Vitamin C is one of the most effective nutrients to help grow and strengthen hair, says Loving. To give your locks a vital dose of vitamin C, blend a partially-boiled sweet potato, a half-cup of gooseberries, three strawberries, and half a small red bell pepper until you get a creamy smooth mixture. Then apply it to your scalp and hair. Leave the mask on for 15 to 25 minutes, then rinse it off with warm water.
3. Methods of collecting qualitative data. Data collection approaches for qualitative research usually involves: 1  Direct interaction with individuals on a one to one basis. 2  Or direct interaction with individuals in a group setting.
There are two different types of research techniques: scientific and historical. The purpose of both techniques are to use a logical approach to obtain information about a specific subject. Research techniques can be applied to a broad range of issues or areas of research.