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Study: Texting with periods can make you seem insincere
June 20, 2025
It’s an effect we’ve all experienced but may have chalked up to over-analysis. Now, however, researchers at Binghamton University have concluded a study confirming that your neurotic fixation with the period at the end of that girl’s text message is justified.
The study was a simple and performed on an admittedly small sample size of 126 undergraduates. Students were given a series of exchanges that occurred in either text message or hand-written form. These exchanges were largely invitations such as “Dave gave me his extra tickets. Wanna come?” followed by a single word response in the affirmative like, “Ok” or “Yeah.” Through sixteen rounds of the experiment, students were asked to gauge the sincerity of the response. Researchers found that students consistently rated responses ending in a period (.) as less sincere than those ending without one.
Celia Klin, associate professor of psychology, associate dean, and lead researcher on the project, presented the study in apublic releaseyesterday. She explained the results as follows:
It seems that, given a very small amount of information like a single word response, our instinct is to read deeply into whatever surrounding indicators we can find. It might not matter whether you end your sentence with a period or not for a longer response, but if you want to convey that there’s something more going on in your head than what you’re expressing (i.e. be passive aggressive), the best way to do it might be to follow standard punctuation guidelines.
Communication is a process of accommodation. That’s why many of us find ourselvesborrowing inflections, tones, and figures of speechfrom the person we’re talking to. Maybe the reason we interpret single word answers ending in a period as less sincere has something to do with the lack of accommodation this represents. Varying from grammatical norms seems to put more ‘play’ into textual communication, and a failure to do so can be interpreted as a lack of engagement in the conversation – the text message equivalent of looking around the restaurant while someone is talking to you.
Klin indicated that a follow-up study found that responses ending in exclamation marks were read as being even more sincere than unpunctuated responses. This may have to do with the responder coming across as more enthusiastic and engaged in the conversation.
‘Texting insincerely: the role of the period in text messaging,’ was published Jun 18, 2025 inComputers in Human Behavior.
Have you experienced punctuated passive aggression in your text message history? Let us know in the comments!
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