an extremely atypical point located at a relatively long distance from the rest of the coordinate points in a scatterplot

(a)  

methods used to make inferences from observations of a sample to a population

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logical deductions about events that can’t be observed directly

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value of Y when X is 0; the point at which the regression line crosses the Y axis

(a)  

area on the normal curve between 2 and 3 standard deviations above the mean

(a)  

Q3 minus Q1

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the act of assigning numbers or symbols to characteristics of things according to rules

(a)  

a set of numbers (or other symbols) whose properties model empirical properties of the objects to which the numbers are assigned

(a)  

Normalizing a distribution involves “stretching” the skewed curve into the shape of a normal curve and creating a corresponding scale of standard scores, a scale that is technically referred to as a

(a)  

Who made the T score

(a)  

two types of scale

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standard deviation of the residuals

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the collective influence of all of the factors on a test score or measurement beyond those specifically measured by the test or measurement.

(a)  

the average amount of variability in your dataset.

(a)  

the property of “moreness”

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mathematical index that describes the direction and magnitude of a relationship

(a)  

term for how curved a graph is

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the difference between two points at any place on the scale has the same

meaning as the difference between two other points that differ by the same number of scale units

(a)  

obtained when “nothing” of the property being measured exists

(a)  

square root of the average squared deviations about the mean

(a)  

the dividing points between the four quarters in the distribution

(a)  

properties of scale

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average squared deviation around the mean

(a)  

levels of measurement

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the middle score in a distribution

(a)  

displays scores on a variable or a measure to reflect the frequency of each value

(a)  

the numerical width of any class in a particular distribution.

(a)  

the steepness of a distribution in its center

(a)  

indicates how many standard deviation units the raw score is below/above the mean

(a)  

amount of decrease observed when a regression equation is created for one population and then applied to another

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difference between the upper-class limit and the lower class limit

(a)  

diagram composed of lines, points, bars, or other symbols that describe and illustrate data

(a)  

few scores fall at the low end of the distribution

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when there are two scores that occur with the highest frequency

(a)  

data are not normally distributed yet comparisons with normal

distributions need to be made (type of transformation)

(a)  

most appropriate measure of central tendency for interval or ratio data in normal distribution

(a)  

the difference between the observed and predicted score (Y – Y′)

(a)  

continuous line connects points where test scores (X-axis) meet frequencies (Y-axis)

(a)  

3 types of kurtosis

(a)  

A picture of the relationship between two variables

(a)  

describes how much change is expected in Y each time X increases by one unit: ____ or _____

(a)  

arithmetic average score in a distribution

(a)  

the specific scores or points within a distribution.

(a)  

bell-shaped curve that is highest at its center; has 2 tails

(a)  

difference between the highest and the lowest scores;

(a)  

used to make predictions about scores on one variable from knowledge of scores on another variable, obtained from the regression line

(a)  

few scores fall at the high end of the distribution

(a)  

other term for scatterplot

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standard score retains direct numerical relationship to the original raw score

(a)  

answers the question, “What percent of the scores fall below a particular score (Xi)?”

(a)  

the best-fitting straight line through a set of points in a scatter diagram

(a)  

statistic that indicates the average score between the extreme scores in a distribution

(a)  

Other term for normal curve

(a)  

an indication of how scores in a distribution are scattered or dispersed

(a)  

the nature and extent to which symmetry is absent

(a)  

raw score converted from one scale to another scale with a set mean and standard deviation

(a)  

a regression line is found by using

(a)  

correlation coefficient describes the ___ and ___ of the relationship

(a)  

ratio used to determine the degree of variation in one variable that can be estimated from knowledge about variation in the other variable

(a)  

association between two sets of rank (also called rank-order correlation coefficient)

(a)  

variable that has only two levels

(a)  

square of correlation coefficient; how much variance is shared by the

X- and the Y-variables

(a)