Classically, a Likert scale was composed of the sum of many Likert items (ordinal ratings of the amount of agreement with a statement), where all the items were equally valid. Today the term sometimes is used synonymously with 'ordinal rating scale' (which may be based on only 1 item).

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Using R, are these methods valid for determining relationships among Likert scale responses (in different columns) that are nonparametric

I’ve been analyzing Likert scale and was hoping to get some guidance on the methods. The problem with Likert data, of course, is the controversy over whether to analyze it as ordinal or interval ...
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15 views

Comparing 5 pt Likert scale answers from two different groups (not the same size) [duplicate]

I have ~150 responses to a number of 5pt Likert scale questions along with lots of demographic data about my respondents. I'm now trying to divide my respondents into groups based on their demographic ...
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1answer
30 views

How to caculate power analysis in a descriptive study

Hi I'm currently doing a dissertation, its a descriptive quantitative study. The method of data collection is a questionnaire scaled by a 10 point Likert scale. To calculate the sample population ...
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1answer
25 views

Analyze a social flying service

I am writing a dissertation to obtain a Master's degree in Business Administration, but have no solid experience in statistical analysis. I have to analyze data from questionnaire in SPSS and I am ...
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16 views

Likert scale survey student response independence

We administer a confidence survey (likert scale) comprising of 30 items and have conducted PCA to examine dimensionality, item independence and the like. We also conduct student interviews to assess ...
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1answer
39 views

Easy and common way to separate latent classes from Likert-scale survey?

Let say, there are two 5-points Likert-scale questions "How do you like a flavor?" applied for two product samples. That is, each respondent tries two samples and evaluate them on Likert scale. ...
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Reliability for some of different types of likert scale [closed]

I have a questionnaire with 38 questions. 8 of questions are in nominal scale, 15 of questions are in ordinal scale (Likert 1 2 3 4 5) and 15 of questions are in dichotomous scale (1 , 2) Now, what is ...
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15 views

Derived Scale for Exploratory Factor Analysis

Is it appropriate to use a 10 point Likert scale for EFA in the form of Yes/No followed by strength of the response varying from Very Low to Very High? The scores would be assigned as follows Yes/VL ...
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1answer
30 views

correlation between variables not having the same number of responses

can I make correlation between two variable, one of them have 40 responses and the second variable have only 35 responses. taking into consideration that both variable are measured by 5 point likert ...
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1answer
36 views

Simple Analysis of Likert Result with Mode and Median

So I made a questionnaire using Likert Scale. Let's say that I want to know "user's satisfaction of new web interface", where I used 5 questions with Likert Scale to answer that one question. The ...
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1answer
73 views

Correlation between two Likert items with a non-monotonic relationship

One of the assumptions for Spearman correlation is that there is a monotonic relationship between the two variables. I've created a scatterplot for two Likert item variables, but it seems impossible ...
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1answer
21 views

How many hypotheses are needed when researching one category with multiple likert-scale question

I am currently researching two groups on their willingness with 5 questions on a 7-point Likert-scale. My hypotheses are: $H_0$: There is no difference in willingness between the two groups. $H_1$: ...
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2answers
32 views

Ordinal or nominal

I designed a questionnaire regarding teacher readiness to conduct / perform certain tasks other than teaching in the classroom. One of the items included is the period of service of the teacher. Here ...
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2answers
153 views

Do the residual plot and QQ plot look normal?

