1 .		In a study of the relationship between self-concept and resilience for males and for females, the minimal acceptable sample size for the whole study would be [Hint]   10   30   60   90
2 .		Smaller sample sizes can be used in correlation research when [Hint]   The researcher expects no relationship between the variables.   There are only two variables to correlate.   The instruments used to measure the variables have low validity and reliability.   The instruments used to measure the variables have high validity and reliability.