Question 1

______ are measured along a continuum at any place beyond the decimal point.

Accepted Answer

Continuous data is measured along a continuum, meaning that there are infinite possible values between any two points. This type of data is typically measured using a scale, such as time or weight, and values can be expressed as decimals or fractions. Discrete data, on the other hand, can only take on a finite number of values and is often counted rather than measured (e.g. the number of people in a room). Qualitative data refers to non-numeric information, such as opinions or characteristics, and open-ended data typically does not have a defined range or structure.

Question 2

Qualitative data vary by ______; quantitative data vary by ______.

Accepted Answer

Qualitative data vary by class or category, while quantitative data vary by amount or numerical value.

Question 3

Descriptive statistics and inferential statistics are used for precisely the same purposes.

Accepted Answer

Descriptive statistics and inferential statistics have different purposes. Descriptive statistics are used to summarize and describe data, while inferential statistics are used to make inferences and predictions about a larger population based on a sample of data.

Question 4

Researcher A measures academic preparedness as the percent correct responses on an entrance exam; Researcher B measures academic preparedness as the current class rank of students.Which researcher measured academic preparedness as discrete data?

Accepted Answer

Researcher B measured academic preparedness as discrete data because class rank is a ranking system that categorizes students into discrete categories based on their performance (such as top 10%, top 25%, etc.), rather than measuring their performance as a continuous variable. Researcher A measured academic preparedness as continuous data because the percent correct responses on an entrance exam is measured on a continuous scale from 0% to 100%.

Question 5

To understand chimpanzee behavior in general,a scientist observes the hierarchy or dominance behavior of a family of male chimpanzees in a naturalistic setting.In this example,the scientist observes the behavior of a population of chimpanzees.

Accepted Answer

The scientist observes a specific group or family of male chimpanzees, not the entire population of chimpanzees. Observing a single group does not equate to observing the entire population.

Question 6

Most scientists have limited access to the behavioral phenomena they study.

Accepted Answer

This is true as scientists who study behavior can generally only observe and measure it in certain controlled settings or through self-report measures. They do not typically have access to observe behavior in all of its natural contexts and variations.

Question 7

Recording the number of dreams recalled is an example of ______ data,whereas recording the time (in minutes)spent in a dream stage of sleep is an example of ______ data.

Accepted Answer

Recording the number of dreams recalled is discrete data because it involves counting whole numbers. Recording the time spent in a dream stage is continuous data because time can be measured in infinitely small units.

Question 8

Descriptive statistics can be used to describe populations and samples.

Accepted Answer

Descriptive statistics can be used to summarize and describe characteristics of populations and samples, such as measures of central tendency (mean, median, mode) and dispersion (variance, standard deviation).

Question 9

Which of the following terms is least likely to be used to describe qualitative data?

Accepted Answer

Qualitative data is non-numeric in nature, so it is least likely to be described using numeric terms like D. Instead, qualitative data is usually described using categories or descriptors, which are represented by terms like A, B, and C in the answer options.

Question 10

A health practitioner measures the heart rate (in number of beats per minute)of patients under low,moderate,and high stress levels.Heart rate can be best described as

Accepted Answer

The answer of A health practitioner measures the heart rate...

Question 11

You are interested in measuring the construct,reinforcement.Which of the following measures for this construct is quantitative and continuous?

Accepted Answer

The size of a reward in grams is a quantitative and continuous measure because it can take any value within a range and can be measured precisely.

Question 12

______ are measured in whole units or categories that are not distributed along a continuum.

Accepted Answer

Discrete data are measured in whole units or categories that are not distributed along a continuum, such as the number of cars sold in a month or the number of children in a family. Continuous data, on the other hand, are measured on a scale with infinite possible values, such as the weight or height of an individual. Quantitative data refers to numerical data that can be expressed in terms of quantity or amount, and can include both discrete and continuous data. Open-ended data refers to data that allows for a range of possible responses, such as in an open-ended survey question.

Question 13

Descriptive statistics is a branch of mathematics used to make inferences about populations given samples of data.

Accepted Answer

Descriptive statistics is used to describe, show or summarize data in a meaningful way, but it does not involve making inferences about populations from samples. That is the purpose of inferential statistics.

Question 14

Researchers often measure sample statistics to estimate or learn more about parameters in populations from which the sample statistics were measured.

Accepted Answer

This is a fundamental concept in statistics, known as statistical inference. By taking a sample from a population, researchers are able to estimate characteristics of the population, such as means or proportions, using the corresponding sample statistics. This is done using statistical methods that take into account the variability of the sample statistic, relative to the population parameter.

Question 15

Quantitative measures can be

Accepted Answer

Quantitative data can be either discrete or continuous. Discrete data refers to values that are distinct and separate, such as the number of siblings a person has or the number of cars in a parking lot. Continuous data refers to measurements that are infinitely divisible, such as height or weight. Therefore, both discrete and continuous data fall under the category of quantitative measures.

Question 16

A social psychologist interested in the expression of love toward a significant other among American family members selects a few American family members for a study.In this example,the few American family members is the sample.

