1 Italian dressing (or use a recipe for Olive Garden's House Dressing) 2  freshly grated parmesan cheese, to taste. 3  fresh ground black pepper, to taste.  In a large glass or wooden salad serving bowl, toss together the lettuce mix, onion slices, olives, pepperoncini, tomatoes, and croutons. Add dressing and toss to combine.
Distance measurement. Main article: Distance measurement. Measurement of distance is accomplished with a modulated infrared carrier signal, generated by a small solid-state emitter within the instrument's optical path, and reflected by a prism reflector or the object under survey.
As all other measurements, measurement in survey research is also vulnerable to measurement error, i.e. the departure from the true value of the measurement and the value provided using the measurement instrument.