In a hierarchical regression, block 1 results are different when I run them by themselves vs. when I include block 2. Why?

02 March 2015 3,536 2 View

Approaches to teaching analytical/critical writing to psychology undergrads?

07 August 2014 8,798 9 View

"Transparent" social sciences research w/ real-time results?

I'm looking for examples of "transparent" web-based social sciences research, where analyses are run in real time and results are shown to participants immediately afterward. Like, "thanks for...

01 February 2014 6,647 4 View

Public discussion of journal articles via PubPeer?

I like the idea of a public space for discussing and commenting on journal articles. Anyone here on ResearchGate using it? What's your experience been?

11 December 2013 3,894 2 View

Hilariously BAD empirical studies?

I begin teaching an undergrad psychology research methods class next week, and thought it would be a good teaching tool to have students read a really bad empirical paper. Ideally the lit review...

31 December 2012 5,354 7 View

Impact on the field?

Over the last decade, Wagenmakers has offered not only compelling critiques of standard approaches to data analysis in psychology, but potentially game-changing alternatives to analysis as well...

11 December 2012 1,127 1 View

"Deliberate practice" in academic & scientific writing-- how to get regular feedback?

I've become intrigued with the concept of "deliberate practice" as defined by Ericsson, Krampe, and Tesch-Romer (1993). There is also a popular book written on this topic, called "Talent is...

07 August 2012 6,389 0 View

Strategies for reducing a large number of items?

I am in the process of developing a new scale and have tested 128 items on 130 participants. Each item measures both the frequency (0 = never; 4 = very often) and the impact (0 = not at all...

06 July 2012 8,524 44 View

Online exercises for reducing implicit racial bias?

Hello, I just came across an interesting article by Kerry Kawakami and colleagues ("Just say no (to stereotyping): Effects of training in the negation of stereotypic associations on stereotype...

09 October 2011 7,172 1 View

Hi all, I work with a graduate student journal and would like input on a training module to help new authors process the first round of peer-reviews.

My impression is that authors catastrophize and focus on negative comments, all of which blur together and seem to be sending a message of "YOU SUCK!" I thought it would be helpful to have authors...

07 August 2011 6,696 5 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

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

VIF very high, but correlation is low and coefficient is significant. Which one whould I choose?

Hello. I have a question whether if my coefficients (statistically significant) would be valid when VIFs are really high. In my model, there are independent variables(IV), moderating variables...

26 February 2021 956 13 View

Data Analysis K-S and S-W tests?

Hello, I have conducted analysis where the K-W and S-W have come out as p

25 February 2021 9,648 3 View

Statistics: include groups of respondents made by one person for analysis?

Good morning, I could not find literature about this so I am asking. I am organizing data for a questionnaire (N=100) that foresees some personal questions like level of education. For the aim...

25 February 2021 2,090 4 View

Which is the best software or programming language (user friendly) for analysing data?

I have a basic knowledge on Python, R and MATLAB in analysing data. Among those, which is the best and user friendly? Which one should I learn deeply to analyse data?N:B: I want to learn data...

20 February 2021 3,950 15 View

Is the box plot of climatic indices better illustrate from daily data or annual data?

Hello, I hope you have a good time. I work on a research project about temperature indices. Due to the high number of indices, I only work on tables and maps on an annual time scale. In other...

19 February 2021 9,742 2 View

ANCOVA controlling baseline in RCT - how to perform power analysis and sample size estimation?

Hi, I have a simple question. I am hoping to perform a power analysis/sample size estimation for an RCT. We will be controlling for baseline symptoms, and using post-treatment or change scores as...

19 February 2021 2,648 23 View

How to find if Qualitative and Quantitative (discrete) variables have a relation?

I'm going to do a brief research about the dependance between the number of cases of Covid-19 and sex( male/female) . One of the requierements is to use inferential statistics to test the...

18 February 2021 7,092 11 View

Algorithms to filter corrective max and min from a set of data?

I've got this 5 year Direct Normal Irradiance data I downloaded from https://re.jrc.ec.europa.eu/. I ordered this by year and by every 24 hours because I need the DNI curve by max in summer, min...

17 February 2021 2,777 5 View