How would the researcher randomly select files? (What does the process look like?)
http://www.ehow.com/list_6903101_representative-sampling-techniques.html
To randomly select files, a researcher can follow a systematic process that ensures the files are chosen randomly and without bias. Here's a step-by-step guide on how to do it:
1. Determine the total number of files: Begin by identifying the total number of files available for selection. The researcher needs this information to establish the parameters for random selection.
2. Assign numbers to each file: Assign a unique numerical identifier to each file. For instance, if there are 100 files, label them as 1, 2, 3, and so on up to 100.
3. Use a random number generator: Obtain a random number generator tool, either online or through software. Random.org is a popular online tool that generates random numbers based on specified parameters.
4. Set the range of numbers: Input the range of numbers based on the total number of files. For example, if there are 100 files, set the range from 1 to 100.
5. Generate random numbers: Use the random number generator to generate the desired number of random numbers. For instance, if the researcher wants to select 10 files, they will generate 10 random numbers within the specified range.
6. Match random numbers to files: Match each generated random number with the corresponding file label. For example, if the generator produces the number 21, the researcher will select file number 21.
7. Repeat as needed: If the researcher needs to select multiple files, repeat steps 5 and 6 as necessary until the desired number of files has been randomly selected.
Important Considerations:
- It is crucial to ensure that the random number generator used is unbiased and truly random to avoid any unintended patterns or biases in the selection process.
- If the files are stored in a computer directory, another method would involve writing a program or using software to randomly select the files based on their respective file names or metadata.
By following these steps, a researcher can select files randomly, ensuring an unbiased sample for analysis or any other purpose.