Of type I and II error, one which traditionally regarded as more serious is ........
1). Type I
2). Type II
3). They are equally serious
4). Neither is serious
2. The important purpose of survey method is-
3. Which of the following is the least helpful to locating and analyzing problems?
4. Which one of the following in not a major method of data collection
5. McGrath and Watson have defined research as-
6. The second variable is called ........
10. Historically the name of the person associated with the emergence of written examination is