~Hari~

 Hello and what's up guys I'm back with a new topic. Today's topic is "different kind of data collection".Stayed connected with us to get amazing information.   Any research is only as good as the data that drives it, so choosing the right technique of data collection can make all the difference. In this article, we will look at four different data collection techniques – observation, documentary,  interview and focus group discussion – and evaluate their suitability under different circumstances. Observation Seeing is believing, they say. Making direct observations of simplistic phenomena can be a very quick and effective way of collecting data with minimal intrusion. Establishing the right mechanism for making the observation is all you need. Document and record  Document and record,  as we consider them here, are stand-alone instruments of data collection that will be administered to the sample subjects either through mail, phone or online. They have long bee...

 Document and record (Wikipedia) : A black hole is a region of spacetime where gravity is so strong that nothing—no particles or even electromagnetic radiation such as light—can escape from it. The theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole. ​ Researchers observation : ​Our Milky Way Probably Has a Black Hole. ​The Closest Black Hole is Probably Not 1,600 Light-Years Away. ​You Can't Directly See a Black Hole.  Literature sources NOBODY has ever seen a black hole. Yet, despite this lack of direct evidence, most scientists believe that a massive star at the end of its life can implode to form an object so dense that nothing-not even light-can escape. ... In fact, they seemto fit all the observational evidence for the existence of black holes.