1Which quality of a measurement tool indicates that it measures what it is intended to measure?
Tools of sound measurement
Easy
A.Validity
B.Reliability
C.Objectivity
D.Practicality
Correct Answer: Validity
Explanation:
Validity refers to how accurately a tool measures the concept it is intended to measure.
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2What does the reliability of a measurement tool indicate?
Tools of sound measurement
Easy
A.Cost of measurement
B.Consistency of results
C.Appearance of the tool
D.Ability to measure every possible characteristic of all respondents
Correct Answer: Consistency of results
Explanation:
A reliable tool produces consistent results when used repeatedly under similar conditions.
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3A measurement tool is objective when its results are:
Tools of sound measurement
Easy
A.Limited to qualitative data
B.Different for each scorer
C.Free from scorer bias
D.Based on personal opinions
Correct Answer: Free from scorer bias
Explanation:
Objectivity means that results do not depend on the personal judgment or bias of the scorer.
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4Which characteristic allows a measurement tool to detect small differences among respondents?
Tools of sound measurement
Easy
A.Economy
B.Simplicity
C.Sensitivity
D.Uniformity
Correct Answer: Sensitivity
Explanation:
Sensitivity is the ability of a tool to detect small differences or changes in what is being measured.
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5What is the main purpose of pilot testing a newly developed measurement tool?
Techniques of developing measurement tools
Easy
A.To increase the sample size
B.To identify possible problems
C.To replace data analysis
D.To publish the final results
Correct Answer: To identify possible problems
Explanation:
Pilot testing helps identify unclear questions, design problems, and other weaknesses before the main study.
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6What is item analysis used for when developing a measurement tool?
Techniques of developing measurement tools
Easy
A.Selecting effective items
B.Choosing research participants
C.Calculating the research budget
D.Preparing a complete theoretical account of the research topic
Correct Answer: Selecting effective items
Explanation:
Item analysis evaluates individual items so that weak or unsuitable items can be revised or removed.
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7Why are operational definitions prepared during tool development?
Techniques of developing measurement tools
Easy
A.To remove all research limitations
B.To summarize the final findings
C.To define how variables are measured
D.To select a publication journal
Correct Answer: To define how variables are measured
Explanation:
An operational definition states how a variable will be observed or measured in the study.
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8What does standardization of a measurement tool primarily require?
Techniques of developing measurement tools
Easy
A.Frequent changes to every item
B.Removal of scoring guidelines
C.Uniform administration procedures
D.Different instructions for each person
Correct Answer: Uniform administration procedures
Explanation:
Standardization requires the tool to be administered and scored in the same way for all respondents.
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9What is scaling in research methodology?
Meaning of scaling
Easy
A.Reviewing published literature
B.Selecting only large samples
C.Assigning values to characteristics
D.Writing a research report
Correct Answer: Assigning values to characteristics
Explanation:
Scaling is the process of assigning numbers or symbols to characteristics according to defined rules.
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10A scale generally places respondents or objects on a:
Meaning of scaling
Easy
A.Sampling frame containing every member of the target population
B.Random list
C.Reference page
D.Measurement continuum
Correct Answer: Measurement continuum
Explanation:
A scale places respondents or objects along a continuum representing different levels of a characteristic.
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11In attitude measurement, scaling is commonly used to represent the:
Meaning of scaling
Easy
A.Intensity of an attitude
B.Number of research assistants
C.Address of a respondent
D.Length of a questionnaire
Correct Answer: Intensity of an attitude
Explanation:
Scaling converts the direction or intensity of an attitude into categories or numerical values.
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12Which scaling technique commonly uses response categories from "strongly disagree" to "strongly agree"?
Important scaling techniques
Easy
A.Guttman scale
B.Ranking scale
C.Likert scale
D.Thurstone scale
Correct Answer: Likert scale
Explanation:
A Likert scale asks respondents to indicate their level of agreement or disagreement with a statement.
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13Which technique asks respondents to rate an object between opposite adjectives such as "good" and "bad"?
Important scaling techniques
Easy
A.A detailed interview schedule using only open-ended questions
B.Paired comparison
C.Simple ranking
D.Semantic differential
Correct Answer: Semantic differential
Explanation:
A semantic differential scale uses pairs of opposite adjectives to measure perceptions or attitudes.
