Question

Asked 21st May, 2017

Texas State University

Recruiting student-athletes for research for dissertation...need help.

Fellow researchers. I am a doctoral candidate and assistant professor trying to complete my dissertation to finalize my degree. I'm in the process of developing a new instrument and need help recruiting student-athletes for my study (I currently work at a very small private school with a limited number of students).

For my study participants (i.e., student-athletes aged 18+) need to complete an online survey, which takes about 10 minutes to complete. Please share the link to my study with any athletes you may know. I still need about 50 more participants to finish data collection. Participants who complete the study will be entered into a drawing for one of four $25 visa gift cards.

The link to the survey is http://tinyurl.com/PRKOATv2

Volunteerism

Recruitment

Counseling Psychology

Online Surveys

David L Morgan

Portland State University

Muayyad Ahmad

University of Jordan

Han Ping Fung

HP Inc.

Kenneth Lui-ming Ngie

The University of Newcastle, Australia

Ian Kennedy

University of the Witwatersrand

Mental Health Management In Sports

Discussion

1 reply

Asked 23rd Jun, 2022

Andreas Møller Nielsen

Hi everyone

Is it possible for you to help me?!

I am conducting research on athletes for my master's thesis in psychology. However, recruiting enough athletes is moving too slowly. Can you help me by filling out my online survey and, if possible, sharing it with your network?

https://lundpsychology.eu.qualtrics.com/jfe/form/SV_3rRhzd2Uw7WlJKS

Everyone aged 18 and older can participate - athletes and non-athletes, both females and males (mostly interested in athletes at this point).

All athletes, from the recreational to the Olympic level, are eligible, and it only takes about 10-15 min to complete the survey - it is completely anonymous!

How to compare Spearman's correlations between dependent samples?

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7 answers

Asked 13th Jun, 2021

Jess S. Aitken

I'm stuck trying to figure out how to compare Spearman's correlations for dependent samples.

I have an n of 57, and I want to compare two dependent Spearman's correlations with one variable in common. I use SPSS.

I can find a lot of info on how to compare Spearman's correlations in independent samples (eg SPSS support page https://www.ibm.com/support/pages/differences-between-correlations) but nothing on how to do this between dependent correlations.

I've found this web utility (http://quantpsy.org/corrtest/corrtest2.htm) for calculation for the test of the difference between two dependent correlations with one variable in common, which uses Fisher's z-scores. First, each correlation coefficient is converted into a z-score using Fisher's r-to-z transformation. Then, they use Steiger's (1980) Equations 3 and 10 to compute the asymptotic covariance of the estimates. These quantities are used in an asymptotic z-test.

It doesn't specify whether it's appropriate to use for Spearman's or Pearson's correlations, and as it seems using Fisher's z-scores is appropriate for comparing independent Spearman's correlations, and the tool doesn't specifically say it's for Pearson's correlations, I'm wondering if this method is appropriate for what I'm trying to do.

Any help or advice would be much appreciated!

Is it possible to compare two unequal sample sizes with categorical data on SPSS?

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5 answers

Asked 29th Jan, 2021

Marouan Sghair

I have a small dataset collected from SMEs and I need to compare the demographic characteristics between SMEs with access to external finance and SMEs who do not have access to finance on SPSS. The two groups are unequal in the sample size.

Is there a test on SPSS that compares categorical data between two groups despite the difference in sample size?

Regards,

Marouan

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10 answers

Asked 27th Apr, 2020

Kunal Kanoi

I need to compare two samples, one sample has 500 data points and other sample has 100 data points? Which would be the best way to compare them? I learned online that T-test will not be the best method to do this. Any suggestion?

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Asked 6th Jun, 2019

Michael Sadeghi

Dear sirs/madams,

Hi.

I have a question the answer to which I couldn't find. I was wondering if you could help me.

I used random matching (matched paires) based on one variable to assign 132 participants into two groups i.e. 66 participants each. However, after deleting outliers and checking the assumptions, imbalanced groups resulted in a way that one group has 58 participants and the other has 53.

Running an independent sample t-test showed no significant difference between the means of the two groups, yet i was doubtful about the numbers of the participants in each group. Should the numbers be exactly the same by deleting the counterparts of the participants that were deleted?

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Asked 27th Dec, 2018

Hamid Khosravany Fard

I am to present part of my data for five variables of nominal type in a concise bar chart.

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Asked 2nd Aug, 2017

Nesreen Al-Ahmadi

Hi,

Right now I am facing a problem in terms of what type statistical tests to run in my research.

I have a sample of 15 participants, grouped into 3 groups in terms of their proficiency level. There were given a pretest before reading a text and a post-text after it. They had 4 different texts and different target words.

in terms of scoring, a two point scale was used for the post-test, while a three point scale on the second.

One of my objectives is to see if there is any significant differences in scores between groups and across groups in terms of proficiency level or text type

Most studies I have come across have had a sample of more than 25 and run T-tests. Reading on SPSS, 30 and over is the desirable sample, since it would be hard to see if the sample was normally distributed with sample sample sizes.

I would appreciate any feedback, comments or suggestions

Thank you

Is there any way to compare two datasets with drastically different sample sizes?

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13 answers

Asked 20th Feb, 2017

Chinmay Rahane

I have two datasets containing Z-score data. However both of them are of highly different sizes, i.e one has 500 samples while the other has 4. I want to determine if the differences between the samples is statistically significant. I thought of using an unpaired t-test, but I am not sure if the difference in sample sizes would invalidate the method.

Can we do parametric-tests directly to standardized data with Z-scores in Spss?

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6 answers

Asked 27th Apr, 2016

Abdelmadjid Bekai

My PhD thesis contain a cross-culture research between two nationalities witch requires me to standardized my data to avoid the issue of responses type a cross-cultures for that i did the Z-score to standardized my data in Spss. So my question is: is it right to run T-test and Correlations directly to the standardized data or is it just for raw data?

Recruiting an Online Panel from another Online Survey: Consequences of Framing and Placement of the Recruitment Question

Article

Full-text available

Mar 2016

Despite the fact that many online surveys today rely on online access panels, previous studies have primarily examined what makes respondents answer online surveys, rather than focusing on the recruitment process to such panels. One common method is to recruit panel members through another online survey. Through an experimental 2 3 design, we exami...

Online Surveys: Five Stages of Effective Survey Design and Recruitment

Presentation