SPSS (Statistical Package for the Social Sciences) is a proprietary cross-platform general-purpose statistical software package.

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168 views

Repeated measures ANOVA with missing data

I have a DB with multiple missing values (scale, ordinal and nominal). I used multiple imputation to fill in these missing values. How can I perform a repeated measures ANOVA on these (5) datasets? ...
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3answers
10k views

How do I create subscales based on sets of items in SPSS

I have a 37-question scale, where each item belongs to one of four scales. The items for each scale are interspersed. How can I compute a scale score for each of the four scales? I need to be able ...
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24 views

Logistic regression, separating variable (moderator) true in population! [duplicate]

I already checked other posts in this area, but still couldn't get a fit to my issue: I have the following preconditions: Software: preferred SPSS v21, possibly R Sample size: 5655 (will get around ...
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0answers
8 views

What is the basic way to analyze data from a Likert scale? [on hold]

5 - point Likert Scale: SA = Strongly Agree = 5; A = Agree = 4; N = Neutral = 3; D = Disagree = 2; SD = Strongly Disagree = 1 Here is a sample of the results:(x) number of participants ...
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14 views

Needed tools for small size sample [on hold]

I have a small sample size of 19 participants, which correlation type should i use, and what other tools i must interpret to get valid results versus the hypothesis?
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13 views

Creating a scatter plot with multiple (>10) variables from repeated measures in SPSS [migrated]

Some explaining facts in the beginning: I have got my data structured in SPSS in the following way. I've got 20 variables (case_number, a_1, b_1, c_1, a_2, b_2, c_2, ....) The variables are named in ...
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1answer
30 views

How to find statistical significance on SPSS?

i have 3 separate variables - Depression, Anxiety and Stress - each of them have been answered as Yes or No. These were answered by Case group and the Control group. Now I need to find if each of ...
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1answer
489 views

To find significant differences between means using repeated measures GLM

I am new in using SPSS and stuck with General Linear Model [which is just linear model] procedure. I have 8 cognition variables like latency, thigmotaxis, spatial, quadrant, nt quadrant, proximity, ...
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2answers
1k views

mediation analysis when mediator is categorical (SPSS)

I want to do a mediation analysis, with the following variables: ...
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1answer
17k views

How to calculate validity of questionnaire in SPSS?

I have 3 types of questionnaires, A 15 item scale with each item on a 7-point Likert type scale. Six subscales each containing different number of items 21 subscales each containing 4 items. ...
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0answers
10 views

SPSS - Identifying cases with identical case ID, AND similarity on another variable [closed]

Say I've got data with 2 variables: ID, and code. ID | CODE 1 | 54 1 | 55 2 | 55 2 | 55 3 | 54 3 | 55 I want to make a new variable that identifies when cases ...
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9 views

SPSS Binary logistic regression incoherent result after excluding outliers [duplicate]

I'm using binary logistic regression for my master thesis and after running the regression for a a few specific variables I get the following resutl: Then I created a filter to run the regression ...
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1answer
28 views

Why do we ignore the main effects when the interactions are not significant in a three-way ANOVA?

I'm following an SPSS guide online, and the procedure is to first test for a three-way interaction. In my case there was no sig. three-way interaction. Then the procedure asks me to consider two-way ...
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1answer
415 views

SPSS - Calculation of confidence intervals in estimated marginal means of repeated measures ANOVA

I used SPSS to do a repeated measures ANOVA including one within- and one between subject factor. Let's say the between-subject factor is treatment group with levels treatment and control, and the ...
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0answers
10 views

How to make Likert Charts in SPSS [closed]

Hello I am a beginner in doing Likert charts and I was wondering if there is any video on internet that can guide me on doing Likert charts using SPSS. My questionnaire have many questions that used ...
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1answer
38 views

Univariate cox regression hazard ratio in SPSS

I'm currently doing some analysis for a retrospective cohort study of biomarkers in cancer patients. I've noticed that some papers have utilized univariate cox regression analysis to generate a hazard ...
22
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6answers
7k views

Is PCA followed by a rotation (e.g. varimax) still PCA?