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14Which scaling technique asks respondents to arrange several items from most preferred to least preferred?
Important scaling techniques
Easy
A.Ranking
B.Observation
C.Classification
D.Rating
Correct Answer: Ranking
Explanation:
Ranking requires respondents to place items in an order based on preference or another criterion.
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15In a paired-comparison scale, a respondent compares:
Important scaling techniques
Easy
A.One item with a population
B.All items at one time
C.Scores from several unrelated studies conducted at different times
D.Two items at a time
Correct Answer: Two items at a time
Explanation:
Paired comparison presents two items at a time and asks the respondent to choose between them.
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16Which scaling technique is based on cumulative statements arranged by increasing intensity?
Important scaling techniques
Easy
A.Guttman scaling
B.Semantic differential
C.Likert scaling
D.Paired comparison
Correct Answer: Guttman scaling
Explanation:
A Guttman scale is cumulative, so agreement with a stronger item generally implies agreement with weaker items.
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17Which scale of measurement classifies data into categories without any order?
Statistical properties of different scales
Easy
A.Interval scale
B.A ratio scale with equal units and a meaningful absolute zero
C.Ordinal scale
D.Nominal scale
Correct Answer: Nominal scale
Explanation:
A nominal scale uses categories or labels without ranking them.
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18Which measure of central tendency is always suitable for nominal data?
Statistical properties of different scales
Easy
A.Mean
B.Mode
C.Standard deviation
D.Median
Correct Answer: Mode
Explanation:
The mode identifies the most frequent category and can therefore be used with nominal data.
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19Which scale provides ordered categories but does not guarantee equal intervals between them?
Statistical properties of different scales
Easy
A.Ordinal scale
B.Interval scale
C.Nominal scale
D.Ratio scale
Correct Answer: Ordinal scale
Explanation:
An ordinal scale ranks observations, but the differences between successive ranks may not be equal.
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20Which scale has equal intervals and a true zero point?
Statistical properties of different scales
Easy
A.Nominal scale
B.Ordinal scale
C.Interval scale
D.Ratio scale
Correct Answer: Ratio scale
Explanation:
A ratio scale has equal units and a meaningful zero, allowing comparisons such as "twice as much."
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21A questionnaire produces nearly identical scores when administered to the same respondents two weeks apart, assuming their attitudes have not changed. Which quality is demonstrated?
Tools of sound measurement
Medium
A.Criterion validity
B.Inter-rater reliability
C.Content validity
D.Test-retest reliability
Correct Answer: Test-retest reliability
Explanation:
Test-retest reliability reflects the stability of scores when the same instrument is administered to the same group at different times.
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22A researcher asks several subject experts to determine whether a job-satisfaction questionnaire adequately covers pay, supervision, promotion, and working conditions. What is primarily being assessed?
Tools of sound measurement
Medium
A.Content validity
B.Internal consistency
C.Construct validity
D.Predictive validity
Correct Answer: Content validity
Explanation:
Content validity examines whether the items adequately represent all important aspects of the concept being measured.
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23Scores from a newly developed aptitude test are strongly associated with employees' job-performance ratings six months later. Which property does this evidence support?
Tools of sound measurement
Medium
A.Split-half reliability
B.Face validity
C.Concurrent validity
D.Predictive validity
Correct Answer: Predictive validity
Explanation:
Predictive validity is supported when current test scores successfully predict a relevant outcome measured in the future.
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24Two observers independently classify the same classroom behaviors and agree on 92% of their classifications. Which measurement quality is most directly supported?
Tools of sound measurement
Medium
A.Content validity
B.Test-retest reliability
C.Convergent validity
D.Inter-rater reliability
Correct Answer: Inter-rater reliability
Explanation:
Inter-rater reliability measures the consistency of judgments made by different observers evaluating the same events.
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25Before writing questionnaire items for "digital literacy," a researcher specifies observable abilities such as evaluating websites and using spreadsheets. Which development step is illustrated?
Techniques of developing measurement tools
Medium
A.Randomizing the sample
B.Standardizing the scores
C.Tabulating the responses
D.Operationalizing the construct
Correct Answer: Operationalizing the construct
Explanation:
Operationalization translates an abstract construct into specific, observable, and measurable indicators.
