Flawed Analogy in the Moon-Behavior Illusory Correlation

Scientific Evidence Against the Moon-Behavior Correlation

The widespread belief that psychiatric admissions and crimes increase during a full moon, despite scientific evidence showing no such statistical relationship, is an example of which of the following concepts?

According to scientific research, the popular belief that psychiatric admissions and criminal activity increase during a full moon persists largely because people are more likely to notice and remember events that confirm the expectation while overlooking events that do not, even though no real statistical relationship exists between lunar phases and human behavior.

A hospital administrator is investigating why many staff members believe the 'Full Moon Myth'—the idea that psychiatric admissions increase during a full moon. Match each scenario with the psychological term it illustrates based on the research methods used to evaluate such claims.

A healthcare worker believes in the 'Full Moon Myth.' Sequence the following events to illustrate how attentional bias leads to the maintenance of an illusory correlation, starting from the cognitive expectation and ending with the reinforcement of the myth.

You are designing a research-based intervention to help psychiatric hospital staff overcome the belief that admissions increase during a full moon. To directly counter the attentional bias that leads people to perceive a relationship where none exists, which of the following data-collection protocols should you propose the staff implement for a one-month trial?

Scientific research has consistently found a significant statistical relationship between the phases of the moon and human behavior, such as crimes or psychiatric admissions.

When evaluating the scientific validity of the 'Full Moon Myth'—the belief that crimes or psychiatric admissions increase during a full moon—a researcher finds that large-scale statistical data consistently shows a relationship of $r = 0$. Based on this lack of empirical evidence, the researcher concludes that the persistent public belief in this phenomenon is an example of a(n) _____.

To understand why the 'Full Moon Myth' persists despite scientific evidence, match each aspect of this phenomenon with its corresponding psychological or statistical description.

A psychology student wants to scientifically evaluate the 'Full Moon Myth' in their local community. Arrange the steps of their research study in the correct methodological order, from initial design to drawing a final conclusion based on empirical evidence.

A clinical researcher collects data over several months to evaluate the 'Full Moon Myth' and organizes the observations into a $2 \\times 2$ contingency table with the variables Moon Phase (Full Moon vs. No Full Moon) and Psychiatric Admissions (Admission vs. No Admission). The counts are as follows:

• Full Moon and Admission: 15
• Full Moon and No Admission: 135
• No Full Moon and Admission: 85
• No Full Moon and No Admission: 765

An analysis of these data reveals that the conditional probability of a psychiatric admission is exactly _____% under both moon-phase conditions, proving that there is no statistical relationship and that the belief is an illusory correlation.