Replication Crisis in Science

Impact of Replication Outcomes on Scientific Findings

A research team publishes a novel study concluding that a specific 5-minute daily puzzle-solving activity dramatically enhances creative problem-solving skills in adults. The study receives significant media attention. From a scientific standpoint, what is the most important reason for an independent lab to perform a similar study?

A research team finds that a specific mindfulness exercise significantly improves focus in a sample of high school students. Before the scientific community accepts this as a robust finding, other independent researchers repeat the same study using new samples of participants. Which of the following best explains the primary scientific purpose of this process?

Match each psychology research scenario involving an attempt to repeat a study with the most appropriate scientific conclusion regarding the original finding.

Arrange the following research scenarios based on the degree to which they minimize the likelihood that a significant finding is a statistical artifact rather than a genuine phenomenon, from the least protection against error (1) to the most protection against error (3).

A researcher is making a scientifically sound judgment when they conclude that a single study with a statistically significant result ($p < .05$) provides definitive evidence of a real-world effect, rendering further replication unnecessary.

A researcher publishes a study finding that students who listened to a 'nature sounds' recording for 10 minutes increased their scores on a creativity test ($p = .042$; $N = 16$). You are tasked with constructing a multi-phase research program to determine if this finding is a genuine phenomenon or a statistical artifact. Which of the following plans represents the most scientifically robust synthesis of replication principles?

In psychological research, conducting a replication of a study involves repeating the experiment using the exact same sample of participants as the original study.

In psychological research, the practice of repeating another scientist's experiment, often with new samples, to assess whether the original findings are reliable is called _____.

Match each research scenario with the concept or scientific risk it demonstrates according to the principles of replication and statistical error.

If a researcher conducts an isolated study and finds a significant effect, but multiple subsequent replication attempts with new samples fail to produce the same outcome, the original finding was likely a _____ rather than a genuine, real-world phenomenon.

Order the following scientific scenarios based on the level of confidence a researcher should have that the finding represents a genuine, real-world phenomenon (from lowest confidence to highest confidence).