Quantitative Research Critique

Citation in APA format:

Intro
Purpose: 
Research Question: 
Significance: 
Background:

How thorough was the review of literature?

What was the gap of the knowledge to be studied?

Does the literature review support the need for the study?

 
Body
Sample:

IRB and Consent done?

How were participants selected?

Were they representative of the target population?

This research study mentioned that the university’s institutional review board (IRB) did approve this study. Students were informed of this research study, assured privacy, and were allowed to approve or deny participation without any consequences to them or their course grade (Clark et al., 2008, p. 114).

According to Clark et al. (2008) all of the participants of the study were undergraduate nursing students with the majority of them being women between the ages of 20 to 24, and full-time students, all of which were enrolled in required courses (p. 115). Participants were selected from Pharmacology and Case Management courses (Clark et al., 2008, p. 114).

Since the research questions focused on students’ experiences and emotions about team-based learning, using nursing students during nursing courses as participants in this study do indeed represent the target population.

Setting: for data collectionUndergraduate nursing courses at a major medical health science center (Clark et al., 2008, p. 112). Students who had enrolled in either the Nursing Pharmacology class or Case Management for Older Adults course had the opportunity to be apart of this research study (Clark et al., 2008, p. 114).
Design:

Is design appropriate for study purpose(s)?

Two research designs were used to address the proposed research questions. The first design was a group comparison “to evaluate team-based learning pedagogy versus the traditional lecture format on students’ perception of their individual engagement in class” (Clark et al., 2008, p. 114). The second design was developed to determine any changes in students’ attitudes about team-based learning after being introduced to such learning, and involved a pretest and posttest (Clark et al., 2008, p. 114).

Overall, the research questions focused on determining any changes in students’ attitudes and experiences on team-based learning, as well as the differences of students’ engagements between team-based learning and traditional lecture format (Clark et al., 2008, p. 114). The two different research designs are necessary in order to answer the two main research questions, and therefore are appropriate for this study’s purpose.

Variables

What is/are the independent variable(s)?

What is/are the dependent variable(s)?

Independent variables-Undergraduate students enrolled in a major medical health science center, Pharmacology course and students enrolled, Case Management course and students enrolled.

Dependent variables- Students participation and engagement, student enjoyment, teams consisting of 7 different students, and pretest and posttest scores.

Methodology – Data Collection ProceduresFirst Research Design: Students in the Nursing Pharmacology course received traditional lectures, while students in the Case Management class participated in team-based learning. Even though the courses contained different content, the two different courses along with two different teaching methods were chosen to compare effectiveness of one teaching method to another (Clark et al., 2008, p. 114).

Second Research Design: Students in both the Nursing Pharmacology or Case Management class completed the Value of Teams Survey at the beginning and end of the semester. Also, at the end of the semester the same students were asked to grade their individual team’s process and performance (Clark et al., 2008, p. 114).

Results were collected from the Case Management 5-hour course (which included the team-based learning) that lasted 8 weeks and had 70 nursing students that were enrolled. Four modules, of the total eight modules, used team-based learning. All teams were formed by the course director, which consisted of 7 students. The teams remained together throughout the entire course. Four Readiness Assurance Tests were conducted during the course where students were able to provide immediate feedback, challenge multiple-choice questions, and all teams worked together on the same problem. At the end of the course, students were graded on individual and group Readiness Assurance Tests and peer evaluations (Clark et al., 2008, p. 115).

In contrast, the Nursing Pharmacology class lasted 15 weeks, which included the lecture format teaching (Clark et al., 2008, p. 114).

Measurements:

Describe the reliability and validity of

Instruments used.

The 8-item Likert-type Classroom Engagement Survey measures the student’s engagement during class. It was made and tested only on the FIPSE (Fund for the Improvement of Postsecondary Education) team-based learning project before being used in this research study (Clark et al., 2008, p. 114). Clark et al. (2008) stated this survey’s “initial factor analysis demonstrated adequate validity” (p. 114). In addition, the Cronbach alphas helped to determine the reliability in this sample of nursing students with this particular survey, and since the alphas were 0.80 and 0.81 at time 1 (learner’s participation- 5 items) and 0.81 and 0.88 at time 2 (learner enjoyment- 3 items), it demonstrated high reliability (Clark et al., 2008, p. 114).

