I am conducting a Hunter-Schmidt meta-analysis. When a study assesses a construct using a one-item measure, what should I enter as the alpha?

I am conducting a Hunter-Schmidt meta-analysis. When a study assesses a construct using a one-item measure, what should I enter as the alpha? I calculated the N-weighted average reliability and...

10 November 2018 7,992 0 View

In a meta-regression, is it possible to have a b weight as high as .75? How do I correctly interpret the B weight in a meta-regression?

I have run an analysis where I am examining whether the percentage of females in the sample moderates the relationship between experiences of mistreatment and withdrawal behaviours. The b weight...

05 June 2018 5,807 0 View

Justification for using Hedges and Olkin in IO Psychology with correlational data?

I would like to use Hedges and Olkin to run a meta-analysis; however, they do not provide a method for correcting for unreliability. My measures are not 100% reliable. Is there any justification...

11 December 2017 4,750 2 View

Is there research comparing the implications of need satisfaction depending on how the needs are satisfied (i.e. by the context or the person)?

09 October 2015 4,752 7 View

Should hypotheses always be based on a theory? Can someone refer me to a research paper that emphasizes the need for theory driven hypotheses?

Should hypotheses always be based on a theory? I will provide an example here without variable names. I am reading a paper where the authors argue that X (an action) should be related to Y (an...

08 September 2015 1,025 64 View

If a theory proposes that x relates to y, but there are so many boundary conditions that would eliminate the relationship, shouldn't we just change x?

If a theory proposes that x relates to y but there are so many moderating variables, that when considered, the relationship between x and y becomes non-significant, does it make sense to argue...

08 September 2015 9,333 8 View

Why do the residuals need to be normal when carrying out multi level modeling?

08 September 2014 3,269 7 View

Syntax for Log Likelihood in R?

I am analyzing results from a daily diary study in R using the nlme package. I am using hierarchical linear modelling and am not sure which code to use to examine whether the latter model fits...

06 July 2014 3,728 5 View

How to carry out Multilevel Modeling Person Centering of my predictor variables?

I am analyzing data from a diary study (multilevel modeling) and based on previous research I want to person-mean center my predictor variables. One of my predictors is work-family conflict (WFC)...

05 June 2014 8,127 9 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 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

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 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

After a reference from Int J Body Compos Res, can any body help?

Hi, I am after the reference below, my library says it cannot obtain a copy either locally or internationally, any help appreciated! Chris Wang ZM, Heshka S, Wielopolski L, Pi-Sunyer FX, Pierson...

03 March 2021 6,193 1 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

Do we need to write protocol for a second study of a systematic review that has been registered and published?

I have conducted and published a systematic review and meta-analysis research with the topic related to public health and health pomotion (protocol was registed in PROSPERO). Now we want to...

03 March 2021 8,920 3 View