0
votes
0answers
15 views

Correlation? Factors affecting academic performance of students based on their gpa? [on hold]

My friend's thesis. just helping her with the data analysis "FACTORS AFFECTING ACADEMIC PERFORMANCE OF STUDENTS BASED ON THEIR GPA" Divided it into: Internal Factors: Class Schedule & parental ...
0
votes
0answers
13 views

how to offer recommendation? comparison of satisfaction between two groups?

My research is "level of satisfaction in relation to customer service: comparative study between 2 fast foods my questionnaire consists of 19 questions. I'm using SERVERF, the 5 dimensions. 8 ...
0
votes
1answer
19 views

What can I do to if I have a nominal dependent variable and scale independent variables?

Our dependent variable is a nominal variable that asks respondents "would you share this video?" with the responses being either yes or no. The hypotheses we are testing are all relational directional ...
0
votes
1answer
26 views

SPSS: Determining the direction

Background: Group A the control group uses a website 1. Group B the treatment group uses website B. The expected result is that Group B will have a higher understanding than group A. Hypothesis: The ...
0
votes
3answers
61 views

Analysing the correlation of two ranked scales

So I am researching if self-esteem has an effect on hearing aid satisfaction in patients. The patients have filled out two questionnaires, the first measuring self esteem, the second measuring their ...
4
votes
1answer
176 views

Statistical significance for comparison of linear regression models

I have two linear regression models (with the same predictors) that try to estimate two different (although related) features of the same population. I am analyzing the hypothesis that these ...
0
votes
0answers
45 views

How to get overall result from One Sample t-test in SPSS?

I'm evaluating a questionnaire based on the Likert scale and Here's the problem. I want to assess job satisfaction which has been sub-categorized into ,let's say, 5 questions ;so I have 5 different ...
32
votes
7answers
3k views

Why is “statistically significant” not enough?

I have completed my data analysis and got "statistically significant results" which is consistent with my hypothesis. However, a student in statistics told me this is a premature conclusion. Why? Is ...
0
votes
0answers
100 views

Mixed Model t Test (Toothaker’s t-Test)

I'm trying to do a follow up test for a mixed model ANOVA, and I figured that I need do a Mixed Model t test also known as Toothaker's test. I just don't know how do it. I was wondering if anyone has ...
2
votes
2answers
3k views

SPSS from two - to one tailed test

If any of you would like to confirm if my understanding is correct or wrong, I will be most grateful. I have done an independent-samples t-test (two-tailed), for difference between women/men how they ...
0
votes
1answer
123 views

Hypothesis testing with latent variables

Summary: I created a model that tries to explain success factors in crowdfunding initiatives. I collected the data by scraping it directly from the crowdfunding platform. That of course limits my ...
1
vote
1answer
248 views

Likert scales: analyzing scales or items?

I am writing an essay based on a survey I made. First I set my hypothesis = Who is an impulsive buyer tend to be loyal to shop X. Than using "marketing scales book" I set different scales for each ...
0
votes
0answers
24 views

Technique for neurovascular experimental analysis?

I'm trying to run statistical analyses on the data I got from some neuroscientific experiments. Because I don't have a solid math background, I would really appreciate any input as to what tools to ...
2
votes
0answers
102 views

Test regression parameter against a constant in SPSS

This is a pretty basic question, but I can't find an answer by searching for different statements of the same problem. Is there a straightforward way to test if a regression parameter is different ...
1
vote
2answers
3k views

Which statistical test to use for Likert scale questionaire

I need help on determining what tests to use in SPSS. Let me provide some background on my research: I am doing a research on system automation of leave management in a company (which is still using ...
0
votes
0answers
44 views

Comparing tests for staging cancer

I am comparing 4 different tests for the evaluation/identification of cancer. One is a continuous variable yielding cut-off values based on both the mean and the median of 5 consecutive measurements ...
1
vote
2answers
597 views

Test to determine significance for non normal data with different variance and unequal n?

How can I find out if the differences in length and width of cut marks left in fabric are significantly different between groups (knife types)? Additional Information Groups: ...
3
votes
1answer
801 views

How to interpret relatively good -2LL value & Nagelkerke $R ^2$ without any significant IVs

My model's chi square says my 'full' model isn't significantly better than the null model. But my -2LL is 80 (isn't this pretty low?) and my Nagelkerke $R^2$ is .20. On the other hand, there isn't a ...
2
votes
1answer
151 views

How to determine if a change in F value when introducing a covariate, is significant?

My question may be very basic but I hope that you can help me. I have got two groups (A and B). I am measuring two continuous biological measures (X and Y) which are significantly positively ...
2
votes
4answers
999 views

What's the appropriate spss test?

Context I have 25 men and 25 women as participants, and they did exactly the same thing: Each of them heard an attractive dialogue and they had to choose between a photo of a woman in red and a woman ...
0
votes
2answers
692 views

What test do I use / how do I show in the analysis that I measured everyone twice?

I have already asked a question on this forum about this, but as I changed my experiment a bit and I am still confused. I conducted an experiment in which 25 men and 25 women listened to an ...
3
votes
1answer
4k views

How can we compare multiple proportions from multiple independent populations to evaluate implementation of a treatment?

I want to compare sixteen Case Fatality Rates (deaths per 100 cases) of a particular disease from sixteen different populations across 7 years. Each population received the same treatment but some ...
6
votes
2answers
474 views

Hypothesis testing that one time-series of a measure of entropy doesn't belong to a population

Disclaimer: I'm a software engineer, not a statistician, so please forgive any blunt error :-) I have a set of time-series "curves", each measuring the entropy of a given artifact. Now, I'm standing ...