Question 1

Which of the following statements is TRUE?

Accepted Answer

Statement A is the only one that accurately defines what a test is and what it measures. Statement B is incorrect because an aptitude test measures potential, not competence. Statement C is also incorrect because an achievement test measures what an individual has already accomplished, not their potential to do something.

Question 2

Political affiliation is to the _____ property of measurement and length measured in inches is to the _____ property of measurement.

Accepted Answer

Political affiliation is a nominal scale, which is characterized by the identity property of measurement. Length measured in inches is a ratio scale, which includes the absolute zero property of measurement.

Question 3

A property of measurement in which a difference of 1 is the same amount throughout the entire scale is

Accepted Answer

Equal unit size refers to the fact that each unit of measurement represents the same amount throughout the entire scale. For example, in a scale of temperature measured in Celsius, each degree represents the same amount of temperature change, making it an example of equal unit size. This property is important for ensuring consistency and accuracy in measurement.

Question 4

Arranging a group of individuals from tallest to shortest represents the _____ property of measurement.

Accepted Answer

Magnitude is the property of measurement that refers to the size or amount of a quantity being measured. Arranging a group of individuals from tallest to shortest involves comparing their heights based on their magnitude, rather than relying on an absolute zero point or equal unit size.

Question 5

A scale of measurement in which the units of measurement between the numbers on the scale are all equal in size is a(n)_____ scale.

Accepted Answer

An interval scale is a type of scale where the units of measurement between the numbers on the scale are all equal in size. This means that a difference of one unit on the scale represents the same amount of change throughout the entire scale. Examples of interval scales include temperature scales like Celsius or Fahrenheit, where the difference between 10 degrees and 20 degrees represents the same amount of change as the difference between 70 degrees and 80 degrees.

Question 6

Which of the following represents data arranged on an interval-ratio scale?

Accepted Answer

Reaction time is a numerical measurement on an interval-ratio scale, where the difference between two values is meaningful and can be measured in exact units (seconds in this case). The other options involve categorical or ordinal data.

Question 7

A definition of a variable in terms of the activities a researcher uses to measure or manipulate it is a(n)

Accepted Answer

An operational definition is a definition of a variable in terms of the specific activities a researcher uses to measure or manipulate it. It clarifies the concept in question for the purpose of research and provides a standard way of measuring or manipulating the variable.

Question 8

Discrete variables are to _____ and continuous variables are to _____.

Accepted Answer

Discrete variables are usually whole units and often measured using nominal or ordinal scales, while continuous variables can be both whole units and fractional amounts and are typically measured using interval or ratio scales. Therefore, choice D is the best option as it accurately describes both types of variables.

Question 9

A scale of measurement in which objects or individuals are assigned to categories that have no numerical properties is a(n)_____ scale.

Accepted Answer

Nominal scales are used to categorize data into distinct groups or labels based on specific characteristics or properties. They do not have any inherent order or ranking and are typically used for qualitative data. In this case, the scale has no numerical properties and relies solely on assigning objects or individuals to specific categories.

Question 10

A scale of measurement in which,in addition to order and equal units of measurement,there is an absolute zero that indicates an absence of the variable being measured is a(n)_____ scale.

Accepted Answer

A ratio scale has all the characteristics mentioned in the question, including an absolute zero point. Nominal scales only have named categories, ordinal scales have order but no equal intervals, and interval scales have equal units of measurement but no true zero point.

Question 11

A property of measurement in which objects that are different receive different scores is

Accepted Answer

Identity is a property of measurement where different objects are assigned different scores to distinguish them.

Question 12

Which of the following is NOT a type of self-report measure?

Accepted Answer

A physical self-report measure does not exist as a type of self-report measure. The other options - behavioral, cognitive, and affective self-report measures - are all types of self-report measures commonly used in psychology research.

Question 13

Which of the following represents the best operational definition of hunger?

Accepted Answer

Not having eaten for 18 hours is a more objective and measurable definition of hunger, as opposed to subjective feelings such as a stomach growling or a gnawing feeling.

Question 14

A scale of measurement in which objects or individuals are categorized and the categories form a rank order along a continuum is a(n)_____ scale.

Accepted Answer

An ordinal scale is used to categorize objects or individuals based on a rank order along a continuum. The categories have a logical order, but the differences between them are not necessarily equal. Therefore, an ordinal scale is the best choice for this scenario. A nominal scale only categorizes objects or individuals into distinct groups without any rank order, an interval scale has equal differences between the categories but no meaningful zero point, and a ratio scale has a meaningful zero point but may not be applicable in this scenario.

