Which of the following strategies is most effective in avoiding selection bias when choosing a sample for analysis?
Selection bias occurs when certain individuals are more likely to be selected for a sample than others, leading to unrepresentative results. Random sampling with a well-defined sampling frame ensures that every individual in the population has an equal chance of being selected, thus minimizing bias. The sampling frame is a list of all individuals in the population, and using this frame with random sampling helps ensure the sample is unbiased and representative of the entire population. Option A is incorrect because selecting volunteers can introduce bias since volunteers are likely to have specific characteristics that differ from the general population. Option B is incorrect because relying on personal judgment introduces bias based on subjective decisions, which can distort the sample. Option D is incorrect because convenience sampling is highly prone to bias, as it selects individuals who are easiest to reach, which may not represent the entire population. Option E is incorrect because focusing only on individuals with particular interests introduces a bias related to the characteristics of the participants.
What is the percentage of world cotton consumption that India represents?
Which among the following is the most severe form of soil water erosion?
The plantlet that is produced through clonal propagation is termed as
National Centre for Organic and Natural farming is located at ____
Blue color seed tag indicates which class of seeds?
The earthly odour after the first shower following a warm dry period is caused by the action of
Chromosome number of diploid rice is
Kyoto Protocol is an international treaty related to
Proboscis in the mouthparts of the butterfly is formed from ____
International Rice Research Institute is located at