# Tagged Questions

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 determine if 3-way survey winner is statistically significant?

I ran a simple online survey to ask 249 people which of three donation requests they found most compelling. This survey was slightly improved by randomizing the order of the answers. Message A ...
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### Testing whether there is a difference between two groups who were asked the same set of questions

I asked two groups of individuals (80 males and 10 females) fill out a questionnaire asking them their attitude towards a series of political variables. Every individual had to answered a set of 16 ...
114 views

### Predicting response propensity in a rolling data collection

I'm working with a survey that uses a rolling data collection format (i.e., there are multiple waves of sampling and initial contacts). I'm trying to develop a model to predict how likely a sample ...
187 views

### How to apply published factor analysis loadings to sample data to compute factor scores?

I have data on 18 participants responding to a 30-item instrument. I also have a paper in which the researchers performed a principal axis factor analysis on the same survey where they report the item ...
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### Choose among poststratification/calibration weights

I have data from a survey, stratified by country with a roughly equal number of participants in each country. Also, I have calibration totals, three dimensions (say, age, sex and work status) plus the ...
519 views

### Coding “Don't know” in Stata

I am coding a questionnaire on STATA and there is a question about Father Education with the option "Don't know" at the end. I am not sure how to code it, because I don't want to count it as missing ...
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### Multiplicity in sample size calculation for stratified estimation problem

We want to determine the public opinion about a recently administered intervention in a health care network. There's a brief questionnaire of 10 Y/N questions in which we'd like to estimate ...
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### Optimal winsorizing cutoff for stratified proportional to size sampling

I'm trying to use Kokic & Bell 's ideas to find the cutoffs for the following population estimator $\sum_{h}\frac{1}{n_h}\sum_{i}\frac{M_{hi}}{z_{hi}}\frac{1}{m_{hi}}\sum_j y_{hij}^*,$ where we ...
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### Likert scale question divided into different group. How to calculate mean of different group?

I want to do a survey to determine how satisfied the (16) employees are with the company training program. The survey has 30 questions, each using a 5 point Likert scale for responses. The questions ...
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### How to compare two samples on 25 variables, each designed to measure one of three underlying constructs?

I have designed a questionnaire to test which of three motivational constructs can best be used to describe learners motivation. 25 statements were designed to test the three constructs (each ...
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### Looking for a good online resource about survey design and analysis

What is a good and relatively brief overview of good practice for getting valid results from surveys. I'm particularly interested in something about good survey design and analysis.
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### Comparing rates of binomial outcome response in large datasets

This seems like a trivial question yet my lack of distributed training is leading me towards potentially more confusing answers. Hence I would like to field my question here: I have data on several ...
319 views

### How to analyze a 34 item standardised survey purportedly measuring 6 dimensions using SPSS?

I am currently analyzing a 34-item standardized survey on Physics expectations. I gathered data from 104 female respondents from a certain school. The survey's supporting literature said that the ...
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### Can complex sampling be ignored for exploratory patient-centered analyses?

Hello fellow StackExchange users, Preamble: I have been tasked with performing a cluster analysis (or possibly a latent class analysis, as I am pondering) to find non-overlapping groups of like ...
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### How can I use “partial pooling” to shrink cells with a small sample size towards the mean in a contingency table?

How can I use "partial pooling" to shrink cells with a small sample size towards the mean in a contingency table? I am interested in the proportions within each cell with a positive response. To ...
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### Calibrate against multi-dimensional population totals using the survey package?

Is there a way to calibrate against multidimensional control totals using the survey package? I have been able to estimate poststratification weights, but now I'm ...
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### Comparing densities of two partitions of a population

I have a population with age range 0-6 years old. A survey asked various "Choose all that apply" questions and I'd like to compare the age densities for each subset (Did choose option X, Did Not ...
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### How do I conduct a $\chi^2$ test on two different surveys?

I conducted a pre and post survey that consisted of five questions with answers being either agree or disagree. The survey was to assess if a persons perception of Pit Bulls was improved after they ...
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### Participant identifier for a field study in a sensitive work environment

We are doing an evaluation in different organizations and need to get data from workers about their work behavior. As this information is something that could get workers in trouble, privacy is an ...
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### Curing noncoverage with hot-deck imputation?

Is it advisable to use hot-deck imputation to allow for poststratification in the presence of empty post-strata? In a survey reweighting exercise, I have population totals for a complete ...
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### Effects of ignoring the sampling strategy

Does the use of calibration/post-stratification imply that the sampling strategy/stratification/individual selection probabilities can be ignored altogether? In a survey reweighting exercise, I have ...
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### Post stratification weights in survey package in R

I have data collected from a survey administered on a subset of the population. I also have the population proportions of variables such as gender, race and housing type. I would like to combine the ...
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### “Fraction of response interested in” — what does it mean?

I am doing a sample size calculation for a survey and am using the formula found at the bottom of this page: http://www.raosoft.com/samplesize.html In the formula, r is 'the fraction of responses ...
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### In a census-like situation, does it make sense to use Bayes Rule?

