The phrase "stage of data collection" is a perfectly correct and usable phrase in written English.
You can use it any time you need to refer to the process of gathering data, or the point in the process that the data gathering is currently in. For example: "We have now reached the stage of data collection; the next step is to analyze the results."
These were done during the second stage of data collection.
The stage of data collection and observation involved the participation of eight volunteers.
At each stage of data collection, language learners were required to write a summary in response to the graphic prompt designed for data collection.
Then, the results were analysed using Rash analysis software in order to identify approximately ten suitable items from the 2013 test to be added on to the 2009 test during the second stage of data collection.
In order to gather suitable person anchors, a number of subjects who had completed the 2013 test were recruited to complete the 2009 test during the second stage of data collection.
Thus, a successful search for new elementary particles critically depends on successfully crafting selection criteria and techniques at the stage of data collection and at the stage of data analysis.
The State Trait Anxiety Inventory scores of this sample were high at all stages of data collection.
The design of the questionnaire affects all subsequent stages of data collection and analysis.
Qualitative and quantitative surveys were used in multiple stages of data collection.
Through three stages of data collection (screening questionnaire, artifact elicitation interview, and critical incident interview), new dimensions of their individual pathways were uncovered (see Fig. 4).
The study utilised a convenience sample of final year Bachelor of Nursing students at a rural university campus, and consisted of two stages of data collection.
