Dr. Yanira is an education specialist and has begun observing various schools throughout the county. Dr. Yanira randomly selected a private school in the area with the highest per-capita income to be her first school observation. She decided to base her request for budget, school supplies, school lunches, among many other things on that single observation. What is the main issue with her results from that single observation?
A) low ecological validity
B) low external validity
C) lack of representativeness
D) observer bias

Question

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The Answer of Dr. Yanira is an education specialist and has begun observing various schools throughout the county. Dr. Yanira randomly selected a private school in the area with the highest per-capita income to be her first school observation. She decided to base her request for budget, school supplies, school lunches, among many other things on that single observation. What is the main issue with her results from that single observation?
A) low ecological validity
B) low external validity
C) lack of representativeness
D) observer bias

Dr Yanira Is an Education Specialist and Has Begun Observing