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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Describing the target audience for a set of movies

I have several observations with both categorical and numerical variables relating to the personal details of surveyed individuals (such as age, gender, education and region inside the country they ...
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16 views

Basic statistical significance

I need to check the statistical significance of some survey results. It relates to response surveys for innovation projects. The total number of participants is around 22,000. I'm using results of a ...
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33 views

Number of participants in surveys

I have designed a series of surveys in different languages and for different contacts, separately. However, all the contents are the same and are going to be used for a common purpose. Now the problem ...
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5 views

What would be the best way to combine rank responses for a parameter in survey?

I have responses for a survey question where I asked the respondents to rank 5 options. For example: response ID option 1 option 2 option 3 option 4 option 5 1 2 3 4 5 1 2 3 ...
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18 views

combining different but linked studies in meta-analysis

I am trying to join two datasets and was wondering if there is a formal method to do a meta-analysis or even if this can be categorized as a meta-analysis in the first place. Dataset 'a' has detailed ...
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1answer
7 views

Comparing results of surveying two different groups (of the same size)

I have surveyed two groups of people. They had option of answering one of three questions. Both groups picked one of the answers around 50 and 51 percent of time. How do I compare if this difference ...
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2 views

Likert-scale analysis of extremes

Can anyone explain the rationale behind the theory that states only the extreme values on a Likert scale are viable for analysis?
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7 views

Is there literature on removing questions from validated questionnaire for research?

I wish to use a validated questionnaire for research purposes but two (of the 26) questions would not be relevant in my country. The would make it a 24 item questionnaire. It is to assess knowledge ...
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26 views

How is the hazard ratio in Cox proportional hazard models affected by the case sampling?

I'm trying to conduct survival analysis using Cox proportional hazard models, looking at a biomarker for heart disease. Age is a major risk factor, so I'm modeling the age as the time scale (counting ...
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10 views

Calculate the aggregated standard deviation of several samples

I have the following survey-based data, where the first row is the aggregate of the other rows (Emp1-Emp5). ...
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8 views

Is there anyway to collate the results of multiple surveys of differing lengths?

Each of these surveys is based on the same bank of questions, for amalgamation purposes, but one of the middle questions (intentionally positioned there) is comprised of a number of sub-questions, ...
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39 views

How to analyze survey data, interval or ordinal, and how to account for nonresponse bias?

I have a question regarding a survey. I gave a test to people and they were asked to rate the tester on a scale of 1 to 5, 5 being they liked it and gave it the highest rating, with 1 being the ...
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2answers
52 views

What is calibration?

What does it mean to calibrate survey weights? Also, what are other definitions of calibration in statistics? I have heard it used in several contexts, particularly risk prediction (referring to ...
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1answer
26 views

How to get weighted summaries of survey responses in R

I am analysing survey data. Since my demographic categories are discrete I can summarise responses within demographics using prop.table. However, I would also like ...
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1answer
38 views

Converting a 5-point Likert scale to 0 to 30 range

Hi thanks for viewing my question. In my research I want to adopt a measure from prior work and apply it to a new context. The question related to a 5- point likert-scale, however, further reading ...
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1answer
25 views

Dependent questions in SPSS [closed]

I have questions in a survey that are dependent on other questions, i.e. nested questions. How do I enter those into SPSS? Example: ...
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16 views

Profiling survey respondents with both categorical and ordinal variables

I have a mixture of categorical and ordinal variables from a survey that I am trying to use to create "profiles" or segments that differ from one another with respect to a dependent variable (the ...
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11 views

Hypothesis Testing $\mu_{..}$ vs $\mu_{i.}$ for all $i$ In Context of Sample Surveys

I have been tasked with creating a table of p-values, where each cell is a p-value testing $\mu_{..}$ = $\mu_{i.}$, for each level of $i$. Essentially, $\mu_{..}$ is total average and $\mu_{i.}$ is an ...
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1answer
19 views

Identifying which survey questions strongly predict follow-up test results

For context I work with a new youth outreach program that's trying to reduce incidents of STDs in our city. So far we've been using a naive approach that target everyone equally, but this has been ...
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31 views

Is random forest a right approach?

I am pretty new to stat and having read some articles about applying random forest algorithm. I have a employee survey return which contains approx 200 questions say 50 questions per a theme so there ...
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19 views

Statistics for Survey/Research: N subjects, 4 Rational Numbers, 16 Yes/No questions

I am conducting a survey/test on different people. Let's say I have N subjects I administer them a test with two parts which they are scored as pass or fail (1 or 0) Then I ask them some ...
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9 views

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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26 views

How should I combine this binary scale with this 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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15 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
41 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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13 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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22 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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20 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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31 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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16 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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16 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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1answer
56 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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20 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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27 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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28 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
17 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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43 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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39 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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95 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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58 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
282 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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34 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
50 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
123 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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20 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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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
107 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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29 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 ...