'Research Methods' Practice Quiz Chapter 4

. __________ is the research methods term that describes the researcher's ability to measure what is intended.

Reliability.

Dependent variable.

Validity.

Concept.

. The "consistency" or "repeatability" of research results over time is best described as:

reliability.

dependent variable.

validity.

concept.

. When several questions are used to measure a variable (social concept), this is referred to as a(n):

scale.

composite.

index.

All of the above.

. Cronbach's alpha is a statistical tool for measuring scale reliability.

True.

False.

. In research methods, there are different types of validity.

True.

False.

. Inter-item reliability is a measure of internal consistency by measuring if the items or questions measuring the factor of interest are related to one other.

True.

False.

. If two researchers study the same subject yet record (enter into the data analysis software) two different responses, this is referred to as __________ reliability.

intra-observer.

inter-item.

inter-coder.

alternate-forms.

. When research participants are given slightly different questions or measures of the same concept to help increase the reliability of the research results this is referred to as __________ reliability.

intra-observer.

inter-item.

inter-coder.

alternate forms.

. If there is variation (or difference between responses) on survey questions overtime by the same respondent to the same question, this increases the reliability of the testing instrument.

True.

False.

. In regards to symbols used in research methods, __________ represents the dependent variable.

X.

Y.

Z.

None of the above.

. In regards to symbols used in research methods, __________ represents the independent variable.

X.

Y.

Z.

None of the above.

. What is meant when the term "co-vary" is used in research methods?

As one variable changes, so does the other variable.

Research results depend on the varying qualities of the researcher's skills.

If two researchers achieve the same research results, they are said to co-vary.

None of the above.

. An "inverse relationship" between variables means that the results found are opposite of what the research anticipated.

True.

False.

. A goal of some researchers is to be able to generalize their findings to the larger population. This is referred to as:

internal validity.

external validity.

operationalization.

Cronbach's alpha.

. The research term indicating that unknown variables may be influencing the relationship between the independent and dependent variable is known as __________ variables.

exogenous.

outlier.

predictor.

None of the above.

. A positive relationship between variables means that the statistical correlation of the variables move in the same direction.

True.

False.

. Outliers can cause "measures of central tendency" to be higher than they actually are in samples of the population.

True.

False.

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