Exam 8: Clarifying Quantitative Research Designs

Which statement is true about a descriptive study design?

A researcher conducts a quasi-experimental study to determine whether there is improved weight gain among premature infants who are fed according to cue-based protocols.The researcher trained neonatal intensive care nurses to apply cue-based feeding to orally fed infants and notes a statistical difference in weight gain between infants fed according to cue-based protocols and those fed according to standard protocols.The reviewer notes that components of cue-based feedings are not clearly identified.This is a threat to:

A researcher wishes to study the effects of effective sleep hygiene on sleep quality and behavior among children diagnosed with attention deficit disorder.To minimize mono-operation bias,the researcher will:

In a quasi-experimental study using a convenience sample of subjects from a local high school,the researcher asks potential subjects to volunteer for placement in either a "low sugar" diet program or a "regular sugar" diet program.This technique for assigning participation may compromise:

A researcher theorizes a set of relationships among concepts used to describe why patients with chronic illness are often depressed.To test the accuracy of these hypothesized relationships,which type of study will be used?

An important measure to decrease threats to internal validity in an experimental study is to:

When using Consolidated Standards for Reporting Trials (CONSORT)guidelines to critically appraise a randomized controlled trial (RCT),the nurse will make sure that the study:

A researcher develops a 7-point Likert scale to evaluate feelings of well-being in patients who are undergoing chemotherapy.The researcher administers this measure to other,similar patients in other medical centers.This is done in order to:

A researcher conducts a quasi-experimental study to determine whether there is improved weight gain among premature infants who are fed according to cue-based protocols.The researcher trained neonatal intensive care nurses to apply cue-based feeding to orally fed infants and notes a statistical difference in weight gain between infants fed according to cue-based protocols and those fed according to standard protocols.The reviewer notes that parents who gave consent to participate in the study were from a higher socioeconomic class than the population as a whole.This is a threat to:

A nurse researcher wishes to identify rates of pertussis infection in children less than one year of age and then again at 6 years of age to examine the relationship of immunization status on infection rates in this population.This is an example of which type of study design?

A study in which subjects are assigned by the researcher into experimental and control groups increases: