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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How to convert World Fertility Surveys 1975’ raw data-DAT files into a set of Stata dta files [on hold]

How to convert World Fertility Surveys 1975’ (for Pakistan) raw data-DAT files into a set of Stata/SPSS data files. I have found this link but this didn't work Turning the World Fertility Surveys’ raw ...
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1answer
8 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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37 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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33 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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28 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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43 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
34 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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16 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
25 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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18 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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47 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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18 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
94 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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18 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
37 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
76 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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11 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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37 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
72 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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26 views
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29 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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16 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
19 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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18 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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6 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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8 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
22 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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20 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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43 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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27 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
113 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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50 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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31 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 ...
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1answer
46 views

For a conjoint analysis in SPSS, I have 16 cards, but some combinations are unrealistic. Do I still include them in my survey and analysis?

I ran an orthogonal design for my conjoint plan and ended up with 16 cards to test. However, not all combinations make sense in the real world. I'm afraid that if I exclude the cards that are ...
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2answers
28 views

Online Panel For Survey - Can It Be Representative?

I am thinking of using a company that has an online panel to recruit participants for a questionnaire study. Because the demographics (age, gender, region etc) of the entire population is known ...
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1answer
65 views

R : using survey package to run t-test on sub population of weighted data set

I have a large set of weighted data. I have loaded it into a survey design and would now like to run t-tests on sub-populations. example: ...
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26 views

Normalizing interview scores

Our school debate team is interviewing potential new members. There are a lot of applicants, and so we have decided to only have six of us present at any given interview. We are judging each of the ...
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13 views

Analysing ordered non numerical data from a survey

I'm working on a social experiment which involves basically asking people to order a bunch of images from best to worst, according to their own opinion. The objective is to select the best (ordered) ...
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1answer
40 views

Preparing a survey questionnaire

I have want to prepare a survey, the data from which will be used for conjoint analysis. The next phase would require doing a price elasticity study. The study is for a cosmetic product.The company ...
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1answer
96 views

Weights in IPSW (inverse propensity score weighting) too high?

I used a logistic regression on a variable indicating whether a person of an address-dataset took part in a survey (1), or not (0). I extracted the probabilities of each person to participate and ...
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18 views

Elastic net is being used in genome wide analysis. Similar approach would work for survey analysis?

I'm approaching the elastic net procedure for genome wide analysis (GWAS) because it allows for feature selection, groups detection and improved validity. It's a powerful technique when you have many ...
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35 views

Probability: Unlimited Amount

I made a program to guess on a multiple choice test with an unlimited amount of questions. I want to know the chances of getting 5 questions correct in a row. There are 4 choices on each question. ...
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13 views

Sub-Questionnaire analysis

I want to carry out regression analysis between organisation performance and HRD practices in organisations. For that I have sorted out Five Major heads that are HR planning, Incentive Practices, ...
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30 views

r linear regression mistakenly giving me r2 value of 1 [duplicate]

I'm using R to create a linear regression model from survey data about public sentiment for a new technology. I am encountering a problem where the addition of a new explanatory variable raises the ...
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1answer
35 views

Visualising individual observations in weighted data

Context: I have a survey where I have deliberately oversampled particular groups of respondents. I am aggregating these groups and therefore I am using measures such as the weighted mean to ensure my ...
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62 views

Borda Count (Weighted Sum) vs Weighted Mean

I recently ran a survey where I gave users 36 options and had them rank their top 10 from most important to least important. I've taken the results and assigned each position a weight (i.e. ranked ...
3
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1answer
123 views

When a CFA model has a “covariance matrix was not positive definite” problem, is it due to the dataset or the model?

I am testing several CFA measurement models with Lavaan in R. The questionnaire that I am investigating has been shown to be composed of 1-factor, 3-factor, and 4-factor. In the dataset, I found ...
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1answer
28 views

Reading recommendations for psychometric refinement

a research project turned up a large number of survey instruments on a specific topic. There is a great deal of conceptual item overlap in these instruments, but they do differ in some key ways, ...
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14 views

Ranked responses across survey questions

We have a set of arthritis disease activity questions. Patients are given a scenario that describes a disease activity level scenario, like (A)"It is not painful to write" or (B)"It is painful to ...