Feedback
You are giving feedback when you respond to the source, intentionally or unintentionally. Feedback is composed of messages the receiver sends back to the source. Verbal or nonverbal, all these feedback signals allow the source to see how well, how accurately (or how poorly and inaccurately) the message was received. Feedback also allows the receiver or audience to ask for clarification, to agree or disagree, or to indicate that the source could make the message more interesting. As the amount of feedback increases, the accuracy of communication also increases (Leavitt & Mueller, 1951).
For example, suppose you are a sales manager participating in a conference call with four sales reps. As the source, you want to tell the reps to take advantage of the fact that it is World Series season to close sales on baseball-related sports gear. You state your message, but you hear no replies from your listeners. You might assume that this means they understood and agreed with you, but later in the month, you might be disappointed to find that very few sales were made. If you followed up your message with a request for feedback (“Does this make sense? Do any of you have any questions?”), you might have an opportunity to clarify your message, and to find out whether any of the sales reps believed your suggestion would not work with their customers.
Environment
“The environment is the atmosphere, physical and psychological, where you send and receive messages.” (McLean, 2005) The environment can include the tables, chairs, lighting, and sound equipment that are in the room. The room itself is an example of the environment. The environment can also include factors like formal dress, which may indicate whether a discussion is open and caring or more professional and formal. People may be more likely to have an intimate conversation when they are physically close to each other and less likely when they can only see each other from across the room. In that case, they may text each other, itself an intimate form of communication. The choice to text is influenced by the environment. As a speaker, your environment will impact and play a role in your speech. It’s always a good idea to go check out where you’ll be speaking before the day of the actual presentation.
Context
“The context of the communication interaction involves the setting, scene, and expectations of the individuals involved.” (McLean, 2005) A professional communication context may involve business suits (environmental cues) that directly or indirectly influence expectations of language and behavior among the participants. A presentation or discussion does not take place as an isolated event. When you came to class, you came from somewhere. So did the person seated next to you, as did the instructor. The degree to which the environment is formal or informal depends on the contextual expectations for communication held by the participants. The person sitting next to you may be used to informal communication with instructors, but this particular instructor may be used to verbal and nonverbal displays of respect in the academic environment. You may be used to formal interactions with instructors as well, and find your classmate’s question of “Hey Teacher, do we have homework today?” as rude and inconsiderate when they see it as normal. The nonverbal response from the instructor will certainly give you a clue about how they perceive the interaction, both the word choices and how they were said.
Context is all about what people expect from each other, and we often create those expectations out of environmental cues. Traditional gatherings like weddings or quinceañeras are often formal events. There is a time for quiet social greetings, a time for silence as the bride walks down the aisle, or the father may have the first dance with his daughter as she is transformed from a girl to womanhood in the eyes of her community. In either celebration there may come a time for rambunctious celebration and dancing. You may be called upon to give a toast, and the wedding or quinceañera context will influence your presentation, timing, and effectiveness. In a business meeting, who speaks first? That probably has some relation to the position and role each person has outside the meeting. Context plays a very important role in communication, particularly across cultures.
Interference

Interference, also called noise, can come from any source. “Interference is anything that blocks or changes the source’s intended meaning of the message.”(McLean, 2005) For example, if you drove a car to work or school, chances are you were surrounded by noise. Car horns, billboards, or perhaps the radio in your car, a conversation with a passenger, or an email or phone call interrupted your thoughts. Psychological noise is what happens when your thoughts occupy your attention while you are hearing, or reading, a message. Imagine that it is 4:45 p.m. and your boss, who is at a meeting in another city, e-mails you asking for last month’s sales figures, an analysis of current sales projections, and the sales figures from the same month for the past five years. You may open the e-mail, start to read, and think, “Great—no problem—I have those figures and that analysis right here in my computer.” You fire off a reply with last month’s sales figures and the current projections attached. Then, at five o’clock, you turn off your computer and go home.
The next morning, your boss calls on the phone to tell you he was inconvenienced because you neglected to include the sales figures from the previous years. What was the problem? Interference: by thinking about how you wanted to respond to your boss’s message, you prevented yourself from reading attentively enough to understand the whole message. Interference can come from other sources, too. Perhaps you are hungry, and your attention to your current situation interferes with your ability to listen. Maybe the office is hot and stuffy. If you were a member of an audience listening to an executive speech, how could this impact your ability to listen and participate? Noise interferes with normal encoding and decoding of the message carried by the channel between source and receiver. Not all noise is bad, but noise interferes with the communication process. For example, your cell phone ringtone may be a welcome noise to you, but it may interrupt the communication process in class and bother your classmates.
Leavitt, H., & Mueller, R. (1951). Some effects of feedback on communication. Human Relations, 4, 401–410.
McLean, S. (2005). The basics of interpersonal communication (p. 10). Boston, MA: Allyn & Bacon.
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