Exam 2 Practice Questions - Ch 9 Flashcards
The sample includes adults over the age of 18, able to read and speak English, and hospitalized for their first abdominal surgery. What is this an example of? A - Exclusion sampling criteria B - Inclusion sampling criteria C - Population statistics D - Sample characteristics
B - Inclusion sampling criteria
A nurse researcher conducted a grounded theory study of the self-care behavior of patients diagnosed with type 2 diabetes. Ten subjects were selected because they were judged to have strong self-care behavior, and 10 subjects were selected because of their poor self-care behavior. What sampling method was used in this study? A - Cluster B - Convenience C - Network D - Purposive
D - Purposive
The sample for a study was randomly selected from a list of registered nurses (RNs) obtained from the Board of Nurse Examiners (BNE) for Texas. The study had a cultural focus, so the final sample included 100 Caucasian, 100 Hispanic, and 100 African American RNs. What type of sampling method was used in this study? A - Convenience B - Simple random C - Stratified random D - Systematic
C - Stratified random
A research article states that “participants were recommended by others already in the study.” What is this an example of? A - Convenience sampling B - Quota sampling C - Random sampling D - Snowball sampling
D - Snowball sampling
Which of the following methods provides a sample that is most likely to be representative of the target population? A - Convenience sampling B - Purposive sampling C - Quota sampling D - Simple random sampling
D - Simple random sampling
A researcher selected only people with a high intelligence quotient (IQ) to be in her study so that they would perform well on the multiple-choice tests administered to measure the subjects’ knowledge in the study. This study demonstrates which of the following? A - Cluster sample B - Representative sample C - Stratified random sample D - Systematic variation in the sample
D - Systematic variation in the sample
A researcher asked nurses in a hospital to participate in a study that examined the leadership of the hospital. A total of 500 subjects were asked to participate, and 200 consented to be in the study. What is the refusal rate for this study? A - 20% B - 40% C - 60% D - 80%
C - 60%
A researcher asked nurses in a hospital to participate in a study that examined the leadership of the hospital. A total of 500 subjects were asked to participate, and 200 consented to be in the study. What does the sample in this study demonstrate? A - A probability sampling method B - Quota sampling C - Representativeness D - Systematic variation
D - Systematic variation
Which of the following is a type of nonprobability sampling? A - Purposive B - Simple random C - Stratified D - Systematic
A - Purposive
According to sampling theory, findings can be generalized to the
A - individuals in the same social class as the sample.
B - individuals receiving care in the same type of setting.
C - sample under study.
D - target population.
D - target population.
How can the adequacy of a quantitative study’s sample size best be evaluated?
A - Analyzing the samples of previous studies
B - Conducting a power analysis
C - Determining the number of subjects in the target population
D - Examining the design validity
B - Conducting a power analysis
A researcher was conducting a phenomenological study of the lived experience of losing a limb. A convenience sampling method was used to obtain subjects. Subjects were recruited for the study until an equal number of males and females were obtained. The total sample was 14 (7 males and 7 females). What is the sampling method used in this study? A - Purposive B - Quota C - Stratified random D - Systematic
B - Quota
Nurse researchers wanted to study the characteristics of parents who have abused their children. They initially identified parents who consented to participate in the study. Next, they asked these subjects to identify other individuals who might participate in the study. What sampling method was used in this study? A - Convenience B - Network C - Purposive D - Systematic
B - Network
The number of participants or sample size in a qualitative study is adequate when which of the following occurs?
A - A power analysis indicates the power of 0.8 is achieved.
B - Saturation of data is achieved, and additional subjects provide no new information.
C - The sample size is large enough to identify differences between groups in the study.
D - The statistical analysis techniques identify significant findings.
B - Saturation of data is achieved, and additional subjects provide no new information.
Which of the following would the nurse would not consider when critiquing the adequacy of a sample? A - Possibility of a type I error B - Potential biases in the sample C - Sample size D - Sampling criteria
A - Possibility of a type I error
