Questions tagged [qualitative]

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find a suitable statistical method to analyze Yes/ No type qualitative data

I have done a survey on finding the applicability of Co- management system on a reservoir. This survey contains 8 main points. Under one main point, I included some Yes/No questions (No of questions ...
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How to Ensure Saturation Using Grounded Theory?

In quantitative causal inference, we do power analysis to determine the minimum sample size to achieve (1 - $\beta$) statistical power of our hypothesis test with a specific $\alpha$ statistical ...
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How should I conduct and present qualitative analysis to investigate group differences?

I have a dataset where about 20 people took a psychometric test, then filled out an open-text questionnaire and conducted a think-aloud problem solving task which was recorded and transcribed. I am ...
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Coding via vectors of $K$ dummy variables or bits: How exactly does this work? [duplicate]

Chapter 2.2 Variable Types and Terminology of the textbook The Elements of Statistical Learning, second edition, by Hastie, Tibshirani, and Friedman, says the following: Qualitative variables are ...
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Producing a plot in R showing change of survey results between two time periods?

I need to produce a plot that shows change in survey results between two time periods, very much like the image shown below. I don't even know what these plots are called to find out myself; searching ...
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2 votes
1 answer
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How to compare paired qualitative data?

I would like to compare two methods on qualitative and paired data. To summarize my study for you (it's for an internship), I have activity values ​​that were measured on 13 sites, for 12 species of ...
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4 votes
1 answer
127 views

Qualitative data analysis for statisticians?

Occasionally in my professional work, I've run into the need to analyze qualitative data. Because of some assistance I've had from non-statistician colleagues, I've learned about techniques such as ...
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Testing whether the levels of a qualitative variable are equally effective

To ultimately increase the demand for Fresh Detergent, Enterprise Industries' marketing department is conducting a study comparing the effectiveness of three different advertising campaigns. These ...
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1 answer
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Comparing two sets of proportions/percentages from related samples (bibliometrics, qualitative data)

I'm a newbie in statistics and bibliometrics, so I'm quite lost right now. I have two sets of data, A and B, both of them with frequencies of topics or subjects used in translation research ...
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Qualitative analysis

Which test can I use for smaller data sets (<5 in a single cell, <20 in group, although N>500) but for larger grids (3x4, 4x5 etc.)? Chi-squared test can be used for larger grids but not for ...
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1 vote
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123 views

Using qualitative data (numerical) for prediction

Let's try and look at this with an example before I get into my questions. Let's say you're trying to predict the number of Oscars a movie will win. With qualitative data we can clean and plug in a ...
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1 vote
1 answer
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for which variables in panel data i should do stationary test?

i have a panel data and my dependent variable was stationary according to ADF test.now i dont know should i test it for my independent variables too or not? btw does it make sense to take stationary ...
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2 votes
1 answer
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Standard Deviation in qualitative sample

Can there be a meaningful standard deviation for qualitative data?
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Plot of two ordinal variables?

It is common to represent various (ordinal, social) attributes on a pair of axes as in the examples below. In general, what is this sort of graph/representation called? It is, perhaps, useful to ...
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-1 votes
1 answer
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Difference between continuous and non-continuous data . [duplicate]

In a dataset "survey", pulse and age are given as non-continuous data. how come these age and pulse can be non-continuous? this is the reference link https://explorable.com/discrete-variables
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6 votes
1 answer
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Survey: dismiss an answer based on quality of other answers?

I am having an issue that I can't find an answer to. In my research, I have a mixed qualitative/quantitative survey (roughly 30 participants). One of the participants answered 3 out of 5 qualitative ...
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2 answers
981 views

Intercoder reliability without mutually-exclusive codes

I have the results from qualitatively coding the contents of ~100 images, with 7 categories and 96 tags in total. It's incredibly difficult to define mutually exclusive codes for the content we're ...
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Eliminate Qualitative Predictors (working in R)

So I'm a totally newbie to the field of statistics. I'm working on a project where I have a quantitative dependent variable that I'm supposed to predict using a mixture between quantitive and ...
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2 votes
0 answers
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Reliability and reconciliation for multiple open-coders

I recognize this may be partly a question for qualitative researchers, but I'm not sure which Stack Exchange is theirs. The basic context is that we have a series of text excerpts from newspaper ...
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Regression qualitative explanatory variables

I am trying to run a regression, taking StudentMarks as the dependent variable and regressing this on the following variables: Nomadic/Semi Nomadic: if the Child lives in a nomadic family then ...
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1 vote
1 answer
63 views

Design of experiments. Parameter measurement not continuous

I'd like to do a design of experiments which involves 4 factors, I haven't decided which design yet, prolly, Taguchi or fractioned factorial one. I used to work with measurable effect but in this ...
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1 vote
1 answer
239 views

CDT for Multiple Correspondence Analysis (MCA): what if there are multiple modalities selected for one variable?

