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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27 views

Stratified sample strategy - sample size

We have conducted a survey and collected over 30,000 surveys, from school children, ages between 13-18 years old, on a national level across 18 cities, spanning 3 regions (east, south and west), of a ...
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12 views

theoretical profile correlation

My data (n > 4000) contains the results of two separate tests (instruments). I have a profile made from likert scales for one of the instruments (S1, S2, ... S20). I want to find the corresponding ...
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1answer
20 views

What will be the process of statistical analysis with Survey data?

I have the survey data of sales force satisfaction and dis-satisfaction . In this data set,there are three to five sub-questions inside to one question. I want to know how can i start the statistical ...
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25 views

Can mean values be seen as a form of PCA with a LOT of assumptions?

This question just occurred to me out of the blue. PCA is a way to reduce dimensions. Another way that is often (perhaps too often) used is to take mean values of two or more variables. This is done a ...
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20 views

What is the sampling design and how to declare it in the survey()

I have a sample design that can be resumed in: Split the city in X areas and, for each area, sample 5% of the residences and get some informations about it; For each residence, interview ALL ...
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1answer
29 views

Addressing Non-response in a Convenience Sample

I am studying customer satisfaction in a large hierarchical organization. I plan to administer a voluntary survey to customers across the organization, and need to address non-response in my analysis. ...
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1answer
27 views

Defining PSU in “Sampled with Replacement” Cluster Samples

I am trying to decide on an approach to estimate design effect for a multi stage cluster survey. The clusters were selected with probability proportional to size sampling WITH replacement. The ...
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0answers
8 views

How to measure whether the YES/NO (Bernoulli trials) answers have converged about their estimated mean for a specified error bound?

I have a questionnaire with questions that require a Yes or a No answer (1 or 0 input) from participants. From the set of answers I want to use the mean, $\mu$, estimated from the data for the ...
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0answers
21 views

Finding multivariate clusters with survey data (in R)

I'd like to conduct a multivariate cluster analysis on data from the American Community Survey's PUMS microsample (individual level records). I've only performed cluster analysis before when there are ...
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20 views

Chi-square and repeated measure

I have a survey of 20 questions; answers are given on the 5-point Likert scale. Goal: to understand whether the answer on the first question affects answers on other questions. Normally speaking I ...
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0answers
14 views

survey data feedback normalization

assume i have a survey which contains 10 questions, for each question one can answer helpful/not helpful/neutral. when i finish collecting the data, i discovered that some people tend to have a lot of ...
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1answer
60 views

Hypothesis testing multiple choice question with single answer

I have a survey questions with five options and I ask respondents to pick their single top choice. What test should I use to figure out if the top voted answer is statistically more popular than the ...
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1answer
22 views

Multiplicative error in survey data

I'm working on a panel survey data where each individual's income was multiplied by a individual-specific random number (each random number is evenly distributed from 0.5 to 1.5) to avoid any ...
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1answer
49 views

Simple “yes / no” question. Uncertain how to analyze the results

I am in the midst of conducting a study which compares content in a printed catalog of records to content in a much larger online catalog of similar records. I have randomly selected 50 entries from ...
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0answers
23 views

Margin of error for non-dichotomous data

I am trying to calculate the margin of error for specific survey questions. I know how to calculate this if the data are dichotomous (i.e., a 75-25 or 60-40 split). But how do you deal with questions ...
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0answers
80 views

How many people bought wine?

Rephrased a problem trying to solve for work in terms of people buying wine, also included progress made so far. Set-up: Customers enter a winery with the option of buying bottles of wine. Those who ...
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0answers
14 views

What can be used instead of confirmatory factor analysis?

Can you please share your thoughts of the best method to deal with the following issue. In my study I'm using a well-known tool (questionnaire) which was validated in several settings but developed in ...
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0answers
33 views

How to code and analyze skiped questions with SPSS

sorry if my question may seem rather silly, but I'm not well up on statistics and need a piece of advice. I have some cases in my dataset where respondents have abandoned the survey half-way, so I ...
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1answer
18 views

Individual sampling weights and percentages

I am working with public use microdata measuring educational attainment. I want to calculate the percentage of the population older than 25. I am merely unaware of how to use my individual weights ...
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0answers
12 views

Assessing quality of a fixed sample size with limited information about full set

Given the level of this site these are probably intolerably newbie questions, but here goes... So I'm studying the cost of public transport in a given city. I have access to data from a hopefully ...
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2answers
265 views

What's the best way to visualize the effects of categories & their prevalence in logistic regression?

I need to present information about the main predictors of a candidate's votes using a public opinion survey data. I have run a logistic regression using all the variables that I care about, but I ...
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1answer
45 views

How to calculate the probability of winning an election?

I'm analyzing a survey data that contains the following 3 variables (questions): If the election was today who would you vote for in the following list? (A, B, C, D, or E)? Let's imagine the ...
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0answers
14 views

How to find a meaningul threshold for relevant elements?

Is there any basic rule on which elements are over a certain threshold (and thus being important for further inspection) and which are below? Or can I set a "random" threshold just as I find it ...
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0answers
17 views

Research methodology suggestions on Electric utility services

I have a data set of 30 million consumers of an electric utility service. - consumption - billing - smart meter readings sampled every 5 seconds - market share data area wise Any suggestions on how ...
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3answers
42 views

How to check a similar question in a survey

I have a survey in which I asked, "Would you be ready for a t-shirt shop in St Jean Avenue? [yes/no/don't know]". Then I asked many other questions, ultimately including, "Would you be ready for a ...
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6 views

Aggregating Survey Information Over Time

Suppose you have a monthly survey that asks a variety of questions that you aggregate the answers and standard error. However, some respondents begin to provide answers to the monthly survey on a more ...
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0answers
9 views

How do you do a power calculation for a 2-phase prevalence survey?

