alleryIn randomised experiments, confounding is commonly removed through what?
AUsing only one subject
BMaking lessons longer
CRepeating the same error
DRandom assignment
Answer & Solution
Correct answer: D. Random assignment
1. Confounding factors spoil accuracy or interpretation of results.
2. Scientific controls and random assignment commonly remove them.
3. Longer lessons or a single subject do not remove confounding.
_Source: Wikipedia, Experiment, Overview_
Keep practising Observation, Experiment, Discovery (Method of Science)
Browse all Observation, Experiment, Discovery (Method of Science) questions for CTET, or explore more Science Pedagogy topics.
Related questions
Students with math disabilities need which style of instruction, per Fuchs et al.?How should a teacher respond to students' own ideas in discovery tasks?Which classroom culture helps discovery learning succeed?How does discovery learning help student motivation?Which learning theorists support discovery learning along with Bruner?In pure discovery learning, how much help does the learner receive?Free exploration of a complex setting can overload which part of beginners' memory?For which tasks is direct instruction efficient compared with discovery?