Question

All of the following statements about the median are true, except:

it may not have been a score actually in the distribution

it is not sensitive to outliers

it is appropriate for all measurement scales

approximately 50% of the scores will be above the median and 50% below

it divides a distribution in half n a positively skewed distribution, the mean is ____________ the median. typically equal to always less than equal to half of always equal to typically greater than typically less than In APA journal articles the Results sections usually report the _______ and the _______ of the data. mean; outliers median; range IQR; variance mean; SD mean; SS mean; median A clinical psychologist studying the effects of different therapies categorizes patients according to whether or not they are in therapy. In this case, therapy is a __________ variable. control quantitative measurement dependent qualitative continuous If you were interested in studying the effects of varying preparatory instructions on the perception of pain during an injection, the instructions would be a(n) _____________ variable and the amount of perceived pain would be a(n) _____________ variable. independent; consistent control; dependent independent; dependent qualitative; independent _____________ measures have the property that numerically equal distances on the scale represent equal distances on the dimension being measured. Nominal Repeated Ordinal Interval Qualitative A(n) _____________ variable can theoretically include an infinite number of values between any two points. unbounded discrete nominal dichotomous continuous

Taking measurements on a sample and then, from observations, inferring something about a population is known as _____________.

inferential statistics

parametric statistics

random sampling

population estimation Which of the following is a discrete variable? age intelligence time number of children money

Answer 1

1) All of the following statements about the median are true, except it is appropriate for all measurement scales.

2) n a positively skewed distribution, the mean is typically greater than the median.

3) In APA journal articles the Results sections usually report the mean and the SD of the data.

4) A clinical psychologist studying the effects of different therapies categorizes patients according to whether or not they are in therapy. In this case, therapy is a qualitative variable.

5) If you were interested in studying the effects of varying preparatory instructions on the perception of pain during an injection, the instructions would be an independent variable and the amount of perceived pain would be a dependent variable.

6) Interval measures have the property that numerically equal distances on the scale represent equal distances on the dimension being measured.

7) A continuous variable can theoretically include an infinite number of values between any two points.

8) Taking measurements on a sample and then, from observations, inferring something about a population is known as inferential statistics.

9) Which of the following is a discrete variable?

Number of children.