Question

The response to Do you own a mobile phone? can be coded into

		3 categories
		4 categories
		2 categories
		1 category

data collection error refers to errors due to

		Poor implementation of the research instrument
		Unavoidable difference between sample and population
		Faulty management of data
		Non response

- open questions are difficult to code

T or F

Field editing should be done as soon as the data is collected

T or F

Answer 1

The response to do you own a mobile phone could be coded into 2 categories. It is a dichotomous question with two responses, either YES or NO.
Data collection error refers to errors due to poor implementation of the research instrument. All other options don't have any direct focus on data collection errors. Using an inappropriate instrument would lead to errors in data collection.
Open questions are indeed difficult to code. It needs the person responding to give more information than providing options that have been precoded.
The field editing should indeed be done as soon as the data is collected. It is the complete review of the data collected already.