Eight techniques are used-sometimes all of them in the same study-to collect information (Neustadt and Fineberg, 1978; Yin, 1989).
The techniques all take a different approach to data collection.
mnli hypothesis: The techniques all take a different approach to data collection. premise: Eight techniques are used-sometimes all of them in the same study-to collect information (Neustadt and Fineberg, 1978; Yin, 1989).