Question 1

The written description of the data that describes each variable and indicates where and how it can be accessed is called the _______________.

Accepted Answer

The answer of The written description of the data that...

Question 2

Which correlation is used when one variable is a continuous interval variable and the other is dichotomous?

Accepted Answer

The point biserial correlation is the appropriate choice when one variable is continuous interval and the other is dichotomous. It measures the degree of association between a dichotomous variable and a continuous variable.

Question 3

What is the mode of this set of scores?
4,4,7,3,6,10,2,7,3,10,4,8,2,2,2

Accepted Answer

The mode is the number that appears most frequently in a set. In this set, the number 2 appears five times, which is more than any other number, making it the mode.

Question 4

The probability that the researcher will conclude there is a relationship when in fact there is one is referred to as statistical _______________.

Accepted Answer

The answer of The probability that the researcher will conclude...

Question 5

The automated method for checking data-entry accuracy in which data are entered once and then a second time,with the software automatically stopping each time a discrepancy is detected is referred to as the _______________ system.

Accepted Answer

The answer of The automated method for checking data-entry accuracy...

Question 6

Data _______________ includes developing and documenting a database that integrates all of your measures.

Accepted Answer

The answer of Data _______________ includes developing and documenting a...

Question 7

Creating graphs and computing measures of central tendency are part of _______________ statistics.

Accepted Answer

The answer of Creating graphs and computing measures of central...

Question 8

Which correlation is used when there are two ordinal variables?

Accepted Answer

Spearman rank order correlation is used when there are two ordinal variables, as it measures the strength and direction of the relationship between two variables based on their rank or order. This correlation coefficient is useful when the data is not normally distributed or when there are outliers.

Question 9

​Figure TB 11-2
 
-What type of graph is shown above?

Accepted Answer

A bivariate graph displays the relationship between two variables, often using a scatter plot or similar representation.

Question 10

The correspondence between two variables is referred to as a(n)_______________.

Accepted Answer

The answer of The correspondence between two variables is referred...

Question 11

The level of statistical significance is also called the _______________ level.

Accepted Answer

The answer of The level of statistical significance is also...

Question 12

What is the mean of this set of scores?
4,6,7,7,9,3,10,4,2,9

Accepted Answer

The mean is calculated by adding all the numbers together and then dividing by the number of numbers. (4+6+7+7+9+3+10+4+2+9) / 10 = 61 / 10 = 6.1.

Question 13

What is the median of this set of scores?
10,5,5,5,4,6,7,2,10,7,10,2,6,7,6

Accepted Answer

First, arrange the scores in ascending order: 2, 2, 4, 5, 5, 5, 6, 6, 6, 7, 7, 7, 10, 10, 10. The median is the middle number, which is 6 in this case.

Question 14

Tests to detect statistically significant differences are part of _______________ statistics.

Accepted Answer

The answer of Tests to detect statistically significant differences are...

Question 15

What is the range of this set of scores?
10,5,5,5,4,6,7,2,10,7,10,2,6,7,6

Accepted Answer

To find the range, we need to subtract the smallest value from the largest value in the set. The smallest value is 2 and the largest value is 10.

Range = 10 - 2 = 8.

Therefore, the range of this set of scores is 8. Option C)8 is the best choice.

Question 16

​Figure TB 11-1
 
-What type of graph is shown in the accompanying figure?

Accepted Answer

The graph shown in the figure is a bar chart, where the data is represented using rectangular bars. The height of each bar represents the value of the corresponding data category.

Question 17

A(n)_______________ is a summary of the frequency of individual values or ranges of values for a variable.

Accepted Answer

The answer of A(n)_______________ is a summary of the frequency...

Question 18

The problem known as _______________ occurs when multiple analyses are conducted and they are treated as independent.

Accepted Answer

The answer of The problem known as _______________ occurs when...

Question 19

If the scores on a test are normally distributed,what percentage will be within two standard deviations of the mean?

Accepted Answer

According to the empirical rule, 95% of the scores will fall within two standard deviations of the mean in a normal distribution.

Question 20

If the scores on a test are normally distributed,what percentage will be within one standard deviation of the mean?

Accepted Answer

According to the Empirical Rule, approximately 68% of the values will lie within one standard deviation of the mean in a normal distribution.

Quiz 11: Introduction to Data Analysis

The written description of the data that describes each variable and indicates where and how it can be accessed is called the _______________.

Which correlation is used when one variable is a continuous interval variable and the other is dichotomous?

What is the mode of this set of scores? 4,4,7,3,6,10,2,7,3,10,4,8,2,2,2

The probability that the researcher will conclude there is a relationship when in fact there is one is referred to as statistical _______________.

The automated method for checking data-entry accuracy in which data are entered once and then a second time,with the software automatically stopping each time a discrepancy is detected is referred to as the _______________ system.

Data _______________ includes developing and documenting a database that integrates all of your measures.

Creating graphs and computing measures of central tendency are part of _______________ statistics.

Which correlation is used when there are two ordinal variables?

​Figure TB 11-2 -What type of graph is shown above?

The correspondence between two variables is referred to as a(n)_______________.

The level of statistical significance is also called the _______________ level.

What is the mean of this set of scores? 4,6,7,7,9,3,10,4,2,9

What is the median of this set of scores? 10,5,5,5,4,6,7,2,10,7,10,2,6,7,6

Tests to detect statistically significant differences are part of _______________ statistics.

What is the range of this set of scores? 10,5,5,5,4,6,7,2,10,7,10,2,6,7,6

​Figure TB 11-1 -What type of graph is shown in the accompanying figure?

A(n)_______________ is a summary of the frequency of individual values or ranges of values for a variable.

The problem known as _______________ occurs when multiple analyses are conducted and they are treated as independent.

If the scores on a test are normally distributed,what percentage will be within two standard deviations of the mean?

If the scores on a test are normally distributed,what percentage will be within one standard deviation of the mean?

Figure TB 11-2 -What type of graph is shown above?

Figure TB 11-1 -What type of graph is shown in the accompanying figure?