Method of choosing samples
Quantitative study samples 
Criteria for quantitative sample size
Qualitative study sample 
Criteria for qualitative sample size

Notes
Accroding to Burns and Groove (2009), study sample can be chosen based on random probability or non-probability. In the study by Windle et al (2006), study sample were chosen using random probability which is known as random simple sampling (Burns & Groove, 2009). The subjects were selected through a lottery considering the fact that they had met certain criteria like being 18years and older. Base on the method of selection, the study is considered a quantitative study. Thus because of the sampling method, the sample size must contain at least 30 subjects to qualify it as a quantitative study. (Burns & Groove, 2009),
In qualitative study, subjects are chosen using non-probability sampling. In the study by Eggenberger, Keller and Locsin (2010), study samples were chosen using purposive sampling. The subjects were further screened using questionnaire. According to Burn and Groove (2009), this method is of sampling is for qualitative study. In a qualitative research, the size of the sample depends on the quality of information obtain. The size therefore determines the depth of the information needed to gain and insight into the study. 

Data Collection
Was data collected?
Purpose of data
Methods use in collecting data

Notes:
In the research by Windle et al (2006), there was actually no clear explanation whether data was collected because they was no method used. Data in this type of study is used to identify relationship amongst variables or to determined differences between groups (Burns & Groove, 2009). The only data mentioned that was collected was for the samples which was the age of the subjects and their ability to read and write English. 
In the study by Eggenberger, Keller and Locsin (2010),, data was clearly collected. In a qualitative study, data is used to determine the quality of the study (Burns & Groove, 2009). In their study, data was collected using questions and answers, verbal script, briefing, encountering, debriefing, unstructured questions, and videotaping.