cronbach's alpha

Recently, I'm doing a pilot study for my questionnaires however I got 0.05 for my cronbach alpha. My questionnaires consist of two part : 1. Demographical parts ( also include things like likert scale) 2. BDI inventory ( Beck Depression Inventory) The problem is the result of SPSS told me...

Hi all, This may seem like a silly question, but I was wondering if I should remove outliers prior to running reliability analysis or run the tests with outliers included. I am hoping to get a Cronbach's alpha values for three questionnaires that I used in my research.

Hi, As I am working on the statistical research for my graduation, I encountered two problems; 1) I am measuring two multi-dimensional concepts, and I used a factor analysis to measure the components. One of these concepts turned out to consist of 6 components. I regrouped all items...

Hi everyone, I'm working on data for my dissertation and had a question regarding Cronbach's alpha. In a pretest, I asked just over 100 subjects to rate their perceptions of privacy of nine different environments. The scale used for each of the nine environments was the same six-item...

Hi, My research is on people on particular visas in the US, i.e., immigrants and mostly Asians. In my methods section when I write about the measures, where do I get the Reliability, validity, cronbach alpha figures from? Firstly, do I search for previous research on Asians or on...

Hello Wondering if someone could clarify I'm developing a new measure with 10 constructs. Each construct has between 4 - 6 items. I've been assessing the reliability for each construct using both Cronbach's alpha and composite reliability scores. For most constructs, both...

I've done a study for my PhD comparing different methods/conditions that might affect inter-rater agreement when rating the creativity of other people's drawings. I had 600+ drawings that needed to be rated, so it wasn't feasible to have the same few people rate all the drawings. So 24 raters...

Hi, I am unsure of if I am to use different tests of reliability for different types of data sought by the same questionnaire, or if one test may be applicable to all of my data? I have a mixture of nominal and interval data. When testing the data using Alpha my results came back very low...

Hi, I have 100 participants answering an aesthetic scale ( 8 items in the scale) in my data. The question is "rate the following statements from 1= strongly disagree to 7= strongly agree". I copied 2 statements from my scale below. 1/Owning products that have superior designs makes me...

This will be an easy question for someone but I just can't find the answer via google or my text books I have a 30 item measure, an observation schedule, not standardised, and I would like to cite cronbachs alpha for it. I used it in an n=3 within subject design (psychology) where each...

Hey everyone, For a small research I had to do I used the Rosenberg Self-esteem scale and tried to look for correlations with aggression using the Buss Perry Aggression Scale. Even though it proved very much insignificant I also found a negative crombach's alfa linked to the rosenberg...

Hi there, I want to construct a scale of 'contacting government' based on the question 'Please indicate if in the past year you contacted govt about any of the following services.' --There is a list of 14 different topics. The factor analysis (result attached) shows what to me what are...

Hi I have a test whose reliability I want to calculate, using Cronbach's alpha. The first 18 questions are scored 0 or 1 (right or wrong). The final 7 questions are scored 0, 1 or 2 (because they are not dichotomously right or wrong, there exists a 'half right' possibility). Is it correct...