I have tried to reproduce some research (using PCA) from SPSS in R. In my experience, principal() function from package psych ...
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1answer
17 views

Mediator reverses direction of causal variable. How to interpret?

I'm running a mediation in SPSS as per Baron and Kenny's guidelines (using regression). X is a dichotomous variable; M and Y are continuous. Step 1) X-->Y (r = .07, p = .03) Step 2) X-->M (r = .45, ...
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3answers
98 views

SPSS - How do I analyse two categorical non-dichotomous variables?

I'm having some issues running an analysis with two categorical variables that are both non-dichotomous... Some background information on my study: My study focuses on how young adults sexually ...
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0answers
43 views

Can I create an Index score using factor scores as weights?

I am creating an Overall Customer Satisfaction Index score based off of 4 factors that comprise satisfaction for callers to a call center: A representatives concern for your needs; ease of navigating ...
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0answers
2 views

Need to create 4 variables each on a recode based on values of one single variable in SPSS [migrated]

I wish to create the multilevel Clinical Classification Software (CCS) created by the Healthcare Cost and Utilization Project (H-CUP) (https://www.hcup-us.ahrq.gov/toolssoftware/ccs/ccs.jsp). What ...
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3answers
1k views

Unequal sample sizes for two-way repeated measures

I have 3 different treatments with the observations of 6 different repetitions. However, all these different treatments (groups) have different numbers of patients. The first group has 26 patients, ...
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1answer
292 views

optimal scaling / CATREG for imputed data

I have a data set with 5 different kinds of nutrient statuses and I want to see whether they are associated with categorical / ordinal grades at school. I have multiple covariates which I will ...
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0answers
18 views

Degree of freedom in post-hoc test

I have a crucial question (crucial for a statistic beginner as me...) I have run a 2x2 repeated meausure ANOVA between subjects where I had: Factor Between: Subject Category (14 musicians/14 ...
2
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2answers
51 views

Help on deciding how to perform a regression analysis on my data, and why? SPSS, Count model, Panel data

I am currently in the process of analyzing some data for my master thesis, however I have had little statistical teaching, and none regarding panel data regressions. My dependent variable: Count data ...
2
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0answers
10 views

Interpreting interaction between time and time-varying predictor in mixed models

I have measured the DV and predictor at 2 timepoints in a single group, and am using the MIXED procedure in SPSS. I want to see whether change in the DV over time is predicted by change in the ...
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1answer
17 views

How do I group data based on a single variable in SPSS? [closed]

I have a large dataset with each data representing individuals. Now I need to know the average of outcome occurrences per family. I have IDs for each family and each family has a different family ...
6
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1answer
101 views

Predicting variance of heteroscedastic data

I am trying to do a regression on heteroscedastic data where I'm trying to predict the error variances as well as the mean values in terms of a linear model. Something like this: $$\begin{align}\\ ...
2
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0answers
16 views

Test analysis - repeated measures

I lack the experience and can't find an answer anywhere at the moment. The situation is as follows: I would like to test a new device measuring the heart rate of a patient. For this, I have observed ...
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0answers
39 views

Nominal or ordinal?

I've got several variables in a dataset of which I'm not really sure what type of data they are: nominal or ordinal. Context: the variables are part of a dataset in which each case a student. Of ...
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0answers
8 views

Data exported by Survey monkey to SPSS [closed]

I conducted my survey using survey monkey website and I had option to import data using SPSS. My question is: Are the type of variables generated during import correct or do I need to check the type ...
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0answers
19 views

Can Amos SEM deal with binary dependent variable?

Hi I'm doing a SEM using AMOS. The outcome is the success of consumer satisfaction, which is measured by 2 questions. How satisfied are you? (1-7) How likely would like to recommend ? (1-10) If ...
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0answers
8 views

How to test time series data using principal component analysis SPSS?

