Give the correct answer for the following questions    1

Give the correct answer for the following questions 

1. You are required to define the following terms: 

a) Variable, 

b) Validity,

 c) Reliability, 

d) Non-Parametric Test, 

e) Parametric test 

2. Data analysis essentially consists of applying statistical techniques to a data base in order to make inferences about variables or study objects. 

a) Describe data preparation, data coding and data entry in brief 

b) Discuss the two major types statistical techniques (descriptive and inferential) to analyze quantitative data and support your answer by examples. (10