71.
A psychological test can be considered as standard when one establishes its

73.
As experts in experimental design, statisticians may be asked to help . . . . . . . . arrange procedures for gathering and analysing data

77.
In an industry to have a better insight into the problems of the labourers the psychologists sometimes gets enrolled as one of the employees and participates in their activities like any other employees this is an example of

79.
Which of the following statements is not correct about validity?

80.
Consider the following statements about limitations of Psychological tests
1. Psychological tests permanently categorize the persons
2. Psychological tests measure only limited and beneficial aspects of behaviour
3. Psychological tests represent an invasion of privacy
4. Psychological tests create anxiety Select the correct answer from the options given below: