Descriptive statistics should be reported in every study to: ...

[appyboo]

Descriptive statistics should be reported in every study to:
 
  a. determine validity.
  b. indicate reliability.
  c. provide a powerful analysis of data.
  d. show the sample characteristics.

Question 2

A researcher notes that 3 of 30 subjects had extreme anxiety scores when compared with the other subjects. These three subjects would be treated as:
 
  a. deviants.
  b. outliers.
  c. unexpected findings.
  d. ungrouped participants.

[shoemake]

Answer to Question 1

ANS: D
The researcher needs to obtain as complete a picture of the sample as possible.
Frequencies of descriptive variables related to the sample are usually obtained first.
Validity is not determined by descriptive statistics.
Descriptive statistics would not indicate reliability.
Descriptive statistics are not powerful analysis measures.

Answer to Question 2

ANS: B
Subjects with extreme values that seem unlike the rest of the sample are called outliers.
Deviants and outliers are not the same.
Unexpected findings can occur with or without outliers.
Subjects can be grouped into categories or not, the process may highlight outliers, but would not define them.

[appyboo]

TYSM

[nguyenhoanhat]

Wow, this really help