is simply a characteristic or feature of the thing we are interested in understanding.

Two basic divisions of statistics are

Check that apply Descriptive statistics

do not imply any ordering among the responses.

It is an interval scale with the additional property that its zero position indicates the absence of the quantity being measured. 

allow comparisons of the degree to which two subjects possess the dependent variable

numerical scales in which intervals have the same interpretation throughout. 

Which of the following is qualitative variables?

In a study of the effect of handedness on athletic ability, participants were divided into three groups: right-handed, left-handed, and ambidextrous. Athletic ability was measured on a 12-point scale. The independent variable is _________; the number of levels of the independent variable is _______.

 quickly gather data and get a general idea of how things work before fully investing a lot of time and money into well-designed research projects with proper sampling

This research design involves observing things as they occur naturally and recording our observations as data. 

This research design is defined by the use of random assignment to treatment conditions and manipulation of the independent variable.

This research involves manipulating the independent variable but not randomly assigning people to groups.

Identify the scale of measurement for the following: military title -- Lieutenant, Captain, Major.

Identify the scale of measurement for the following categorization of clothing: hat, shirt, shoes, pants

Identify the scale of measurement for the following: heat measured in degrees centigrade.

A score on a 5-point quiz measuring knowledge of algebra is an example of a(n)

City of birth is an example of a(n)

A frequency distribution contains the frequency of every value in the distribution.

A symmetric distribution

The following distribution has

Which of the following is the Median?

The letter C is?

The H-Spread is?

for what formula is this?

what formula is this?

what formula is this?

what formula is this?

the process of collecting data in a systematic manner, examining those data, and making inferences from them

any measurable characteristic of a person, environment, or experimental treatment that varies from person to person, environment to environment, or experimental situation to experimental situation

a number that represents a construct that does not change

an outcome of interest (e.g., some aspect of behavior) that is observed and measured by a researcher to assess the effects of the independent variable.

- the variable that an experimenter uses to describe or explain the differences in the dependent variable or to cause changes in the dependent variable.

- the variable that an experimenter uses to describe or explain the differences in the dependent variable or to cause changes in the dependent variable.

the type that the experimenter systematically controls or manipulates and to which the subjects are assigned.

numbers or measurements that are collected as a result of observations.

- a collection of measurements or observations

a complete set of individuals, objects, or measurements having some common observable characteristic.

a subset of a population that shares the same characteristics as the population.

a number resulting from the manipulation of sample data according to certain specified procedures;

- a value summarizing a measurable characteristic of a total population that is estimated based on the value of a statistic

a subset of a population selected in such a way that each member of the population has an equal an independent opportunity to be selected.

assigning subjects to different treatment conditions in such a way that each subject has an equal and independent opportunity to be placed in each treatment condition

is the naturally occurring discrepancy, or error, that exists between a sample statistic and the corresponding population parameter.

selection of the samples based on the convenience of the researcher.

the selection of the sample is based on the selective judgment of the researcher

The researcher identifies population sections or strata and decides how many participants are required from each section.

a technique wherein initial sample members are asked to refer other people who meet the criteria required by the researcher.

most basic probability sampling technique.

- a process of selecting the kth element in the population until the desired number of samples is attained.

standard distance between element chosen for the sample.

the population is divided into subgroups or strata. After the stratification, an appropriate number of elements are selected from each stratum randomly.

– is a method of selecting cluster from a population that is large and widely dispersed over a wide geographical area.

- a set of statistical procedures used to organize, summarize, and present the data collected in a research project.

- a collection of statistical procedures that allow one to make generalizations about population parameters based on sample statistics,

consists of separate, divisible categories. No values can exist between two neighboring categories.

- there are an infinite number of possible values that fall between any two observed values.

Boundaries of intervals for scores that are represented on a continuous number line.

consists of a set of categories that have different names

consists of a set of categories that are organized in an ordered sequence.

-consists of ordered categories that are all data of exactly the same size.

- is an interval scale with the additional feature of an absolute zero points.

is a statistical measure to determine a single score that defines the center of a distribution.

- also known as the arithmetic average is computed by adding all the scores in the distribution and dividing by the number of scores.

is the midpoint of the list if the scores in a distribution are listed in order from smallest to largest.

- is the score or category that has the greatest frequency in a distribution.