Refers to an instrument used to collect a sample from a population. Surveying often refers to sampling of human populations and is primarily done by administering questionnaires or interviewing individuals. Sampling individuals for surveys in stratified populations may require more complex sampling ...

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Multiple response question with copied observations

For an analysis with the answers of a multiple response question submitted by respondents as the dependent variable, I was thinking of using duplicate observations. So e.g. if a respondent submitted ...
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29 views

Suggestions for name of email to use for Online Survey [on hold]

I am conducting a important online survey for private sector organizations. Previous studies suggest that responders (senior members of those organizations) are very unlikely to respond. If I use the ...
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14 views

How should I combine this binary scale with a 4-point scale?

I'm doing a meta-analysis and I want to combine the results of two questionnaires. One questionnaire has 30 questions about whether you've experienced certain traumatic life events. They're all ...
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8 views

How do I calculate rank based on survey response?

I have done a survey that rank species on some criteria. Number of species per respondent may vary. Out of all listed species by a respondent, I ask them to rank (1 = highest). The lowest depends on ...
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1answer
26 views

Joint inclusion probability for Horvitz–Thompson estimator

There is a Wikipedia page for the Horvitz–Thompson estimator. It is an estimator for the population total. Unfortunately the page has failed to state the standard error. From here, the standard ...
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6 views

Searching for a term for systematic, universal non-reporting in survey data

I am searching for a technical term to describe a situation I have run into my survey research and analyzing survey datasets. In experimental survey research, systematic under-reporting and ...
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9 views

Likert score significance testing between two surveys

I have two surveys taken one month apart. They contain 20 Likert-type questions (strongly agree, agree, neither agree or disagree, disagree, strongly disagree). I have added strongly agree and ...
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14 views

How to estimate survey data at cluster level in a stratified clustering survey design?

While estimating from the survey data involving stratification & clustering survey design and using survey package of r, is it possible to estimate at the cluster level? For eg; for following ...
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14 views

weighting for non-response in a census-like survey

I am analysing survey results for a large organization. I have a frame of 8000 people with demographic information. Apparently, around 6000 of these people had valid e-mail addresses, and the survey ...
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22 views

Cronbach's Alpha

which types of items (Ordinal, nominal, scale) included in Cronbach alpha calculations? In other word, in my questionnaire i have a different types of questions (yes or no, Likert scale, and opened ...
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14 views

Correcting for heteroscedasticity in logistic regression

I am using a large health dataset as a part of a research project (N = ~18 000). My colleagues and I are investigating whether smoking predicts the presence or absence of a mental illness. We are ...
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14 views

goodness of fit vs independence test in finite population case

I have a finite population frame. Around 80% of the frame members have e-mail addresses, and a survey was sent via e-mail to those people. Roughly 20% of those to whom e-mails were sent replied to the ...
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26 views

So survey data cannot be normal distributed?

I am analyzing a data from survey. The data is from a 2X2 between subjects experiment design with 45 subjects in each of the four conditionsThe questions are based on a 5-point or 10-point scale. ...
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19 views

Can I pool my data?

I collected some data about purchase decisions. For simplicity, lets say my IVs were Price and Quality, and DV Intent to Purchase My survey prompt was something like "Answer the survey questions ...
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15 views

comparing two items of a questionnaire

I have developed a questionnaire that assesses the reasons why adolescents do not adhere to their asthma treatment. I have an item that asks 'How often are you supposed to take your asthma ...
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27 views

weighting of ordinal responses

I have seen some analysis of a survey where responses across a dozen similar questions which identified perceived problem issues have been weighted to create a composite score. Possible responses to ...
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1answer
12 views

How to word a survey question comparing alternative purchase choices?

I'm creating a survey to ask a customer that just bought a product what other products they considered before buying and how seriously they considered them. I'd like to use a Likert scale type of ...
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42 views

Is the use of PCA appropriate to validate a designed questionnaire?

I looked at the questions that may already have my answer but unfortunately it is not the case. I would like to ask again my question which has been revised to fit the rules. I am to measure 5 ...
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38 views

Statistical Significance?

I'm wondering if there is some sort of statistical significance test that would suit my data, or whether I have to depend solely on descriptive statistics. Here's what I've got: Thirty six students ...
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57 views

What is the best way to present rank survey data?

I have a survey data where I've asked a local community to rank 6 different issues they face on a scale of 1 to 6. For example, ...
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52 views

Is weighing cases allowed/necessary for the Kruskal-Wallis and its post-hoc tests?

I have a dataset where I have respondents from 3 different countries (USA, NL & DE) and use the Kruskal-Wallis to determine if there are any statistically significant differences regarding ...
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1answer
100 views

How to combine different questions of questionnaire into a single variable?

I have used a 48 item questionnaire - a Likert scale - with 5 points (strongly agree - strongly disagree). The questionnaire contains 6 categories and each category has 8 questions. 8 items correspond ...
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26 views

Generate weighted multidimensional index with Likert-data

I am a bit desperate and hope you can help me with my issue. I'm analyzing the attractiveness of several countries. To do so, I asked practitioners to evalute 17 dimensions on a 1-5 (5 best) ...
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2answers
38 views

In survey sampling, have calibration margins to be known (estimated with 0 variance)?

