Exam 10: Clarifying Measurement and Data Collection in Quantitative Research

A researcher notes a reliability score of 0.75 between two observers in a clinical drug trial evaluating whether the drug decreases anxiety.This score means that:

Which statement is true about validity?

A researcher administers a scale measuring self-confidence and one measuring self-doubt to a group of subjects and performs a correlational analysis of the results.This is a test of validity from:

A researcher evaluates a measurement tool by administering the tool to a group of subjects every 2 weeks for 8 weeks.This is a measure of the tool's:

A researcher wishes to study the effects of preoperative teaching on anxiety levels among toddlers and preschoolers undergoing surgery.To reduce the potential for measurement error,the researcher will:

A researcher uses a checklist of questions to ask participants while collecting data for a study.This represents which type of data collection?

A researcher evaluates whether a tool addresses the major elements of the construct being studied.This helps to ensure:

A researcher reports that a measure is highly sensitive when diagnosing patients.The reviewer understands that this test:

In a study involving multiple data collectors,the researcher helps to ensure consistency in data collection by:

Which is true about a test that is highly specific?

Which is important when using observational measurement in order to produce reliable data?

A researcher reviews study data about head circumference in newborns and notes that study personnel are measuring from the end of the measuring tape and not from the zero point,which is 1 cm from the end.This is an example of which type of measurement error?

Which type of scale is most commonly used in a survey of patient satisfaction?

A researcher conducts a study to identify the relationship of lifestyle choices to the development of chronic diseases.The researcher surveys subjects and identifies diabetes mellitus,coronary artery disease,and renal disease in study subjects.These measures represent which level of measurement?

A nursing professor administers three versions of a final exam to a class of students and compares the exams for reliability.This is a measure of:

A researcher tests a measurement tool's validity by administering it to a group of subjects who don't have health insurance and a group who have health insurance to examine attitudes about access to health care.The researcher is looking for evidence of validity from:

A researcher studying the effects of an intervention on symptoms measures the time from intervention to absence of symptoms and reports this in the number of days.This measure represents which level of measurement?

An instrument that detects the presence of streptococcal antibodies is negative.Before reporting the absence of disease,the researcher must determine whether this result might be a:

A researcher conducts a study to examine the effects of breastfeeding on infant weight at age 6 months.Which type of measurement is used to measure the infants' weight?

In a study evaluating pulse oximetry measures in infants,a researcher notes that the pulse oximeter probes are attached to infants' feet in different ways.This represents which type of measurement error?