which test

Hello everyone I'm carrying out a research which tries to analyse factors affecting coffee consumption behavior, there are 7 independent variables on hand and 1 dependent variable which is coffee consumption behavior Is Multiple regression analysis can be used while there is relation among...

Hi there, I want to analyse the impact of turning a production line on and off (variable X, binary) on the environmental quality of wastewater being discharged; more specifically, the suspended solids content (variable Y, continuous). I have a set of daily data for a whole month, which shows if...

Hello, I've just finished my placement year in my undergraduate degree but I'm really stuck with which statistical tests I need, and how to input the data into SPSS. Any help would really mean the world. Introduction to study: Working within a community mental health team. Researching whether...

I am doing a research project in which I have collected variables on two separate groups. One group uses a self testing laboratory machine which I have labeled as "patient self testers" (PST). The other group does not use the self testing machine, "non-patient self testers" (non-PST). The intent...

I have a dataset of number of bacterial colonies grown from 11 water samples taken from 3 different watersheds. I want to know if the land area, population, number of waste water treatment plant outfalls, and number of septic tanks in the watershed have any effect on the bacterial growth. The...

I'm trying to test whether time (IV1) has an effect on the relationship between a specific personality feature (IV2, quasi-continuous) and scores on a social cognition task (DV, quasi-continuous). Participants are placed into either a timed or an untimed condition of the social cognition task...

Hi all, Apologies for the nature of my post but I'm a relative beginner to statistical tests. What I would like to know, is if I have two sets of data (as I'm a microbiologist, the data sets are likely to be bacterial colony size measurements on two different agar plate types), why would I...

Hi, I've got a survey with 50 responses, and want to test for difference between three subgroups, and strength of association. I'm not happy to treat data as continuous. But I'm not sure whether I should use Kruskal-Wallis to compare rating scores between groups, or Fisher's Exact Test...

Hello kind stats people, I'm in a bind! In my PhD I'm studying fertilisation success of 2 species of fish when they mate with each other. So how does mating success as a hybrid compare to that of the pure male. And just to complicate things I have them mating in different orders to see if...

Hi all. I have a very shallow understanding of statisitics so would really appreciate if someone could help me with what test to use. Say I have two groups of people (A and B). I want to compare the relationship between stress and smoking in these two groups of people. Variables Group (A...