晴の天空

1.  Make Proper Schedule:  Prepare a list of most important topics which has a possibly to be listed in exam. Then, make a table of these topics according to the requirement of time and preparation, by giving preference to topics worth less time. And divide remaining days in the number of subjects, priority should be most important subject. Undoubtedly, this table helps in examining the progress. It helps in avoiding tension, as it provide proper information about the preparation . 2.  Allot sufficient time to Sleep : According to experts, 8 hour of sleep is sufficient as well as essential for having a calm and healthy mind. But for students in can be reduced to 6-7 hours and try to do late night study till 15 days before exam. Afterwards, follow the normal routine for revision. 3.  Do Mental Exercise : Mental exercises such as yoga of meditation is very useful in increasing concentration power, hence very useful if started before one month of exam. Th...

Here are the terms which appear to confuse many students: validity, reliability, accuracy, sensitivity and precision/exactness. Although we may colloquially use these terms interchangeably, in the scientific context, all these terms have big differences in usage. Let me clarify them for you: A] Validity Validity refers to whether a study us able to scientifically answer the questions it is intended to answer. The experimenter succeeds in getting the intended (expected, scientifically predicted) result/ manages to answer the scientific problem correctly if the study is valid. A valid investigation is one that is properly designed to answer the question that is being asked. In a valid experiment: All fixed variables kept constant. Manipulated variable is correctly controlled with proper techniques. Responding variable is measured with correct method. Minimizes random error (by replication or proper control of all variables) Minimizes systematic error (by proper instr...