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26During a pilot study, almost every respondent selects the highest response category for one item. What is the most appropriate action?
Techniques of developing measurement tools
Medium
A.Review it for poor discrimination
B.Double its numerical weight
C.Remove the lowest category
D.Retain it without revision
Correct Answer: Review it for poor discrimination
Explanation:
An item receiving nearly identical responses provides little discrimination and should be revised or removed after review.
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27A ten-item scale has a low Cronbach's alpha. Deleting Item 7 substantially increases alpha, and Item 7 has a negative item-total correlation. What should the researcher do first?
Techniques of developing measurement tools
Medium
A.Increase every item's score
B.Reduce the pilot sample
C.Inspect Item 7 for faulty wording
D.Replace alpha with the mean
Correct Answer: Inspect Item 7 for faulty wording
Explanation:
A negative item-total correlation may indicate incorrect reverse coding, ambiguity, or measurement of a different construct.
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28What is the main purpose of conducting a pilot test before administering a newly developed questionnaire to the full sample?
Techniques of developing measurement tools
Medium
A.To replace the final sampling procedure
B.To establish the population parameter
C.To identify wording and administration problems
D.To guarantee statistically significant results
Correct Answer: To identify wording and administration problems
Explanation:
Pilot testing helps detect unclear items, response difficulties, timing issues, and weaknesses in administration procedures.
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29A researcher assigns respondents scores from 1 to 7 according to how favorable their attitudes are toward remote work. What does scaling accomplish in this case?
Meaning of scaling
Medium
A.Converts attitudes into categories only
B.Selects respondents from a population
C.Eliminates errors from responses
D.Places attitudes along a continuum
Correct Answer: Places attitudes along a continuum
Explanation:
Scaling locates objects or respondents on a continuum according to the degree of a measured characteristic.
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30Which statement best distinguishes measurement from scaling in research?
Meaning of scaling
Medium
A.Measurement assigns values, while scaling creates a continuum
B.Measurement collects data, while scaling removes variation
C.Measurement tests validity, while scaling tests reliability
D.Measurement ranks cases, while scaling selects a sample
Correct Answer: Measurement assigns values, while scaling creates a continuum
Explanation:
Measurement assigns numbers or symbols according to rules, whereas scaling constructs a continuum on which measured objects are located.
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31A customer is classified as "dissatisfied," "neutral," or "satisfied." Which feature of scaling is present even though the categories have no stated numerical distance?
Meaning of scaling
Medium
A.Ordered placement on a continuum
B.Equal intervals between categories
C.A meaningful absolute zero
D.Direct measurement of magnitude
Correct Answer: Ordered placement on a continuum
Explanation:
The categories indicate an ordered progression of satisfaction, but they do not establish equal distances between adjacent categories.
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32Why should a researcher define the direction of a scale before analyzing responses?
Meaning of scaling
Medium
A.To make unequal intervals statistically equal
B.To interpret whether higher scores mean more of the construct
C.To ensure that every respondent receives a unique score
D.To convert every scale into a ratio scale
Correct Answer: To interpret whether higher scores mean more of the construct
Explanation:
Defining direction clarifies whether increasing scores represent more or less of the characteristic being measured.
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33Respondents indicate agreement with each statement using categories from "strongly disagree" to "strongly agree," and item scores are summed. Which technique is used?
Important scaling techniques
Medium
A.Thurstone scaling
B.Likert scaling
C.Stapel scaling
D.Guttman scaling
Correct Answer: Likert scaling
Explanation:
A Likert scale asks respondents to indicate degrees of agreement and commonly combines scores across several statements.
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34A brand is rated between bipolar adjective pairs such as "unreliable–reliable" and "traditional–modern." Which scaling technique is most appropriate?
Important scaling techniques
Medium
A.Semantic differential scale
B.Paired comparison scale
C.Constant-sum scale
D.Guttman cumulative scale
Correct Answer: Semantic differential scale
Explanation:
Semantic differential scales measure perceptions using positions between two opposing adjectives.
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35A respondent allocates 100 points among price, quality, service, and convenience according to their relative importance. Which technique is being applied?
