For this Application Assignment, consider the differences between measurement and observation. Then think about the differences between and among nominal, ordinal, interval, and ratio levels of measurement and why it is important to know the level(s) of measurement in a study. Finally, consider how you might improve the validity and reliability of variable conceptualization and measurement.
The assignment (2 pages):
• Explain differences between measurement and observation.
• Explain differences between the four levels of measurement: nominal, ordinal, interval, and ratio.
• Explain why it is important to know the level(s) of measurement for variables in a study.
• Describe two techniques that may be used to improve the validity and reliability of variable measurement
Please include some research design from Library Abstract.
Institution of affiliation
According to Webster English dictionary, measurement refers to assigning a number to a unit, characteristic, event or an object. Measurement is dependent on the discipline and context. For example, liquids use liters; length is measured in feet/ inches while distance is measured in miles. Observation, on the other hand, refers to the act of seeing and taking notice of something. The main difference between measurement and observation is that the later uses the five senses of touch, smell. Sight, sound and touch while measurement uses physical experimentation to come to a conclusion (H