62.
Expectancy bias is

66.
Match the following:
List-I (Variables) List-II (Property)
A. Independent variable 1. Physical characteristics of apparatus
B. Dependent variable 2. Variable manipulated by experimenter
C. Task variable 3. Variable recorded by experimenter
D. Extraneous variable 4. Variable controlled by the experiment

67.
A methods that clearly specify the probability or likelihood of inclusion of each element or individual in the sample.

69.
The distinction between observation with intervention and observation without intervention is similar to the distinction between

70.
The matched groups design ensures that the groups in the experiment are equivalent