Nigeria's free digital learning hub. Videos, lecture notes, practice questions and leaderboards aligned with CCMAS, NBTE, NCCE, WAEC, NECO, IJMB and JAMB curricula.
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Nigeria's free digital learning hub. Videos, lecture notes, practice questions and leaderboards aligned with CCMAS, NBTE, NCCE, WAEC, NECO, IJMB and JAMB curricula.
Data types and characteristics describe the forms and qualities of information used in research, shaping how data is collected, organized, and interpreted. Broadly, data can be classified into qualitative (non-numerical, descriptive information such as opinions, categories, or observations) and quantitative (numerical values that can be measured and analyzed statistically). Within these, data may take forms such as nominal (labels or names), ordinal (ranked categories), interval (numerical values without a true zero), and ratio (numerical values with a meaningful zero). Key characteristics include accuracy, reliability, validity, consistency, and scale, which determine the usefulness of data in analysis. Understanding these types and properties ensures that researchers apply the right methods for interpretation, leading to valid conclusions and meaningful insights across disciplines.
This lecture is part of GEO 206 STATISTICS FOR GEOGRAPHERS in the Geology department. The course has 30 recorded lectures across 10 series, all free to watch. Read or download the GEO 206 lecture note to study alongside the video.
