Box-whisker plot

What is the Box and whisker plot? Box and Whisker plot is the visual representation of continuous/quantitative parameters using median and quartile distribution of data. Box and whisker plot can be done both Horizontal and Vertical ways. The box which denotes median and quartiles extends lines which represent the upper and lower limit of the […]

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Type of probabilities in a contingency table

There are three types of probabilities for contingency table/crosstabs. They are: Marginal probabilities, Joint probabilities and Conditional probabilities. Suppose data is collected in a study of 165 students about their gender and insomnia status. After the collection of data, following 2×2 contingency table is generated: Table 1: Contingency table of Insomnia by Gender   Marginal […]

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Pie Charts

What is a pie chart? Pie Chart can be defined as a circular chart with multiple divisions in it, and each division represents some portion of a total circle or total value. Simply each circle represents the total value of 100 percent, and each division contributes some per cent to the total. It is named […]

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Simple Linear Regression

What is Simple Linear Regression?    The simple linear regression is a linear regression model which has a single explanatory variable. It has two-dimensional sample points with one independent variable (x) and one dependent variable (y) and finds a linear function that is accurate and  predicts the dependent variable values as a function of the independent […]

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Normality tests

Normal distribution of data When we say there is normal distribution of data, it has:         symmetry about the center         Mean=Median=Mode         50% of the values greater than the mean and 50% less than the mean. Normal distribution, also known as the Gaussian distribution, will […]

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ICMJE Up-dated recommendations

It’s very important for authors to keep pace with the updates of International Committee of Medical Journal Editors (ICMJE). The recommendations titled  “Recommendations for the Conduct, Reporting, Editing, and Publication of Scholarly Work in Medical Journals” are updated recently. The following sections are reported to be updated as per the ICMJE official website. Section  III.D.2.Duplicate and […]

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A snapshot of basic steps in research life cycle

Understanding the basic steps in research project execution is vital for any researcher, to plan and execute research efficiently. coGuide team had put in place all the critical steps in this quick snippet video. From generating the research question to publishing your research findings all the critical steps are covered in logical sequence.

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Descriptive statistics

The study of numerical and graphical ways to describe and display your data is called descriptive statistics. It describes the data and helps us understand the data by summarizing the given sample set or population of data. Ø  Central Tendency of Data   Mean The “Mean” is the average of the data. Average can be […]

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Correlation

What is correlation? The term “correlation” refers to a relationship or association between two variables. It is a measure which shows us how closely the variables are related. How can it be measured? Correlation between the variables can be measured using the “correlation coefficient” ; it usually varies between ±1. Usually if correlation coefficient value […]

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