I am doing linear mixed model and would like to check the assumptions using residual plot and QQ plot. Here is my code: ...
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1answer
58 views

Generate random correlated categorical variables

Lets say I want to generate 100 observations of 2 likert scaled, normally? distributed variables with 10 categories (1-10) and a pearson correlation of f.e. ~0.8. I am aware that using pearson ...
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10 views

Which statistical test should I use for my questionnaire on Body Image? [duplicate]

I am doing a study on body image and how that differs for people depending on their age, race/ethnicity, and socioeconomic status. Should I be using a 2-way ANOVA test (between subjects) I will be ...
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1answer
31 views

Computation of Yes/No question and 7 point Likert scale into new variable

I could not find an answer to this specific question on the forum so ill make a new post. Thanks a lot for helping! I have 5 Yes/No question, and 5 7-point likert scale items (that each corresponds ...
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1answer
39 views

What statistical analysis should I use for Likert-Scale data? [duplicate]

I am trying determine if there is a significant difference in preference of activities between males and females.I'm using a survey with the following question on 7-point likert scale: Question 1: I ...
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1answer
34 views

Likert scale based composite variables

I am conducting a small research into the adoption of smart home technologies for elderly people. In this research I have conducted both questionnaires and interviews, with the questionnaire being ...
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14 views

Trend Survey Statistical Tests

I am designing a trend survey using a Likert style survey. I have three opinion questions, each with the same choice of responses ranging from Not Likely to Very Likely. Are there any statistical ...
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7answers
371 views

How to judge if 5 point Likert scale data are normally distributed?

I have read that the t-test is used when the population is normally distributed. How can I determine if my data are normal given that I am using 5-point Likert scale with a sample size of 100? What ...
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28 views

Can One Compare the Margin of Error of a 7-point Likert Scale vs 9- point Likert Scale

In many of our product tests and attitudinal studies where we ask for rating on Overall Liking (a product), product managers either use a Likert scale of 7 or 9-points with each point anchored (ex. 7= ...
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1answer
33 views

Likert scale and binary logistic model

If independent variables are measured in 5-point Likert scale and dependent variable is dummy, then can I apply logistic regression model here? How independent variables are put in SPSS?
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1answer
53 views

Curvilinear relationship between two Likert-Scales - is there any coefficient to measure it?

I have two Likert-scale variables, that values vary from "strongly disagree" to "strongly agree". Somehow I know, that many people who stronly disagree on the first scale, strongly agree on the second ...
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21 views

5 item Likert Scale - Continuous variable?

Which is the best reference/article to justify the use of a 5-item Likert scale as a continuous variable?
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20 views

Comparing two different questionnaires but both on a 5-point likert scale

I have three self-reporting questionnaires, all on a 5-point likert scale. Is it possible for me to use a Pearson moment correlation to compare the summation of measures between two questionnaires? If ...
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21 views

Regression to chose questions which better correlate with a 10 points likert like score

We have a survey with several questions with 5 likert scale points and we would like to compare the answers to those of another likert like question with 10 points. The approach we thought of is a ...
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Likert Item phrasing for postive and negative statements

To avoid some confusion, I am not referring to the scale, but the statement itself. Is there a rule to phrase the statements to capture the same conceptual meaning. For example: Positive: "The tool ...
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1answer
111 views

Factor analysis on non normal data ( Ordinal data of Likert Scale) [duplicate]

How to check the normality of data collected on 5 point Likert scale? As it is ordinal numbers not continuous. Using SPSS the Shapiro Wilk or Kolmogorov-Smirnov test indicate my data is not normal. ...
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2answers
61 views

Methods to change Likert Scale

Suppose I have two variables named importance of the product and satisfaction and I need to do comparison with these two. Variable Importance of product is in Likert scale 3 and Satisfaction is in ...
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1answer
98 views

Hypothesis testing based on Likert type data

I know this site is full of similar questions, but either their answers do not apply, or I'm missing something. I have data from a questionnaire. Responses are in the form of Likert items, some of ...
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0answers
46 views

Can you do a PCA on 3-point Likert to weigh items 20k responses

I am developing an inventory tool that has 21 items. I need to determine the weight of each of the items, as the presence of some may give a higher overall rating to a scenario than the presence of ...
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4answers
501 views

Is the sum of a number of ordinal variables still ordinal?

