suppose that a defined population is all left...
suppose that a defined population is all left - handers, and a survey is being conducted. which of these is an example of selection bias?\n\na. excluding right - handers from the selection process of the survey\n\nb. excluding left - handers over six feet tall from the selection process of the survey\n\nc. including right - handers in the selection process of the survey\n\nd. including left - handers over six feet tall in the selection process of the survey
Answer
# Answer:
B. Excluding left - handers over six feet tall from the selection process of the survey
# Brief Explanations:
Selection bias occurs when part of the target population is systematically excluded. The target population is all left - handers. Excluding left - handers over six feet tall creates a non - representative sample of left - handers, introducing bias. Option A is appropriate as right - handers are not the target population. Option C includes non - target individuals but is not selection bias in terms of the target population of left - handers. Option D is just including a subset of the target population and not bias.