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SWRK 110 Midterm 1 Kisun Nam Questions with correct Answers
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SWRK 110 Midterm 1 Kisun NamIn research terminology, value refers to: - answerthe specific measure of some variable,
sometimes called attributes
Evidence-based practice (EBP) requires that we: - answerBe knowledgeable about
statistical analysis so that we can determine which findings of researchers are
trustworthy
Two-tailed hypothesis (non-directional) - answerThe hypothesis expect a different
result, not indicating whether or not there is an increase or decrease
Ratio level data - answeris the highest level of measurement. Has a defined unit of
measure, a real zero point, and the intervals between successive values are equal. Ex:
age, height
In the research hypothesis, younger students will learn to use statistical software more
quickly than older students, what is the outcome variable? - answerTime required to
learn to use the statistical software
Once research data has been collected, they can be used to - answerSummarize the
characteristics of the research sample or population that provided them,
estimate the characteristics of the population from which a research sample is drawn,
determine if the pattern of relationships between variables within a sample is likely to be
a real one that exists within a population
A research hypothesis that predicts that male students will be more likely to resell their
textbooks and female students predicts a relationship of - answerAssociation
relationship of association - answerexists between two variables if certain values of one
tend to occur with certain values of the other
Relationship of causation - answerPosition refers to cause-and-effect relationship
Relationship of correlation - answer.
Statistical analysis that examines the relationship among three or more variables
simultaneously is referred to as - answermultivariate
Measurement of a variable that is considered valid - answerMeasures what it is believed
to measure
, How could a researcher operationalize the variable "motivation for learning" among
students and of course on statistics - answerThe average percent of class attendance,
the number of unsolicited student comments. Each class, answers to a question that I
asked students how motivated they are
bivariate analysis - answerthe analysis of two variables simultaneously, for the purpose
of determining the empirical relationship between them
univariate analysis - answerthe analysis of a single variable, for purposes of description
complex analysis of variance - answer.
LeBron is one of four social work students who is 25 years old. In a stem and leaf plot of
the variable "age" among the students, what number is the "leaf" representing LeBron's
age? - answer5
The horizontal line on which the different values etc. on the graph of an interval level
variable is called the - answerX axis or abscissa
For the variable age, Emilyn fell at approximately the 27th percentile rank in her class.
What Does this mean - answerShe is older than approximately 27% of her class
percentile rank - answerPercentage of scores falling at or below a specific score.
Selecting a frequency distribution or graph to display data, the most important
consideration should be - answerHow clearly it communicates the findings
When constructing grouped Frequency distributions, the different categories (intervals)
should - answerContain cases that are similar in relation to the variable being described
A bar graph is to nominal level data as a _ is to interval or ratio level data -
answerHistogram
When is it helpful to include percentages along with frequencies in an absolute
frequency distribution - answerWhen a number of cases is large and an uneven number
absolute frequency vs percentage frequency - answerFirst to the headcount only, not
considering total number of cases, while percentage frequency report the proportion or
percentage of cases compared to the total number of cases
In a bar chart the frequencies for the measurements of a variable are reflected in -
answerHeight of the bars
What level of data cannot be organized to form an array - answerNominal, because an
array orders values, attributes from smallest to largest meaning the data needs to be
ranked
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