I have performed a survey where I have a number of questions which can be answered Strongly Agree, Agree etc. to Strongly Disagree. Some of the questions have been designed to measure the same thing. ...
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1answer
54 views

Survey data: finding the most significant predictors?

I have about 5,000 responses to a survey in which users were asked how strongly they agreed with a statement on a 5-point Likert scale. This response is my dependent variable - I want to find out what ...
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27 views

Comparing dispersion of survey items with different response categories

HI: I know there are couple of questions relating to comparing the same survey item with differing numbers of response categories, but I did not see a question that dealt specifically with this issue. ...
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37 views

Factor analysis: what are the total possible scores for calculated factors based on Likert scale responses?

I have two factors, Peer Social Interaction (PSI) and Sense of Belonging (SB). Four Likert scale questions correspond to each factor. I used the factor loadings for each question to create a ...
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28 views

Consistent Questionnaire Responses

I want to ask please questionnaire responses in Likert Scale. I have got some respondents who had consistent answers for a large number of questions. For example, over 75% or 80% answers (in different ...
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31 views

which test should be used to detect the effect of one variable on another?

I have conducted a research on four independent groups of students; one experimental and one control group at two levels. The design of the study was like a pre-test and post-test. I want to detect ...
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67 views

How to analyze full-factorial within-subject experiment with ordinal (likert) data?

How can I analyze an within-subject full-factorial experiment with ordinal data from likert scale (with repetitions)? I would greatly appreciate your help. Study design Here is a description of the ...
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2answers
204 views

Five-point or seven-point Likert scale?

I am designing a questionnaire by using five-point Likert scale. What is the advantage of five-point Likert scale over seven-point Likert scale? Thank you.
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2answers
123 views

Which Analysis to use? Likert Scale

I have 3 independent variables (1-5 Likert Scale) questions and I want to check how well these three can predict/explain my DV (1-5 Likert scale) The three independent variables are: 1. Quality of ...
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1answer
76 views

Correlation of likert scales for different questions

Can you correlate 2 Likert scales when the question for each one was different? I have 1 question which asks how concerned someone is about pollution. They rank this on a Likert Scale of 1-5 where 1 ...
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2answers
68 views

correlation between factors

I am new to statistics and SPSS. I have a questionerre having 30 likert scaled questions, and 5 factors each having 5 or 6 questions. I made the reliability analysis and no problem is found. all ...
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60 views

Can I convert my likert scale to numbers and then take an average in order to know if there is a correlation between two variabes?

I need some help about some data. I have an indicator of performance and a likert scale. Would it make sense if I assigned a value to each category on my likert scale (ex.: ...
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1answer
124 views

Hypothesis Testing using dichotomous and 7-point Likert scale

I am working on testing the following hypothesis: H1: People who are worried about their health will consume yogurt H0: People who are worried about their health will not consume yogurt I have ...
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1answer
97 views

How can I test if there is a correlation between a score and a likert scale?

I'm having difficulty finding out what I can do with my data set. It comes from a french reading test that have 30 multiple choice questions. For each of these questions: I have the facility value ...
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63 views

GLM, Regression analysis, or other

I need to resolve a question with the use of SPSS, but don't really know what model to use. The question talks about the environment (scale variable (from not at all concerned - very concerned)), I ...
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32 views

Correlating two Likert type items

I have done a survey using a questionnaire that involves Likert type questions. The answers range from 1 - Strongly agree to 5 - Strongly disagree. In this questionnaire I have included some control ...
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41 views

Ordinal logistic model in R

I have the neuropsychiatric questionnaire scores of 300 individuals, of which 200 are normal, and 100 have the disease. The questionnaire is divided into 12 categories (delusion, agitation, ... etc). ...
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Is it advisable to use t test for comparing two modules in SAP?

I have two independent samples from the maintenance and materials departments regarding the effectiveness of SAP modules. I have a likert scale data on a scale of five. Shall I use independent sample ...