Criminal Justice and Criminology (Statistics) Quiz # 9

Is variable a characteristic that describes people, objects, or places and takes on multiple values in a sample or population?

False

True

_____ is analysis involving two variables. Usually, one is designated the independent variable and the other the dependent variable.

The point in which the line crosses the Y-axis

The point in which the line crosses the X-axis

Bivariate

All of these

_____ is defined as the place in a table where a row and a column meet.

All of these

A chart that contains the area of the curve that is between the mean and a given z score

T scores

Cell

_____ is known as the categories or groups on a categorical variable.

None of these

Means

Classes

Means and proportions

Is contingency table a table showing the overlap between two variables?

True

False

_____ is a frequency, proportion, or percentage obtained by adding a given number to all numbers below it.

The manner in which research is written

All of these

The process used to obtain scientific results

Cumulative

_____ is defined as a raw count of the number of times a particular characteristic appears in a data set.

T curve

Normal curve

All of these

Frequency

_____ is known as variables measured repeatedly over time.

Longitudinal variables

Compute the obtained value of the statistic

All of these

Choose a statistical statistic

Is percentage a standardized form of a frequency that ranges from 0.00 to 100.00?

True

False

_____ is a standardized form of a frequency that ranges from 0.00 to 1.00.

Proportion

None of these

Matched pair

Pooled variance

_____ is defined as patterns that indicate whether something is increasing, decreasing, or staying the same over time.

Trends

3

None of these

2

_____ is known as involving one variable

Univariate

None of these

Multivariate regression

ANOVA

Is deviation score the distance between the mean of a data set and any given raw score in that set?

True

False

_____ is the arithmetic average of a set of data.

None of these

A number

An interval

Mean

_____ is defined as descriptive statistics that offer information about where the scores in a particular data set tend to cluster. Examples include the mode, median, and mean.

Each group’s mean to each other group’s mean

All of these

Measures of central tendency

Grand means

_____ is known as the score that cuts a distribution exactly in half such that 50% of the scores are above that value and 50% are below it.

None of these

Median

The slope coefficient

The standardized beta

Is midpoint of the magnitudes the property of the mean that causes all deviation scores based on the mean to sum to zero?

True

False

_____ is the most frequently occurring category or value in a set of scores.

The t is several different curves, unlike a fixed z curve.

They are the same, they just have different letters.

None of these

Mode

_____ is defined as a clustering of scores in the righthand side of a distribution with some relatively small scores that pull the tail toward the negative side of the number line.

Nominal variable

To figure out which type of statistic to use

Negative skew

None of these

_____ is known as a set of scores that clusters in the center and tapers off to the left (negative) and right (positive) sides of the number line.

They explicitly help us organize data.

These measures are not important in statistics.

Normal distribution

None of these

Is positive skew a clustering of scores in the left-hand side of a distribution with some relatively large scores that pull the tail toward the positive side of the number line?

True

False

_____ is the rule stating that all proportions range from 0.00 to 1.00.

Where two lines bisect each other

None of these

Bounding rule

The point in which the line crosses the Y-axis

_____ is defined as the amount of spread or variability among the scores in a distribution.

Dispersion

All of these

Coefficient of determination

Sign

_____ is known as a measure of how much a distribution curve’s width departs from normality.

None of these

Kurtosis

The DV

The quality of predictions

Is leptokurtosis a measure of how peaked or clustered a distribution is?

False

True

_____ is A measure of how flat or spread out a distribution is.

None of these

Platykurtosis

They employ the mode.

The employ the t distribution.

_____ is defined as A measure of dispersion for continuous variables that is calculated by subtracting the smallest score from the largest. Symbolized as R.

None of these

Range

The intercept

The standardized beta

_____ is known as based on the bounding rule, the rule stating that the proportion of cases that are not in a certain category can be found by subtracting the proportion that are in that category from 1.00.

Rule of the complement

Dichotomized

Continuous

None of these

Is standard deviation computed as the square root of the variance, a measure of dispersion that is the mean of the deviation scores. Notated as s or sd?

True

False

_____ is a measure of dispersion calculated as the mean of the squared deviation scores. Notated as s2.

Variance

None of these

The mean

The z distribution