Important scaling techniques
Medium
A.Rank-order scaling
B.Constant-sum scaling
C.Stapel scaling
D.Likert scaling
Correct Answer: Constant-sum scaling
Explanation:
Constant-sum scaling requires respondents to distribute a fixed total among attributes to show relative importance.
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36A political participation scale is designed so that agreeing with a difficult item implies agreement with all easier items below it. Which technique does this describe?
Important scaling techniques
Medium
A.Likert scaling
B.Semantic differential scaling
C.Thurstone scaling
D.Guttman scaling
Correct Answer: Guttman scaling
Explanation:
Guttman scaling is cumulative: endorsement of a higher-level item implies endorsement of lower-level items.
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37Employees are assigned department codes: 1 for Sales, 2 for Finance, and 3 for Operations. Which statistic is most appropriate for describing the most common department?
Statistical properties of different scales
Medium
A.Mode
B.Mean
C.Median
D.Standard deviation
Correct Answer: Mode
Explanation:
Department codes form a nominal scale, for which frequencies and the mode are meaningful but arithmetic averages are not.
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38Contestants are ranked first, second, and third, but the performance gaps are unknown. Which summary measure is appropriate for these rankings?
Statistical properties of different scales
Medium
A.Median
B.Arithmetic mean
C.Coefficient of variation
D.Geometric mean
Correct Answer: Median
Explanation:
Rankings are ordinal data, so the median is meaningful because it depends on order rather than equal numerical intervals.
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39Temperature measured in Celsius permits meaningful differences but not meaningful ratios. Why is the statement "C is twice as hot as C" invalid?
Statistical properties of different scales
Medium
A.Temperature has no measurable variation
B.The Celsius zero point is arbitrary
C.Celsius values cannot be ordered
D.Celsius intervals are unequal
Correct Answer: The Celsius zero point is arbitrary
Explanation:
Celsius is an interval scale with an arbitrary zero, so differences are meaningful but ratios are not.
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40A researcher converts every weight from kilograms to grams using . Why are ratio comparisons preserved after this transformation?
Statistical properties of different scales
Medium
A.The transformation adds a fixed constant
B.The transformation changes ranks randomly
C.The transformation creates an arbitrary zero
D.The transformation multiplies by a positive constant
Correct Answer: The transformation multiplies by a positive constant
Explanation:
Ratio scales permit transformations of the form where , preserving the true zero and all ratios.
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41A researcher measures classroom participation using a 12-item observation schedule. Two observers agree on 92% of ratings, but nearly all students are classified as "low participation." Which statistic is most appropriate for assessing agreement while correcting for chance?
Tools of sound measurement
Hard
A.Pearson's correlation coefficient
B.Cronbach's alpha coefficient
C.Cohen's kappa coefficient
D.Spearman-Brown coefficient
Correct Answer: Cohen's kappa coefficient
Explanation:
Cohen's kappa evaluates agreement between two raters on categorical outcomes while adjusting observed agreement for agreement expected by chance.
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42A new anxiety inventory correlates strongly with an established anxiety scale but also correlates almost equally with a depression scale. Which conclusion is most defensible?
Tools of sound measurement
Hard
A.Content validity is established, but criterion validity is questionable
B.Convergent validity is supported, but discriminant validity is questionable
C.Predictive validity is established, but concurrent validity is questionable
D.Discriminant validity is supported, but convergent validity is questionable
Correct Answer: Convergent validity is supported, but discriminant validity is questionable
Explanation:
The strong association with another anxiety measure supports convergence, whereas the similarly strong association with depression indicates poor differentiation between constructs.
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43A knowledge test produces highly consistent scores across repeated administrations, yet experts find that it omits two major domains in the course specification. Which property is primarily deficient?
Tools of sound measurement
Hard
A.Temporal stability
B.Content validity
C.Scorer objectivity
D.Inter-rater reliability
Correct Answer: Content validity
Explanation:
Stable scores indicate reliability, but omission of major content domains means the test does not adequately represent the intended construct domain.
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44A researcher needs to measure a latent construct whose manifestations differ substantially across cultural groups. Which approach best supports sound cross-cultural measurement?
