Sample size calculation for multinomial logistic regression model?

May I know how to do Sample size calculation for multinomial logistic regression model?

10 November 2018 9,690 3 View

How to standardize coefficient in multinomial logistic regression model in SPSS?

(1). How to standardize coefficient in multinomial logistic regression model in SPSS? (2). After standardization of the coefficients in different multinomial logistic regression model, can we...

10 November 2018 7,648 0 View

How long can i put my sciatic nerve tissue in the formalin solution for future immunofluroscent staining?

how long can i put my sciatic nerve tissue in the formalin solution for future immunofluroscent staining?

04 May 2018 265 0 View

How to quantify axonal loss without taking nerve biopsy but take nearby tissue in carpal tunnel syndrome?

I plan to take some tissues nearby while doing open release for carpal tunnel syndrome to quantify axonal loss of the injured median nerve. May I know any good laboratory techniques ? Thank you

01 February 2018 9,282 1 View

How to check multicollinearity of IVs in ordinal regression model using SPSS?

Dependent Variable (DV) is ordinal data. Independent variables (IVs) are continuous data. Using SPSS, Multicollinearity test can be checked in linear regression model. However, this is required...

11 December 2017 4,795 4 View

How to deal with irrational but statistically significant predictor in the model?

I have a dilemma when doing bootstrapping method to examine my model: I identified predictor A & B in my regression model as significant estimates. However, it can be rational only when (A...

10 November 2017 7,975 9 View

How to determine accuracy of predictors in ordinary regression model using SPSS ?

I have created an ordinary regression model with acceptable model-of-fitness, significant predictors, no sig. of test-of-paralelle line etc. Now I wish to determine accuracy of my predictors of...

10 November 2017 7,364 9 View

How is the performance of the ROC curve acceptable for publication?

I have sort out cut-off values of variables for differential diagnosis using an assessment tool. Although all the cut-off values are significant, however, the area under the curve (AUC) are from...

08 September 2017 9,555 2 View

With a poor performance in ROC curve of the model, does that mean the model is useless at all?

I created a binary model with results as follow: 1). Omnibus Test (Chi-sq.=31.705, p0.05) The model was statistically...

01 January 1970 3,875 5 View

How to confirm the tissue that I am going to test is hippocampus?

I am going to test rat Hippocampus using ELISA. Before that, I wish to confirm if the tissue I am testing is hippocampus. So I am going to use H & E staining to exam the structure. May I know...

01 January 1970 5,467 3 View

Binary Logistic Generalized Linear Mixed model in SPSS. Is it doable?

I want to analyses the proportion of swimming sperm of three species of fish in two salinities. To analyse the proportion of swimming sperm in a Generalized Linear Model, I would use a Binary...

03 March 2021 2,297 3 View

Guidelines for survey (question type) analysis?

Hi. Please tell me what guidelines should i need to follow for questionaries' type research work in India. It is not hospital based work, we are conduction basic institutional based qualitative...

03 March 2021 2,037 3 View

What test should i use in comparing the correlation between categorical and continuous variables?

Dear all, I have the variable (Surgery duration) represented by values in minutes and the variable (preoperative neuropraxia cases) represented as (Yes/No) values. I want to compare these two...

03 March 2021 5,427 5 View

Logistical regression using SPSS for a dichotomous dependent variable, with an independent variable of 1, 2, 5 and 10 seconds?

I have an experiment with 28 participants The independent variable is the times 1, 2, 5, and 10 used as the cross hairs during a task These 4 times were tested using 4 different blocks, each...

03 March 2021 9,692 2 View

How to find the mean, SD and CI in SPSS?

Hi, I hope that someone can help me with this task: I have 5 groups of participants which are numbered in SPSS from 1 to 5 (according to their group number) and are all under the variable group....

03 March 2021 506 3 View

What degree of missing data in a particular case/participant results in Expectation-Maximisation no longer working?

I'm dealing with a mediation model and am using the PROCESS module in SPSS. Due to SPSS and PROCESS being limited in the imputation methods - being unable to handle multiple imputation - the other...

02 March 2021 4,362 1 View

Waters 2707 HPLC autosampler problem?

I am using a 2707 waters HPLC device. When I try to inject a sample, it says missing plate or rack. I changed the needle and calibrated its position but I still get the same problem. I even get...

02 March 2021 1,408 1 View

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02 March 2021 932 1 View

How to code open-ended questions in SPSS?

Hello all, In SPSS I am going to code 2 open-ended questions. I have already read all the answers and I made a list of the most important categories to which I can code the answers. This question...

02 March 2021 1,757 4 View

The procedure compute?

02 March 2021 5,204 3 View