Which of the following is an example of a research finding that lacks practical significance?

A research study with 10,000 participants finds that a new, intensive 40-hour study program produces a statistically significant increase in test scores, but the average improvement is only 0.5 points on a 100-point exam. In this scenario, it would be accurate to conclude that the finding has high practical significance because the results are statistically significant.

A researcher finds that a new 60-hour therapeutic intervention for social phobia results in a statistically significant improvement ($p < .01$). Arrange the logical steps the researcher would follow to determine if this finding is significant enough to be implemented in a real-world clinical setting.

A study finds that a new treatment for social phobia produces a statistically significant positive effect. However, the improvement is too weak to justify the time, effort, and financial costs required for its implementation. This scenario is an example of a finding that lacks practical significance.

A clinical study finds that a new, intensive 12-week behavioral program for social phobia produces a statistically significant reduction in symptoms (p < .05) compared to a simple self-help book. However, the actual difference in symptom scores is only 1 point on a 100-point scale. Arrange the logical steps a researcher takes to analyze why this finding lacks practical significance.

In psychological research, a finding can be statistically significant without being practically significant. Match each research scenario with the primary reason it lacks practical significance.

According to the course material, which of the following scenarios is an example of a research finding that lacks practical significance?

A clinical director reviews a study on a new anxiety treatment that is statistically significant ($p < .01$) but produces a symptom reduction of only $0.5\%$ on a standardized scale. By judging that this 'real-world' impact is too small to justify the high cost and effort of implementing it over cheaper existing treatments, the director is concluding that the study lacks _____ significance.

An educational district is offered a new reading program for $20,000 that demonstrated a statistically significant ($p < .05$) increase in student reading speeds by an average of $3$ words per minute. If the district rejects the program because the benefit is too small to warrant the financial cost and training time, they are making a judgment based on the study's lack of _____ significance.

Match each research finding to the primary reason it is considered statistically significant but practically insignificant.

Based on the course material on practical significance, recall and describe the two specific examples of research findings that are statistically significant but lack practical significance.

Using your comprehension of practical significance, decide whether the researcher should recommend this program, justify your decision based on the details in the case, and state which example from the course reading this scenario resembles.

A school psychologist conducts a large-scale study on gender differences in mathematical problem-solving and finds a statistically significant difference ($p < .01$), but the mean difference is only $0.08$ points on a 100-point test. Apply the concept of practical significance to explain how the psychologist should interpret this result in a real-world educational setting.