First of all I am very much beginner please understand :) I've seen tutorials on how to do principal component analysis on questionnaire datas, however I cannot find any tutorial using time series ...
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11 views

Bayesian SEM in AMOS - suggest resources?

I'm looking for resources regarding Bayesian SEM estimation using AMOS built-on procedures (I have ordered categorical data). Google gives some basic resources on theory, but not so much on ...
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0answers
27 views

Logistic regression: Absolute values for P

I am stuck with a problem (actually two problems). I have a dataset of about 150 cases and 30 or so dichotonous (yes/no) parameters. I selected 6 parameters (after literature study and crosstabs) for ...
2
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1answer
89 views

Can I do a dependent t-test if pre & post were anonymous?

I am trying to analyze the following case study using SPSS. What I have done so far as part of my research is to conduct a case study to measure the affect the introduction of different technology ...
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0answers
24 views

Which test(s) to use?

I’m having a dataset that needs to be analyzed but I’m a bit worried about picking the appropriate test(s). It’s been a while since I last really used statistics and SPSS. Therefore I would kindly ...
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0answers
5 views

Is Eta a good way to calculate a relation in between interval and nominal variable using cross tabulation?

I need to figure out if the topic of an application (nominal variable with 6 categories) is associated with a certain skill category (I have 3 skill categories represented by 3 variables with interval ...
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0answers
15 views

How to interpret the direction of a covariate's effect in a 2-way ANOVA?

I use SPSS's GLM (general linear model) to analyze an data set based on a 2x2 between-subjects experimental design. The design has two factors: a). congruence (yes or no) and d). primed image ...
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1answer
144 views

3 way mixed ANOVA & pairwise comparisons effect size

I have a 3 way mixed ANOVA, where I have 2 significant main effects, one significant two way interaction and a significant three way interaction. I've been told to not describe the lower order ...
2
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1answer
274 views

One way Anova Test validation

Let me give you an example to show what i am trying to. Let's say 50 patients started a cure for a disease and it took 2 months. So, I want to compare the first month's tumor sizes to the second ...
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1answer
29 views

Logistic regression coefficients and exp(coefficients) meaning and relationship

Suppose that we have this output for Logistic Regression: Coef EXP(Coef) X1 2.45 11.67 X2 0.40 1.449 X3 -4.1401 0.0159 Here ...
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0answers
21 views

Which Analysis would I use???! [closed]

am writing a fake study. In the study there are 4 groups which correspond to times. (1:00pm, 2:00pm and 3:00pm) The participants took a "cognitive enhancing drug" at these time intervals and I am ...
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0answers
21 views

Decision tree analysis in SPSS

I am newbie in the field of analytics so my question could be naive. I tried searching the answer before posting but could get my hands on the exact answer I am looking for. I have a simple model to ...
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0answers
12 views

How to input 2AFC data into SPSS

I've conducted some thresholding experiments using 2AFC. I'd like to input this into SPSS to run some analysis but I can't think of how to organise my variables. I mean this question as more a ...
0
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1answer
21 views

Manually scoring logistic regression model in SPSS? [closed]

First off, I'd like to apologize for my cluelessness, but I've come across a problem that I honestly have no clue how to circumvent. My programming skills are extremely limited, and my company uses ...
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0answers
8 views

Is TEMPORARY different in new versions of SPSS? [migrated]

I ran this in SPSS 22: TEMPORARY. SELECT IF (indicator = 1). COMPUTE new = old - 2. LIST /CASES = 10. LIST /CASES = 10. The variable new appears in the first listing but not the second. Now, this ...
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1answer
403 views

Find out if there is a way to create BMI weight category variable

I am working on a project and have to find a way to break my data into percentiles. The variables that I already have are gender, age in months and BMI. If I am able to calculate the percentile that ...
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1answer
87 views

How can I find tendencies in specific cases between two groups?

I'm doing this project where we are investigating whether social networks can influence peoples distinctiveness. Briefly summarized, we have primed a group with a social media and another is the ...