Accepted Answer

The sample is the subset of the population that is selected for the study, and in this example, the few American family members selected for the study are the sample.

Question 17

You are interested in measuring the construct,work expertise.Which of the following measures for this construct is quantitative and discrete?

Accepted Answer

The number of employees who work under an employer is a quantitative measure because it involves counting, and it is discrete because the number of employees can only be whole numbers.

Question 18

Inferential statistics is used to determine if observations made in a sample are likely to also be observed in the population from which the sample was selected.

Accepted Answer

Inferential statistics is indeed used to make educated guesses about the population based on observations made in a sample. The goal is to determine if the findings observed in the sample are statistically significant and therefore can be generalized to the population as a whole.

Question 19

Descriptive statistics are typically presented graphically,in tabular form (in tables),or as summary statistics (single values).

Accepted Answer

Descriptive statistics can be presented in graphical form (such as histograms or scatter plots), tabular form (such as frequency distributions or contingency tables), or as summary statistics (such as mean, median, mode, variance, or standard deviation).

Question 20

Two branches of statistics are independent and dependent statistics.

Accepted Answer

The two main branches of statistics are descriptive statistics and inferential statistics.

Quiz 1: Introduction to Statistics

______ are measured along a continuum at any place beyond the decimal point.

Qualitative data vary by ; quantitative data vary by .

Descriptive statistics and inferential statistics are used for precisely the same purposes.

Researcher A measures academic preparedness as the percent correct responses on an entrance exam; Researcher B measures academic preparedness as the current class rank of students.Which researcher measured academic preparedness as discrete data?

To understand chimpanzee behavior in general,a scientist observes the hierarchy or dominance behavior of a family of male chimpanzees in a naturalistic setting.In this example,the scientist observes the behavior of a population of chimpanzees.

Most scientists have limited access to the behavioral phenomena they study.

Recording the number of dreams recalled is an example of data,whereas recording the time (in minutes) spent in a dream stage of sleep is an example of data.

Descriptive statistics can be used to describe populations and samples.

Which of the following terms is least likely to be used to describe qualitative data?

A health practitioner measures the heart rate (in number of beats per minute) of patients under low,moderate,and high stress levels.Heart rate can be best described as

You are interested in measuring the construct,reinforcement.Which of the following measures for this construct is quantitative and continuous?

______ are measured in whole units or categories that are not distributed along a continuum.

Descriptive statistics is a branch of mathematics used to make inferences about populations given samples of data.

Researchers often measure sample statistics to estimate or learn more about parameters in populations from which the sample statistics were measured.

Quantitative measures can be

A social psychologist interested in the expression of love toward a significant other among American family members selects a few American family members for a study.In this example,the few American family members is the sample.

You are interested in measuring the construct,work expertise.Which of the following measures for this construct is quantitative and discrete?

Inferential statistics is used to determine if observations made in a sample are likely to also be observed in the population from which the sample was selected.

Descriptive statistics are typically presented graphically,in tabular form (in tables),or as summary statistics (single values).

Two branches of statistics are independent and dependent statistics.

Quiz 1: Introduction to Statistics

______ are measured along a continuum at any place beyond the decimal point.

Qualitative data vary by ______; quantitative data vary by ______.

Descriptive statistics and inferential statistics are used for precisely the same purposes.

Researcher A measures academic preparedness as the percent correct responses on an entrance exam; Researcher B measures academic preparedness as the current class rank of students.Which researcher measured academic preparedness as discrete data?

To understand chimpanzee behavior in general,a scientist observes the hierarchy or dominance behavior of a family of male chimpanzees in a naturalistic setting.In this example,the scientist observes the behavior of a population of chimpanzees.

Most scientists have limited access to the behavioral phenomena they study.

Recording the number of dreams recalled is an example of ______ data,whereas recording the time (in minutes) spent in a dream stage of sleep is an example of ______ data.

Descriptive statistics can be used to describe populations and samples.

Which of the following terms is least likely to be used to describe qualitative data?

A health practitioner measures the heart rate (in number of beats per minute) of patients under low,moderate,and high stress levels.Heart rate can be best described as

You are interested in measuring the construct,reinforcement.Which of the following measures for this construct is quantitative and continuous?

______ are measured in whole units or categories that are not distributed along a continuum.

Descriptive statistics is a branch of mathematics used to make inferences about populations given samples of data.

Researchers often measure sample statistics to estimate or learn more about parameters in populations from which the sample statistics were measured.

Quantitative measures can be

A social psychologist interested in the expression of love toward a significant other among American family members selects a few American family members for a study.In this example,the few American family members is the sample.

You are interested in measuring the construct,work expertise.Which of the following measures for this construct is quantitative and discrete?

Inferential statistics is used to determine if observations made in a sample are likely to also be observed in the population from which the sample was selected.

Descriptive statistics are typically presented graphically,in tabular form (in tables),or as summary statistics (single values).

Two branches of statistics are independent and dependent statistics.

Qualitative data vary by ; quantitative data vary by .

Recording the number of dreams recalled is an example of data,whereas recording the time (in minutes) spent in a dream stage of sleep is an example of data.