Question 15

A property of measurement in which the ordering of numbers reflects the ordering of the variable is

Accepted Answer

Magnitude is the property of measurement where the ordering of numbers reflects the ordering of the variable. This means that higher numbers indicate higher values of the variable being measured, and lower numbers indicate lower values. For example, a measurement of weight, where larger numbers indicate heavier objects, exhibits the property of magnitude. Choice A, identity, refers to a property where each object or number is distinct and separate from others, and is not relevant to measuring variables. Choice C, equal unit size, refers to a property where the distance between numbers reflects equal intervals of change, such as on a temperature scale. Choice D, absolute zero, refers to a property where zero represents a complete absence of the variable being measured, such as in temperature measurement.

Question 16

A property of measurement in which assigning a score of zero indicates an absence of the variable being measured is

Accepted Answer

Absolute zero is the property of measurement in which assigning a score of zero indicates an absence of the variable being measured. For example, a temperature reading of zero degrees Kelvin represents the complete absence of molecular motion.

Question 17

Which of the following is NOT a type of measure?

Accepted Answer

An operational definition is not a type of measure. It is a precise explanation of a variable or concept being studied, rather than a tool or instrument used to measure it. A self-report measure is one in which participants report their own thoughts, feelings, or behaviors, such as through a questionnaire; a test is a measure of knowledge or abilities through a set of standardized questions or tasks; and a behavioral measure assesses observable behaviors or actions.

Question 18

Time is to the _____ scale of measurement as ethnicity is to the _____ scale of measurement.

Accepted Answer

Time can be measured on a continuous and quantitative scale, making it a ratio variable. Ethnicity, on the other hand, is a categorical variable with no inherent order, making it a nominal variable.

Question 19

Number on a football jersey is to the _____ scale of measurement and temperature measured on the Fahrenheit scale is to the _____ scale of measurement.

Accepted Answer

The number on a football jersey is a nominal scale of measurement because the numbers are simply labels and do not represent any numerical order. Temperature measured on the Fahrenheit scale is an interval scale of measurement because the differences between temperatures are meaningful but there is no true zero point. Therefore, choice D (nominal; interval) is the best option.

Question 20

Class rank is to the _____ scale of measurement and weight is to the _____ scale of measurement.

Accepted Answer

Class rank is an example of ordinal scale of measurement as it indicates the rank order of individuals based on their academic performance, but does not provide information on the magnitude of the differences between the ranks. Weight, on the other hand, is measured on a ratio scale because it has a true zero point (absence of weight) and the ratios of weights can be meaningfully compared.

Quiz 3: Defining, measuring, and Manipulating Variables

Which of the following statements is TRUE?

Political affiliation is to the _ property of measurement and length measured in inches is to the _ property of measurement.

A property of measurement in which a difference of 1 is the same amount throughout the entire scale is

Arranging a group of individuals from tallest to shortest represents the _____ property of measurement.

A scale of measurement in which the units of measurement between the numbers on the scale are all equal in size is a(n) _____ scale.

Which of the following represents data arranged on an interval-ratio scale?

A definition of a variable in terms of the activities a researcher uses to measure or manipulate it is a(n)

Discrete variables are to _ and continuous variables are to _.

A scale of measurement in which objects or individuals are assigned to categories that have no numerical properties is a(n) _____ scale.

A scale of measurement in which,in addition to order and equal units of measurement,there is an absolute zero that indicates an absence of the variable being measured is a(n) _____ scale.

A property of measurement in which objects that are different receive different scores is

Which of the following is NOT a type of self-report measure?

Which of the following represents the best operational definition of hunger?

A scale of measurement in which objects or individuals are categorized and the categories form a rank order along a continuum is a(n) _____ scale.

A property of measurement in which the ordering of numbers reflects the ordering of the variable is

A property of measurement in which assigning a score of zero indicates an absence of the variable being measured is

Which of the following is NOT a type of measure?

Time is to the _ scale of measurement as ethnicity is to the _ scale of measurement.

Number on a football jersey is to the _ scale of measurement and temperature measured on the Fahrenheit scale is to the _ scale of measurement.

Class rank is to the _ scale of measurement and weight is to the _ scale of measurement.