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Lineup procedure and the suspect’s position as determinants of eyewitness identification accuracy
This article is based on a dissertation submitted by Promise Gumbo in partial fulfillment of the requirements for the Bachelor of Science...

Promise Gumbo
Aug 2922 min read


The Complexity of Road Safety: Why Assumptions Cannot Stand as Conclusions
In an article surrounding road safety in Zimbabwe, attention is drawn to an alarming rise in traffic-related deaths, attributing this...

Promise Gumbo
Jul 23 min read


About our biostatistician services
Biostatistics is a branch of statistics that applies statistical methods to biological, health, and medical research. A biostatistician...

Promise Gumbo
Mar 22 min read


Statistical Analysis in Research Projects
Statistical analysis is a critical component of research studies, providing the tools necessary to interpret data and derive meaningful...

Promise Gumbo
Dec 30, 20244 min read


Understanding the distinction between a Census and Sample Surveys
In the realm of primary data collection and analysis, two fundamental methodologies stand out: census and sample surveys. Both approaches...

Promise Gumbo
Dec 29, 20244 min read


Product and concept testing studies
Among other market research studies, we have vast expertise and experience in product and concept testing studies. This involves...

Promise Gumbo
Aug 10, 20243 min read


Theoretical relevance is more important than statistical significance
Over the years, I have assisted many university students on their research projects, particularly in relation to data analysis were...

Promise Gumbo
Jul 29, 20242 min read


Workshops Discourse Analysis
Business or organisational workshops are a valuable platform for information gathering and sharing. Whether a workshop audience comprises...

Promise Gumbo
May 12, 20231 min read


Effect of mandatory open-ended questions on survey completion rate.
The collection of data through surveys is a critical component of most market and social research projects. This is because even where...

Promise Gumbo
Apr 7, 20232 min read


Dissertation data analysis
While market research consulting is my primary business, I also assist individuals who are working on their academic theses and...

Promise Gumbo
Jan 13, 20221 min read


Sampling methods are either probabilistic or non-probabilistic - not quantitative or qualitative.
Reference to “qualitative” versus “quantitative” sampling methods abounds in everyday parlance as well as in some anecdotal articles on...

Promise Gumbo
Oct 26, 20202 min read


The importance of post COVID-19 usage and attitudes research
In market research, Usage and Attitudes (U&A) studies are a common tool that provides brands with a holistic understanding of the market...

Promise Gumbo
Aug 24, 20202 min read


We are qualntitatively astute!
So, what do we mean by that? In research qualitative and quantitative methods are sometimes used together in the same study in what is...

Promise Gumbo
Jun 16, 20201 min read


We analyse data. And learn.
While market research consultancy is my main business, I also assist individuals working on academic theses and dissertations with data...

Promise Gumbo
May 7, 20202 min read


Not every customer is King
The other day I was reading a social media post on employee bullying at the workplace, especially by managers. What particularly drew my...

Promise Gumbo
Aug 22, 20192 min read


Race differences in usage of body care products
Although a variety of socioeconomic factors influence the purchase and use of personal care products, research has also shown racial...

Promise Gumbo
Jun 21, 20191 min read


Challenges with ranking responses from focus group discussions
In qualitative research, responses and viewpoints are identified and reported regardless of how often they were mentioned and...

Promise Gumbo
May 18, 20192 min read


The relationship between parent temporary migration and childhood survival in households left behind
The study examined the influence of parent’s migration status on childhood mortality in sending households in the South African rural...

Promise Gumbo
Mar 28, 20191 min read


Not every business problem is a research problem
Arguably, every business will always be faced with a problem of one form or another. This could be a “bad” business problem, such as...

Promise Gumbo
Jan 27, 20191 min read


Impact of data collection method on NPS
Research has consistently shown that the method of data collection affects the responses given by the study participants. Among other...

Promise Gumbo
Jan 27, 20191 min read









