Home > Educational Research And Methods > Descriptive Statistics in Educational Research MCQ

# Educational Research And Methods MCQ

### A raw score that has been transformed into _____ units is called z score .

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### The point where the regression line crosses the _____ is called y-intercept

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### A measure of the average deviation from the mean in squared units is called

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### Scores that have been converted from one scale to another to have a particular mean and standard deviation is called

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### The square root of the variance is known as

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### Not symmetrical is called skew

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### Regression based on one dependent variable and one independent variable is called simple regression

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### A graph used to depict the relationship between two _____ is called scatter plot

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### The line that best fits a pattern of observations is called

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### The equation that defines the regression line is called

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### The predicted change in Y given a 1-unit change in X is called

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### A set of statistical procedures that are used to explain or predict the values of a dependent variable on the basis of the values of one or more _____ is called regression analysis

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### The norm group that is used to determine the percentile ranks is called reference group

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### The percentage of people in a group who have a specific characteristic is called

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### The difference between the highest and lowest numbers is called

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### Skewed to the _____ is called positively skewed

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### Scores that divide a distribution into _____ equal parts is percentile ranks

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### The percentage of scores in a reference group that fall below a particular raw score is called percentile ranks

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### A regression coefficient obtained in multiple regression is partial regression coefficients

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### A number that is very atypical of the other numbers in a distribution is called

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### A unimodal, symmetrical, bell-shaped distribution that is the theoretical model of many variables is normal distribution

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### Skewed to the left is negatively skewed

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### Which exclusive refers to response categories that do not overlap?

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### In which regression based on one dependent variable and two or more independent variables?

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### The most frequently occurring number is called

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### The 50th percentile is called

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### Provide information about where a score falls in relation to the other scores in the distribution of data is measure of relative standing

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### A numerical index that provides information about how spread out the data values are or how much variation is present is measure of variability

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### The single numerical value considered most typical of the values of a quantitative variable is measure of central tendency

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### The arithmetic average is known as

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### A graph that relies on the drawing of one or more lines is called

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### Statistics that go beyond the immediate data and infer the characteristics of populations based on samples is _____ statistics

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### A set of numbers with little variability is _____

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### A graphic that shows the frequencies and shape that characterize a quantitative variable is called

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### A set of numbers with a great deal of variability is called

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### The data values are clustered or grouped into separate intervals, and the frequencies of each interval are given is grouped frequency distribution

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### An arrangement in which the frequencies of each unique data value are shown is frequency distribution

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### Exhaustive refers to the property that the set of intervals covers the complete range of data values is called

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### Statistics that focus on describing, summarizing, and explaining a particular set of data is called

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### A set of data is known as

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### In which table displaying information in cells formed by the intersection of two or more categorical variables?

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### A graph that uses vertical bars to represent the data is called

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### A percentile rank reflects the percentage of scores in a reference group that fell below a certain raw score.

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### Raw scores that have been transformed into standard deviation units are called z scores.

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### A scatterplot is used to show the frequencies and shape that characterize a single quantitative variable.

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### The square root of the variance is the standard deviation.

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### Approximately 99% of scores fall within 2 standard deviations of the mean in a normal distribution.

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### Which of the following rules is correct when reading a contingency table?

Correct Answer: If the percentages are calculated down the columns, compare across the rows.

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### If a test was very easy for the vast majority of students, except for a few students who had very low scores, then the distribution of scores would be ______.

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### In a fully normal distribution of scores, which of the following is true?

Correct Answer: The mean, median, and mode are the same number.

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### What procedure is used to explain or predict the values of a dependent variable based on the values of two or more independent variables?

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### Which of the following is a measure of variability?

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### Which of the following is a measure of central tendency?

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### How is a set of data organized?

Correct Answer: Each participant gets a row, and each variable gets a column.

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### Hypothesis testing and estimation are both types of ______ statistics.

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