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

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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 8,059 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 5,899 0 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)?

According to self determination theory, the three psychological needs for autonomy, competence, and relatedness can be satisfied by the context or by behaviours in which individuals engage. Is...

09 October 2015 4,821 7 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 9,426 8 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 1,169 64 View

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

1. Why do the residuals need to be normal when conducting multilevel modeling? 2. I conducted a square root transformation on my dependent variable to normalize the residuals. However, the data...

08 September 2014 3,368 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 3,826 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 8,276 9 View

Residuals in Multi Level Modeling: How can I examine whether the residuals are normally distributed using either SPSS or R?

I am conducting a cross-level interaction. How can I examine whether the residuals are normally distributed using either SPSS or R?

05 June 2014 2,108 4 View

How to learn more about SPSS and its Application?

I would like to learn more about SPSS and Its application especially in regards to data analysis. Please suggest me how I can learn more about it. Thank you so much.

11 August 2024 9,101 4 View

Can I base on reverse DNA sequences to perform alignment, convert to amino acids and GenBank submission?

I have reverse sequences (AB1 format), can I base on reverse DNA sequences to perform nucleotide alignment, convert nucleotides to amino acids and deposit the sequence in GenBank database?

11 August 2024 5,138 1 View

Baseline drift in HPLC? What causes this?

Hello, Why do i see this baseline drift when i compare my blank (black) to the sample (blue)? Any suggestions as to why this happened? Thank you!

11 August 2024 3,770 4 View

Text-Communication from the M1 Hand Area using BCI—and then there is Elon Musk?

Willett, Shenoy et al. (2021) have developed a brain computer interface (BCI) that used neural signal collected from the hand area of the motor cortex (area M1) of a paralyzed patient. The...

10 August 2024 7,180 0 View

Has anyone applied Python in the field of textile engineering for data analysis, automation, or smart textiles?

I'm currently exploring the application of Python in textile engineering, specifically in areas like data analysis, process automation, and the development of smart textiles. I'm interested in...

10 August 2024 7,429 2 View

How can I use the cif data obtained from rietveld refinement extracted via gsas2, for microstructural analysis using ETEX software?

09 August 2024 7,718 0 View

GC-MS retention index prediticon?

Hello experts, Does anyone know any free software about retention index prediction ?

08 August 2024 7,403 2 View

How are iso-frequency contours plotted?

Let's say we have a standard, regular hexagonal honeycomb with a 3-arm primitive unit cell (something like the figure attached; the figure is only representative and not drawn to scale). The...

07 August 2024 1,937 1 View

How to prepare the nanoparticle treated fungal sample for Environmental SEM analysis?

A fungal strain was treated with nanoparticles. We want to do an environmental SEM analysis. So could anyone share your views on preparing the sample? Thank you.

07 August 2024 5,307 1 View

How do you delete a duplicate pdf for the same paper on ResearchGate?

The first pdf file I uploaded had an error. So I uploaded an updated, corrected pdf of that paper with a different pdf name. I dpon't want the old copy to be download or read.

07 August 2024 9,508 1 View