I'm involved in a census at our condo association. We may, for logistics reasons, survey 1/4 of the population per quarter so that we have surveyed everyone by the end of the year, but let's assume we ...
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### Comparing questionnaires with actual observations: is it worth it?

First of 2 part query: I have observed a 100 Drs and recorded the number of times they touch surfaces while in a room:  \begin{array}{l|c|c|c|c} Dr\text{ ...
1k views

### How to analyse a ranking and rating scale together?

In some market research consumers are asked to rank the features of a product based on priority. For example, Rank the following features for a device based on your priority (1 being the topmost ...
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### Sampling variance is reduced when removing duplicates — why?

I have carried out a simulation experiment where $n$ out of $N$ items $x_i$ were drawn with replacement with unequal probabilities $z_i$ from a finite population. (If it matters: $z_i = 1/(Nx_i)$ in ...
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### How to compare response to same question asked at different time points?

I asked survey respondents about two points in time, and asked participants the degree to which they "agree", a typical Likert-style question. For example, as if I had asked "Before Obama became ...
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### Computation of composite score or summed score from Likert scale

I am proposing a survey for my research proposal in speech therapy. There is a set of guidelines that speech therapists are supposed to follow, so that all questions are conceptually related - so that ...
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### Determine weights from selection probabilities in a “with replacement” sampling scheme [duplicate]

Possible Duplicate: Derive househould weights from a uniformly distributed person sample EDIT: Essentially, I have answered the question myself in the linked question: Derive househould ...
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### How do you assess for mode bias and scale effects when designing survey questionnaires? [closed]

We typically educate clients on the potential bias of one mode over another (online versus paper surveys for example) and the bias a scale can have when designing questionnaires. A client recently ...
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### How to deal with multicollinearity issue when analyzing survey results?

I recently conducted my first study looking at parental education as a determinant of risk. I conducted a survey which measured risk in several contexts and also recorded information about the ...
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### What do they analyze [closed]

Please, this is maybe a meta-statistics question but let me ask this. What would you tell a mathematician to answer the question: "Mention few examples what kind of data analysis the insurance ...
459 views

### Should I randomize survey questions if a respondent will fill in identically structured forms multiple times?

I'm having an argument with a colleague (neither of us have a strong statistical / research methods background) on whether we should randomize questionnaire layout. The survey in question is a ...
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### Trick in survey design for “problematic” questions

Years ago I read that there's a certain trick researches resort to when they want to obtain survey data regarding questions where one wouldn't expect people to answer honestly, such as "Do you beat ...
224 views

### Calibrating a household survey to household-level and person-level control totals

Imagine a (reasonably large) household survey where all persons in every household have been questioned. For the purpose of microsimulation, this survey needs to be expanded to a full population. In a ...
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### Betweenness centrality applied to Amazon books graph

I made a visualization of Amazon related products. Every link in visualization means two products are often bought together. Now I'm applying various graph analysis techniques and am fascinated by ...
134 views

### Matched Analysis with Complex Survey Data

Complex survey data is that typically found produced by the National Center for Health Statistics (NCHS) or the NSLY; it typically contains information on PSU, strata, and weights. To make nationally ...
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### Inferring a likely full population from multinomial measurement or survey data

Assume that we have one or several multinomial samples (e.g., surveys) taken from our population. While inferring characteristics (such as mean values, correlation, ...) from a multinomial sample is a ...
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### How much sub-questions impact one ordinal question in a survey

I have a variable NPS which is an item on a survey, the answer format is ordinal, 0 to 10. Then there are sub-questions on the same survey, some are ordinal, some are categorical. I would like to ...
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### Survey weights in logistic regression models

We are interested in fitting a multiple logistic regression model using data obtained from a national survey of children with special health care needs. The data has an accompanying weight variable ...
586 views

### How to avoid and handle survey non-response?

One objective of a survey can be to understand the proportion male vs. female users. To the extent a specific gender correlates to particular use cases of a technology, product design, product/feature ...
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### Statistical tests to do data quality checks

I want to identify bad responses in the data we get from our vendors. To assess the quality of the data, what statistical tests can i apply to identify bad respondents? I performed Discriminant ...
203 views

### Combining the results of two surveys

Someone has surveyed a number of people and put the results in a database (Survey 1). Each observation has additional information that, for any subpopulation (men only, young only, etc.), gives a ...
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### Non-response rate

In a project that I am doing to evaluate customer behaviour, I have asked a set of questions such as whether they read the unit pricing before they decide to purchase a particular product or do they ...
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### How are margins of error related to confidence Intervals?

Can somebody tell me the difference between margins of error and confidence intervals? On the Internet I see these two meanings getting used interchangeably. Is it right to say, "Confidence ...
549 views

### How do I clean up inconsistent survey data?

I have some survey response data that are inconsistent and I'm not sure what is the best way to handle them. This is the nature of the inconsistency: Have you ever had a food poisoning episode ...
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### How to determine if two survey questions are independent?

I am trying to determine if there is a dependency between two survey questions about the effectiveness of a subject-specific online communities. The first survey question asks how frequently a user ...