Tools of sound measurement
Hard
A.Retain only items with identical response frequencies
B.Establish measurement invariance before comparing group means
C.Use literal translation and compare raw total scores
D.Standardize scores separately and assume construct equivalence
Correct Answer: Establish measurement invariance before comparing group means
Explanation:
Meaningful group-mean comparisons require evidence that the construct and item parameters operate equivalently across groups, especially scalar invariance.
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45During scale development, an item has a corrected item-total correlation of , but experts judge it essential for covering a theoretically distinct facet. What is the best next action?
Techniques of developing measurement tools
Hard
A.Revise it and evaluate the facet with additional items
B.Reverse-score it because low correlations imply opposite wording
C.Retain it unchanged because expert judgment overrides statistics
D.Delete it immediately because its correlation is below
Correct Answer: Revise it and evaluate the facet with additional items
Explanation:
A low item-total correlation may reflect poor wording or multidimensionality. Because the facet is theoretically essential, revising the item and adding indicators is preferable to automatic deletion.
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46An exploratory factor analysis of 30 newly written items yields four correlated factors, although theory predicts one higher-order construct expressed through four dimensions. Which analytic strategy is most appropriate next?
Techniques of developing measurement tools
Hard
A.Average all items because the dimensions are correlated
B.Fit a higher-order confirmatory factor model to new data
C.Delete items until a single eigenvalue exceeds one
D.Run an orthogonal rotation and force factor independence
Correct Answer: Fit a higher-order confirmatory factor model to new data
Explanation:
A higher-order confirmatory model directly tests whether the correlated dimensions are explained by the theorized broader construct, ideally using an independent sample.
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47In classical test theory, a 20-item scale has reliability . Assuming added items are parallel to the original items, approximately how many total items are required to reach reliability ?
Techniques of developing measurement tools
Hard
A.30 items
B.40 items
C.60 items
D.50 items
Correct Answer: 40 items
Explanation:
Using the Spearman-Brown formula, gives . Therefore, the test must double from 20 to 40 items.
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48A pilot scale has Cronbach's alpha of , but several items are nearly paraphrases of one another and the scale poorly predicts an external criterion. What is the most accurate interpretation?
Techniques of developing measurement tools
Hard
A.The scale is unidimensional because alpha exceeds
B.The scale may be redundant without adequate criterion validity
C.The criterion must be unreliable because alpha is very high
D.The scale is valid because high reliability limits measurement error
Correct Answer: The scale may be redundant without adequate criterion validity
Explanation:
Alpha can be inflated by repetitive items. High internal consistency alone neither establishes unidimensionality nor demonstrates that scores relate appropriately to external criteria.
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49Which statement best distinguishes measurement from scaling in social research?
Meaning of scaling
Hard
A.Measurement assigns values by rules, while scaling locates entities on a continuum
B.Measurement applies only to objects, while scaling applies only to respondents
C.Measurement produces raw data, while scaling necessarily produces standardized data
D.Measurement ranks observations, while scaling always establishes equal intervals
Correct Answer: Measurement assigns values by rules, while scaling locates entities on a continuum
Explanation:
Measurement is the broader rule-based assignment of values to attributes. Scaling specifically constructs or uses a continuum on which objects, persons, or responses are positioned.
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50Respondents rank five policies from most to least preferred. Why does this operation not, by itself, justify interpreting the difference between ranks 1 and 2 as equal to the difference between ranks 4 and 5?
Meaning of scaling
Hard
A.Ranks identify order but do not establish equal intervals
B.Ranks establish intervals but do not provide an absolute zero
C.Ranks measure proportions but do not preserve preference direction
D.Ranks permit classification but do not establish any ordering
Correct Answer: Ranks identify order but do not establish equal intervals
Explanation:
Ordinal scaling preserves relative order only. The numerical gaps between successive ranks do not represent known or equal differences in the underlying preference.
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51A transformation changes every score according to . For which highest scale level does this transformation always preserve the scale's admissible meaning?
Meaning of scaling
Hard
A.Interval scale
B.Nominal scale only
C.Ratio scale
D.Ordinal scale only
Correct Answer: Interval scale
Explanation:
Interval scales permit positive linear transformations of the form with . Adding 12 changes the zero point, so the transformation is not generally admissible for ratio scales.
