Answer:
Validity
Explanation: validity shows an indication of how sound your research is. Specification speaking , it applies to both the design and the methods of your research. When considering data collection validity means that your findings truly represent the situation you are claiming to measure.
Answer:
i would create A Electrical device like a robot which would help people clean there house or doing all the work they want.
Explanation:
please follow me and mark me as BRAINLIEST
Experimental group confound group.