I have the following set of qualitative data: ...
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1 answer
252 views

How to do future prediction with year as a qualitative predictor in regression model?

This is a general question. Hypothetically, I have a polynomial regression model where year is a qualitative predictor with multiple classes, converted into binary dummy predictors. E.g., if I have ...
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2 votes
1 answer
154 views

Is it desireable to analyse questionnaire responses with standard methods of statistical analysis? [closed]

I'm a bit puzzled how to analyse self-report questionnaires (for example psychometric studies). For example, consider a standard Hamilton Rating Scale for Depression which comprises 21 items with ...
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0 votes
1 answer
201 views

Using Nvivo to analyse changes over time

I am currently undertaking a Thesis research paper where I am seeking to explore and understand how views on a certain topic have changed over time as reported in the media. I am going through a ...
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1 vote
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443 views

NVivo IRR Test of Content Analysis Data: How do I interpret each row of Kappas?

I am currently working on a research project that involves content analysis of secondary published data (corporate sustainability reports) by U.S. companies. In order to capture the data, I and two ...
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1 vote
1 answer
630 views

After calculating inter-rater reliability, which data (e.g. consensus data?) should be used for further analyses?

My study used 2 raters in a fully crossed design to code 1) a categorical variable and 2) a continuous variable (i.e counting the number of times something happened). My question is, after ...
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Simulating qualitative interaction in survival analysis

I am trying to simulate the survival data that can fit the model: $$h(x) = ho(x) exp (a_0*Treatment + a_1*Treatment*x_1 + a_2*Treatment*x_2)$$ Whereas treatment is an binary variable (0 = control ...
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1 answer
741 views

Regression with Quantitative and Qualitative independent variables

I'm new to statistics and I would greatly appreciate any help on this. I have a response (heart beat, a numerical variable) and five other independent variables. Four are numerical (Age, Weight, ...
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1 vote
1 answer
2k views

Categorical or Quantitative?

A colleague and I had a conversation about whether the following variables are categorical or quantitative. 1) Social security numbers 2) Phone numbers 3) Postal zip codes We agreed that all three ...
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1 vote
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Level of significance for qualitative ordinal data

I have three sets of qualitative data (n=20). Each has four categories (0,1,2,3) with the data shown in percentage. What would be the best way to show if the differences between them are significant? ...
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0 votes
1 answer
657 views

What type of regression for qualitative dependent variable

What econometric analysis can be used to study the impact of quantitative independent variables on a qualitative dependent variable? Basically, how do I do conduct a multiple variable regression where ...
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2 votes
2 answers
3k views

Labels for correlation coefficients

How could we attribute labels for correlation coefficients in order to facilitate reading the data specially for non-technical people or in qualitative analyses? For example: $\rho > 0.9$ - ...
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About the appropriate regression model

I have a quantitative dependent variable and all my explanatory variables are qualitative (binary or multi-category). I need to analyze the impact of each level on the dependent variable. I also need ...
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3 votes
2 answers
3k views

How to compute Kendall tau for more than two variables

I am new to statistics. I decided to use Kendall tau correlation. I want to find correlations between every variable of the data set. (For example, if there are three variables in the data $x, y$ ...
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1 answer
407 views

Qualitative or quantitative?

If I went through a box of candy which contains 4 types of flavor (orange, grape, apple, strawberry) and recorded the number of each flavor in my worksheet, what is the type of data that it is ...
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Data capture in psychological treatments - nonmandatory random repeat questions

this is a query for approaching a prospective exploratory study in psychological treatments It is not very easy to monitor response to psychological interventions. Usually there are standardized ...
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1 vote
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Quantitative method to determine necessary and sufficient causes [duplicate]

I am attending a qualitative methods conference in social science, and one of the speaker argues the following. In the two graphs below, a researcher using regression would see two regression lines ...
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1 vote
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Comparing Percentages Between 2 Groups When Each Group's Total Percentage Exceeds 100

I am comparing the rate of specific Response Patterns A through L among students in Group 1 vs. Group 2 (rates for the first five patterns are exemplified in the table). These are response patterns ...
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1 vote
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Trying a multivariate analyses on time series (with R)

I got measures of one variable (that behaves as a time series) for different conditions (some quantitatives, but mostly are qualitatives). For example, this is a "fake" representative plot of this ...
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1 vote
2 answers
11k views

Correlation between quantitative and qualitative variables

I have a dataset composed by 5000 observations. Each observation contains the income per year of a person (from 50 to 50.000.000) and the fact of having a car (yes/no). I would like to check if a ...
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5 votes
1 answer
2k views

How can reliability and validity of content analysis be quantified when there is only one person coding the data?

How can reliability and validity of content analysis be quantified when there is only one person coding the data?
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How to analyse qualitative interviews coded on a 1 to 4 ordinal scale?

I'm a student helping a professor with some research interviews done in QSR Nvivo. Basically the interviews are coded in 4 outcome categories: solely positive generally positive with a few ...
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