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52Researchers encode employment status as unemployed , part-time , and full-time . They then report that full-time status is "three times" unemployment status. What is the fundamental error?
Meaning of scaling
Hard
A.Treating interval scores as ratio-scale quantities
B.Treating nominal category codes as ratio-scale quantities
C.Treating dichotomous outcomes as continuous quantities
D.Treating ordinal ranks as interval-scale quantities
Correct Answer: Treating nominal category codes as ratio-scale quantities
Explanation:
The numbers are arbitrary labels for categories and carry no quantitative magnitude. Ratios such as "three times" are therefore meaningless.
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53Judges assign favorability values to attitude statements, and respondents later indicate only whether they agree with each statement. A respondent's attitude score is based on the scale values of endorsed items. Which technique is being used?
Thurstone scaling uses judges to locate statements along an attitude continuum, after which respondents endorse statements and receive scores based on the statements' assigned scale values.
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54Four items are intended to form a perfect Guttman scale from easiest to hardest. A respondent endorses items 1, 2, and 4 but rejects item 3. How should this pattern be interpreted?
Important scaling techniques
Hard
A.It is acceptable because only the number of endorsements matters
B.It proves item 4 is easier than item 3 for all respondents
C.It indicates equal intervals between the four item thresholds
D.It is a scale error because endorsement violates cumulative ordering
Correct Answer: It is a scale error because endorsement violates cumulative ordering
Explanation:
In a cumulative Guttman pattern, endorsing a harder item implies endorsing every easier item. Endorsing item 4 while rejecting item 3 violates that deterministic order.
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55A researcher asks respondents to rate a university from to using a single adjective, "innovative," displayed above the numbers. Which technique is most directly represented?
Important scaling techniques
Hard
A.Stapel scale
B.Bogardus scale
C.Semantic differential scale
D.Likert scale
Correct Answer: Stapel scale
Explanation:
A Stapel scale uses one adjective with a numerical range extending in positive and negative directions. A semantic differential instead uses bipolar adjective pairs.
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56A paired-comparison study contains 10 brands, and every unordered pair must be evaluated once. How many distinct comparisons are required?
Important scaling techniques
Hard
A.40 comparisons
B.45 comparisons
C.50 comparisons
D.90 comparisons
Correct Answer: 45 comparisons
Explanation:
The number of unordered pairs is .
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57Which analysis remains meaningful under every admissible strictly increasing transformation of ordinal data?
Statistical properties of different scales
Hard
A.Comparing standard deviations
B.Comparing geometric means
C.Comparing arithmetic means
D.Comparing rank-order medians
Correct Answer: Comparing rank-order medians
Explanation:
Strictly increasing transformations preserve order, so order-based statistics such as medians remain meaningful. Means and standard deviations depend on numerical distances.
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58Temperatures measured in Celsius are converted to Fahrenheit. Which statement remains invariant under this transformation?
Statistical properties of different scales
Hard
A.The coefficient of variation is unchanged
B.One temperature is twice another
C.The geometric mean retains the same substantive meaning
D.The Pearson correlation with another variable is unchanged
Correct Answer: The Pearson correlation with another variable is unchanged
Explanation:
A positive linear transformation preserves Pearson correlation. Ratios, geometric means, and coefficients of variation are not meaningful or invariant when an interval scale has an arbitrary zero.
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59A ratio-scale variable is transformed to . Which quantity is guaranteed to remain numerically unchanged?
Statistical properties of different scales
Hard
A.Interquartile range
B.Standard deviation
C.Coefficient of variation
D.Arithmetic mean
Correct Answer: Coefficient of variation
Explanation:
Multiplication by 4 scales both the mean and standard deviation by 4, leaving unchanged. The other listed statistics are multiplied by 4.
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60A researcher analyzes a single five-category Likert item with a highly skewed distribution and no defensible equal-interval assumption. Which summary is most consistent with its formal measurement level?
Statistical properties of different scales
Hard
A.Median and interquartile range
B.Mean and standard deviation
C.Harmonic mean and coefficient of variation
D.Geometric mean and variance
Correct Answer: Median and interquartile range
Explanation:
A single Likert item is formally ordinal. The median and interquartile range use ordering without requiring equal distances between adjacent response categories.
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