents answer in their own words. }}" current
- 20:4820:48, 28 November 2013 diff hist +205 N Telescoping Created page with "{{Learning concept |Description=A psychological phenomenon that takes place when an individual telescopes or compresses time by remembering an event as occurring more recently..." current
- 20:4720:47, 28 November 2013 diff hist +160 N Filter Question Created page with "{{Learning concept |Description=An initial question in a questionnaire that screens potential respondents to ensure they meet the requirements of the sample. }}" current