. How can scientists ensure that the variables they investigate can be observed and measured?
A. Scientists state the dictionary definition of an investigated variable.
B. Scientists use their trained intuition before investigating a variable.
C. Scientists state an operational definition of an investigated variable.
D. Scientists do nothing; it is not necessary to observe and measure variables.
Ans: C
You might also like to view...
The first stage of Kohlberg’s theory of moral development is?
a. ?preoperational. b. ?preconventional. c. ?conventional. d. ?image-making.
If asked to fill out a personal data sheet or background form, add a section telling all about yourself
Indicate whether the statement is true or false
The contemporary emphasis of parent-professional relationships implies that
a. families are full and equal partners with professionals b. the professionals have more knowledge than parents c. the parents control the decision-making process d. the quality of humankind is better with selective breeding
In order to practice hard listening, you need to _____.
A. listen intently, practice sympathy, don’t judge B. be accepting, sympathetic, and non-judgmental C. think critically, be there for someone else, analyze D. listen intently, think critically and analyze carefully