If you’ve spent any time on TikTok, Instagram Reels, or YouTube Shorts, you’ve probably come across the phrase “6-7” (pronounced “six-seven”). The phrase has become one of 2025’s most viral memes, but its meaning isn’t immediately clear.
The phrase “6-7” comes from the song “Doot Doot (6-7)” by Skrilla, released in early 2025. The line that sparked the trend appears in the chorus:
The way that switch brrt, I know he dyin’ (oh my, oh my God) 6-7, I just bipped right on the highway (bip, bip)
The exact meaning of “6-7” is intentionally vague. Skrilla hasn’t given a clear explanation, though some theories have emerged. Some speculate it might refer to 67th Street, possibly linked to the artist’s background or community. Others think it’s related to “10-67,” the police radio code used in some areas to notify of a death.
Despite these theories, most of the time “6-7” doesn’t hold a specific meaning. It functions more as a catchy, rhythmic phrase people repeat for humor or recognition, much like other viral slang phrases such as “skibidi” or “rizz.”
Inter-rater reliability is the degree of agreement or consistency between two or more raters evaluating the same phenomenon, behavior, or data.
In research, it plays a crucial role in ensuring that findings are objective, reproducible, and not dependent on a single observer’s judgment. Whether you’re analyzing questionnaire responses, coding interview transcripts, or assessing behavioral outcomes, strong inter-rater reliability boosts the credibility of your results.
The method to calculate inter-rater reliability depends on the type of data (e.g., nominal, ordinal, interval, or ratio) and the number of raters. The most common methods include Cohen’s kappa (for two raters), Fleiss’ kappa (for three or more raters), and the Intraclass Correlation Coefficient (for continuous data).
Example: Inter-rater reliability in qualitative researchA team of psychologists conducts qualitative research to examine workplace stress. They code open-ended interview responses to identify themes such as “workload pressure,” “lack of support,” and “burnout symptoms.”
During the thematic analysis, each researcher independently reads the transcripts and assigns codes to relevant passages. If the coders consistently label the same responses with the same themes, the study demonstrates high inter-rater reliability. This consistency ensures that the findings reflect real patterns in the participants’ experiences, rather than subjective interpretations or biases from individual researchers. This helps reduce observer bias.
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Example: Countries that start with Z in a sentenceZambia and Zimbabwe are neighboring countries in southern Africa, known for their stunning landscapes and the famous Victoria Falls.
English only has one country that starts with W, which is Wales. There are also a few territories that start with “W,” such as “Western Sahara” and “Wallis and Futuna.”
Example: Countries that start with V in a sentenceVanuatu is known for its stunning islands, Vietnam for its delicious cuisine, and Venezuela for its breathtaking natural landscapes.
Example: Countries that start with U in a sentenceThe United Arab Emirates is famous for its modern skyscrapers, the United Kingdom for its historical landmarks, and Uruguay for its beautiful beaches and vibrant culture.
Example: Countries that start with T in a sentenceThailand, Turkey, and Tanzania are known for their rich cultural heritage, stunning landscapes, and diverse wildlife.
Example: Countries that start with S in a sentenceSweden, Slovakia, and Slovenia all have rich cultural histories and beautiful landscapes that attract travelers from around the world.
