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by ella_n
Thu Jul 14, 2016 6:37 am
Forum: General
Topic: Non-Equivalent Control Groups Design/ Quasi-Experimental Design
Replies: 0
Views: 331

Non-Equivalent Control Groups Design/ Quasi-Experimental Design

Hi, I would like to know what analysis I should choose to compare the difference between 3 groups. Here's the design: I have 3 conditions (pictures of either underweight, normal weight, or overweight models, as C1, C2, C3), and I assign the participants to each condition according to their own BMI (...
by ella_n
Tue Sep 29, 2015 6:37 am
Forum: General
Topic: Variables that are multiple responses for analysis
Replies: 3
Views: 1098

Re: Variables that are multiple responses for analysis

Hello Jon,

If I would like to know if different activities play a moderating role in the revision time before and after some talks, what statistical test should I use?

Thanks,
Ella
by ella_n
Sun Sep 27, 2015 4:04 pm
Forum: General
Topic: Variables that are multiple responses for analysis
Replies: 3
Views: 1098

Variables that are multiple responses for analysis

Hello, I'm new to SPSS, and I have some issues with the multiple responses question type. In my research, there is a question asking what extracurricular activities do children do after school, and the question has 7 choices, and allows multiple answers. I plugged in this question's data in this way...
by ella_n
Thu Sep 10, 2015 3:32 am
Forum: General
Topic: Negative Crocnbach's alpha when deleted
Replies: 1
Views: 898

Negative Crocnbach's alpha when deleted

When I was using SPSS for Cronbach's alpha in different sections of a scale, there was one item in a section that has a negative value. Can it be due to small sample size, or other reasons? What does it actually mean? Thank you <3

cron