Educational Statistics, Research, and Use of Technology in Education
This domain covers basic statistics, action research, educational technology, and digital learning resources. Questions ask you to interpret data, choose the right average, understand research cycles, and use technology without losing pedagogical purpose.
Core concepts
- Central tendency: mean, median, mode; median resists outliers better than the mean.
- Dispersion: range and standard deviation; correlation describes relationship, not causation.
- Action research: identify a problem, collect baseline data, plan an intervention, act, observe, reflect, and revise.
- Technology: LMS, DIKSHA, audio-video resources, assistive technology, and blended learning.
- Digital safety: data privacy, consent, screen time, and equitable access.
Worked example
Scores are 4, 6, 6, 8, 16. Reasoning: mean = (4+6+6+8+16) / 5 = 40/5 = 8; median = 6; mode = 6. The score 16 is an outlier and pulls the mean upward, so the median better represents the typical score. If the question asks which measure is most affected by the outlier, the answer is the mean.
Traps
- Reporting correlation as proof of causation.
- Using the mean for highly skewed data without noting the outlier.
- Calling a general survey action research; action research is a local cycle by practitioners.
- Assuming digital tools automatically improve learning; pedagogy and access matter.
- Ignoring privacy and consent when using student data or online platforms.