I'm trying to work out what sample size I need to calculate a prevalence rate within certain confidence intervals, using a two-phase design. There is a screener test. Everyone that screens positive ...
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1answer
32 views

Evaluate improvement in questionnaire questions

I asked two different groups of subjects to answer a questionnaire of 2 yes/no questions. The "correct" way of answering the questionnaire was to answer yes to both questions. I want to prove or ...
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1answer
27 views

Questionaire analysis and grouping responses

I want to know if the creative process engagement is related to creativity. I don't know how to analyze the questionnaire. I will be collecting data for cpe with Zhang and Bartal's (2010) 11-item ...
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2answers
192 views

Identification of useless questions from a questionnaire

I'm developing a questionnaire. To improve its reliability and validity I want to use statistical methods. I want to eliminate questions whose answers are always the same. This means that nearly all ...
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0answers
32 views

Analysis of a complex sample with replicate weights: error when using survey package

I have a data base from a stratified multi-stage survey. Due to confidentiality reasons, they do not gave me the strata neither the psu, ssu… variables. Instead they gave me the: “Final weights” ...
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1answer
57 views

Use raking to impute multivariate distribution

The Problem I have a detailed dataset of 6 variabes, but for all but one year, I only have marginal distributions of 5 variables, the rest is missing. From that, I would like to obtain a full ...
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1answer
124 views

Effect of two demographic IVs on survey answers (Likert scale)

I have 4 questions in a survey with Likert-style answers (i.e. 1–5) – and the participants have also answered the demographic questions (country and study-years) – which test do I need to find if the ...
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0answers
31 views

Convert Likert scale to pairwise?

I want to find a way to convert the Likert scale to Pairwise (AHP/ANP) scale, because my questionnaire contains 30 criteria to compare, and making a pairwise questionnaire will contain (30*(30-1))/2 ...
2
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1answer
52 views

Ratio estimation model in 2-stage cluster sampling

I've been reading about stratified sampling, 2-stage SRS sampling, and ratio estimation in finite populations and I have a question. When the ratio estimator is introduced, it seems that in order for ...
2
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1answer
47 views

Statistical modeling of land use - 3 types of variables

I am struggling at the moment with how to determine links between different sets of variables. I have data on land use/cover changes in a number of regions in a period of 20 years. They are all ...
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1answer
59 views

Pre- and post- presentation data analysis

Basically, I needed a bit of advice as I have carried out some research on whether awareness and knowledge of HIV had been increased on university students by giving a questionnaire to students before ...
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0answers
19 views

Can composite scores of Likert scale be obtained? [duplicate]

I am using a Likert scale for a group of 3 questions. Strongly Agree Agree Undecided Disagree Strongly Disagree I have 3 questions with these possible responses under the category "Effectiveness". ...
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25 views

Survey Analysis

I have survey data from approximately 500 companies, and on one question they were asked to rate their priorities from 1 to 8. It's a forced ranking so you can't answer with two 8s. The issue that I'm ...
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1answer
45 views

How to rank criteria based on survey response?

I have made a survey to weight the importance of different features of a credit card using a 5 point Likert scale with scores (very important = 5...neither important or unimportant = 1). I have 8 ...
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0answers
11 views

Assessing stratum variability in surveys

What is the best approach to determining variability within different stratums in a survey ? The easiest approach would be to examine variability over any one response variable, but are there methods ...
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2answers
134 views

What is the name of the survey method for determining the rank order of multiple items using a multiple question process?

I have seen surveys that use the following method to rank multiple items against each other. Let's say you have 25 items and you want to know their rank order (according to the survey-taker's ...
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1answer
133 views

How to work out Effect Size for a MANOVA using G*Power

I'm using G*Power to work out how many participants I need. I'll be using a MANOVA, I have two independent variables (Male and Female) and they will be answering 13 different questionnaires so 13 ...
3
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0answers
86 views

Binomial logistic regression in SPSS using survey weights

I am running a logistic regression in SPSS with a sample that uses survey weights. The sample size is 1000 and the weights are along the lines of .86 or 1.23 depending on the case. I am using the ...
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1answer
38 views

Randomized Response, calculating probability

I have a problem with randomized response method when calculating the probability of critical attribute. For any of you who are not familiar with the method, you can check it here, Wikipedia Entry for ...
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0answers
11 views

What is an interpenetration design?

I have come about a quote in Groves & Lyberg (2010, p. 859) saying that "(...) both interpenetration and reinterview designs are required to estimate these terms" (referring to estimation of ...
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1answer
45 views

Second survey after knowing how different strata respond?

We did customer survey in last fall from which we know how different stratas answer to survey questions. We did notice that amongst many strata having younger people who move often the non-response ...
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1answer
52 views

Several items for one construct

I am a dummy in statistics but need to accomplish some simple survey analyses. My question is: if I have several questions (items) for one construct (say, questions JS1-JS3 for job satisfaction) with ...
4
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3answers
118 views

Regression for survey data

I am a bit new to analytics. I have this survey dataset with the attributes below. Independent variable: a. Are we trustworthy? (Value: 1 to 10) b. Do we offer solutions that you need (Value: 1 to ...
9
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1answer
264 views

Does SurveyMonkey ignore the fact that you get a non-random sample?

SurveyMonkey has steps and a chart for you to figure out what sample size you need for a given margin of error or confidence interval, based on your population size. SurveyMonkey sample size Does ...