MRS300T - Chapter 13

Validity refers to consistency of a set of measurements of a measuring instrument.

• TRUE

• FALSE

Which descriptive statistics reflect the most probable or appropriate response to a question?

• Mode

• Median

• Arithmetic mean

• All of the above

The following numbers represent body weight in kilograms of eleven students interviewed: 90, 87, 53, 72, 81, 102, 87, 61, 62, 76, 87.

Calculate the arithmetic mean of these numbers.

• 78

• 81

• 87

• 858

The following numbers represent body weight in kilograms of eleven students interviewed: 90, 87, 53, 72, 81, 102, 87, 61, 62, 76, 87.

Calculate the median of these numbers.

• 78

• 81

• 87

• 858

The following numbers represent body weight in kilograms of eleven students interviewed: 90, 87, 53, 72, 81, 102, 87, 61, 62, 76, 87.

Calculate the mode of these numbers.

• 78

• 81

• 87

• 858

Reliability refers to degree to which a construct measures what it was designed to measure.

• TRUE

• FALSE