Another instrument used was the 9-item Likert-type Value of Team survey, which measures a student’s appreciation of learning and was also developed and tested on the FIPSE team-based learning project (Clark et al., 2008, p. 114). According to Clark et al. (2008) this survey’s “initial factor analysis demonstrated adequate validity” (p. 114). Cronbach alphas were also used and it was determined this instrument also showed high reliability in this research example of nursing students (Clark et al., 2008, p. 114-115). For example, alphas were 0.84 and 0.88 at time 1 (working with peers- 4 items) and 0.76 and 0.81 at time 2 (value of group work- 5 items), while during the FIPSE team-based learning project Cronbach alphas were 0.92 at time 1 and 0.87 at time 2 (Clark et al., 2008, p. 114).

Data Analysis:

How were data analyzed?

Was the analysis appropriate (appropriate statistics used)?

What were the outcome measures?

“Descriptive statistics were generated to understand the distribution of responses to items” (Clark et al., 2008, p. 115). In addition, cross-sectional relationships between variables were explored, group differences in engagement scores between lecture and team-based learning were measured, and the change in value of team’s scores between the first and last day of class were evaluated (team-based pedagogy group) (Clark et al., 2008, p. 115). The results were listed in two different tables- Table 3 and Table 4.

Statistics used were Pearson r correlations for cross-sectional relationships between variables, a t test was done to determine group differences in engagement of lecture or team-based learning, and a paired t test for team-based learning pedagogy and the change in value of team’s scores during the course length (Clark et al., 2008, p. 115). These statistics are appropriate in comparing 2 populations with 2 samples (peer and group with pretest and posttest- paired t test), to assess whether 2 groups are different from one another (lecture or team-based learning from t test), and how everything is related (Pearson r correlations). Therefore, the analysis is applicable to support this research study.

Outcome measures of Table 3 summarized that there was a dramatic increase in participation in team-based learning rather than traditional lecture format learning. However, there was a substantial difference in enjoyment of students with higher scores in lecture setting rather than team-learning based course setting. Results from Table 4 summarized that students rated their attitude towards the value of teams relatively high and this value minimally changed between the pretest and posttest (Clark et al., 2008, p. 115).

Findings:“This study describes the experience of incorporating a team-based learning method into an undergraduate nursing course” (Clark et al., 2008, p. 115). Overall, team-based learning increases student engagement and in-class participation.
Conclusion
Significance 
Implications, and for whom 
Analysis of article’s references: how recent compared to article (within 5 years?), reputation of journal, peer reviewed? 
Scientific Merit of Entire Manuscript:

Validity: accuracy of results & Reliability (taken from Schmidt & Brown, 2014, Chapter 6)

Internal validity: trust that results were due to the independent variable and not the threats belowReport below on the possible threats to this study’s internal validity, and ways that the study minimized these threats.
Selection bias: results due to pre-existing characteristics of subjects 
History: results due to something in environment or over time that changed subjects 
Maturation: results due to changes occurring naturally over time 
Testing: results due to influence of pretest 
Instrumentation: change in types of instrument or concern of interrater reliability 
Mortality: results due to loss (not death) of subjects that scew who remained in study.

Reports on the attrition rate, which is not high.

 
Statistical conclusion validity: degree that results of statistical analysis is true.

Minimizes both type I (finds statistical significance when there isn’t a real relationship) and type II (not statistically significant when there is a relationship) errors

Comment on the level of significance chosen (i.e., 0.05) and why.
Threats of external validity: how generalizable are results to other settings/populationsReport below on the possible threats to this study’s external validity, and ways that the study minimized these threats.
Construct validity: did the instruments used in the study really measure what they said they were going to? 
Bias: systematic error in the research process. Can be found in selection of subjects, instruments, or analysis. Can you discern any? 
Confounding: other plausible reasons for the results. Are there any present that you can discern? 
Reactivity: subject changed from the research and not the independent variable (Hawthorne effect). Evident? 
Application:

Is the information obtained from this study applicable to those in practice?

 
Ethical Issues

Documentation of IRB approval?

Your group’s opinion of if this project was worthwhile to conduct.

What harms were possible for subjects (recall your CITI training) and how was this mitigated?

Do you have any concerns of fraud or deception on the part of the researchers?

Any possible conflicts of interest detected?

 

 

 

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