Calibration estimators in survey sampling (as defined by Deville and Särndal, and implemented for example in the SAS macro "Calmar") generalize many other calibration estimators, including ...
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1answer
74 views

Correct graph visualization for multiple-choice questions?

I'm working on a questionnaire with some multiple choice questions. Example: Which continents are you planning to visit? Africa Asia etc. The next will be to refactor the current analytics that ...
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19 views

How to determine the number of employees in a business when sources are inconsistent?

I am analyzing a business survey data. I am interested in the total number of employees of each firm. Specifically, I am interested in: The total number of employees in a specific city, and The ...
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48 views

Poor Results from UK Polls [closed]

Recent UK election showed how seriously wrong polls can be. I am wondering why almost all the polls predicted the wrong result in this particular incident. Is it because poll companies took wrong ...
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23 views

Are two sets of multiple choice survey responses different?

I have survey data with 2 distinct types of respondents: tall people and short people. They've answered a series of questions about their preference for certain foods. I'm trying to determine what ...
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2answers
99 views

Is the accessible population a random sample?

At academic institutions dedicated to teaching we often use our current students taking a specific class, the accessible population, as a random sample when our actual sample includes all students who ...
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23 views

Analyzing a “ranking” question on a survey

I gave a survey to Volunteers. Now I am not sure how to code a certain question, so I can evaluate. The question is "Please rank what motivates you to....? (1 = most motivating, 2 - 2nd most...). ...
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2answers
38 views

How was public opinion survey sampling done in early 20th century?

The question is motivated by reading about Gallup's success in predicting the 1936 US election with a much smaller but more representative sample than Literary Digest. Literary Digest used phone ...
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2answers
80 views

Estimating bias in surveys

Say a company runs a survey across random N cities independently in some country estimating the fraction of males and females on each city. E.g.: Males = $X_1$% ...
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12 views

Survey design with two scales

Can anyone help me out? I worked years ago on a research project that used a survey design that had two Likert scales for each statement. One measured agreement, the other importance. I've been asked ...
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0answers
79 views

Calculating needed sample size for two stage stratified cluster sample

We want to carry out a survey to assess perceptions of quality and access to medical education of last year students. Based on our research, we have decided that a two stage stratified cluster sample ...
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1answer
78 views

Controling segmentation process in order to get usable segments

My aim is to create segments based on survey data. This in it self is quite straight forward: I use PCA to extract information from the survey answers, and then ...
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37 views
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36 views

Multiple logistic regression models and survey data

I have a set of survey data that consists of answers to 10 knowledge questions along with demographic information about the respondent. Our question of interest is to identify which demographics are ...
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20 views

How to meaningfully collapse Likert-type scale by group?

I've a data set with a set of measures corresponding to group identifiers and Likert scale observation-level measures corresponding. On the lines of this discussion, my Likert scale variables can be ...
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1answer
41 views

Using post-stratification weights in R survey package

I am analyzing a dataset that has a variable for post-stratification weights. As this is a complex survey, the plan is to use the R survey package. I have been ...
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19 views

Which statistical tests requires one to know the sampling error?

I would like to know which statistical tests requires one to know the sampling error? I am planning on using an existing public online panel that is representative of the UK population by age, gender ...
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8 views

design-based model when there is info about stratification but not about clustering

I intend to estimate a couple of inequality indices in Latin America using the 2014 AmericasBarometer. It is probably the only recent survey covering a large number of countries in the region, with +- ...
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10 views

Making sense of Item Discrimination and Item discrimination index

I recently completed a questionnaire administration pre and post an intervention. The sample size was 157 for 13 items. I ...
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1answer
24 views

Data stratification for long-tailed distributions

I'm encountering a few problems successfully stratifying a dataset that is long-tailed to the right. In my research, I came across this excellent response: Sampling from a long tailed distribution ...
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34 views

Comparing two groups of ordinal survey data?

I am trying to compare two (theoretical) independent groups of surveys with a 5 point ordinal scale (1 - greatly disagree, 5 - greatly agree). Both group A and group B received the same 10 questions ...
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Is there any research that compares Likert scale questions to “satisfaction” scale questions?

I'm trying to put together a questionnaire for measuring employee satisfaction with an internal process. I'd like to figure out if there is reason to prefer: ...
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54 views

Longitudinal pre-post test/follow up

I am an undergrad student trying to get my head around statistical analysis. Can someone help me to make sense of the best way to analyse my data? ANOVA, ANCOVA, t-tests....it is all a foreign ...
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32 views

Analyzing questionnaire data with control group

I have 12 questions weighted on a 5-point Likert scale. 20 people responded to each question, so we have 20 rows and 12 columns, with each cell ranging from 1 to 5. Questions 1-4 measure a random ...
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2answers
114 views

Approaches for generating synthetic survey data with dependent answers?

I would like to produce synthetic survey data. At the moment I produce independent answers between questions according to an arbitrary discrete distribution as in this question. I want to generate ...
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56 views

Analysis of survey data

This is the first time I am analyzing a survey. I have limited knowledge about stats and the best practices and would appreciate some pointers as to what kind of analysis I should perform on the data. ...
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1answer
45 views

Post stratification weights and the survey package in R

I have survey data that needs to be weighted, and to help me with this task, I have access to the full joint distributions of the variables I want to use. As I understand it, I should use the ...