Word Works
Learning through writing
at Boise State University

Number 126 April 1, 2004
Published by the Boise State Writing Center


The Power of Prepositional Phrases

 

                            We were talking about the space between us all
                        And the people who hide themselves
behind a wall of
illusion.

                                                                                    -George Harrison
 

How about prepositional phrases? You are probably remembering instances (likely, fairly often) of lengthy sentences, developed, almost yeoman-like, with enough prepositions to fill a handbook:

                We drove along the endless highway towards the setting sun in a red Convertible with a    
                million dollars in the truck for our vacation in Mexico.

Students’ ability to proliferate the prepositional phrase is astonishing. And more than a little impressive. Or so says David Bloomer, psychologist from MIT. In a recent article, Bloomer claims that he has been able to deduce, fairly accurately, a student’s IQ from the number of prepositional phrases she uses in an essay. The more abundant the phrases, the higher the intelligence quotient.

Sort of.

Bloomer’s formula is not based simply on the number of phrases, but also the placement of them. Adding a slew of phrases to the end of the sentence, as in my example above, is not as impressive as when a student will vary placement: using prepositional phrases at the beginning, in the middle, and at the end of sentences in an essay. That flexibility with phrases, says Bloomer, “is a surprisingly acute measurement of a person’s intellectual capacity overall” (73). The connection between the use of words like “of” and mental prowess is a new argument, a subtle teasing out of linguistic clues in order to glean a better picture of the person behind them.

Bloomer studied writing examples from over 2,500 high school students in the Boston area, comparing their writing with the scores from the Wechsler exam for intelligence.  In the writing prompts, students were asked to write a response to an excerpt from an article by George Plimpton. Bloomer broke down the writing samples into T-units—a T-unit was originally defined by Kellogg Hunt in 1965 as the “minimally terminable unit” of a sentence (or, in Ed Varva’s words, “essentially a main clause [. . . ] including all subordinate clauses and other constructions that go with it”). Once Bloomer had the T-units, he then counted the number of prepositional phrases in each writing sample, calculated the ratio between phrases and T-units, and then catalogued the positions of the phrases: introductory, interruptive, or conclusive.

The students who scored highest on the IQ test had the highest T-unit to prepositional phrase ratio, and also had the greatest variability in the positioning of their phrases. The upper five percent of these students accounted for 43% of the interruptive phrases. Those who scored at the median or below on the IQ exam tended to use prepositional phrases mostly in the conclusive position, and had fewer prepositional phrases in their writing overall. “Obviously,” argues Bloomer, “we can now begin to measure intelligence through rhetorical acuity, and presume a higher correlation between syntax and mental ability than previously” (81). Bloomer’s research also indicated that the variety of T-unit length was greatest with this group of students.

Not everyone, though, is following Bloomer. Mark Newman, of Stanford, in a sharp review of Bloomer’s work, says the study “should be relegated to the sandbox on the linguistic playground” (22). Bloomer fails to convince that any correlation exists, and fails to account for the idea that prepositional usage is an imitative activity as much as an indicative one. “If a writer,” says Newman, “has been exposed to the linguistic habit of varying prepositional usage, then the writer will be more likely to produce those variations in her own writing. The prompt is cultural, not intellectual” (25).

There is also the problem of the writing prompt itself, an excerpt that has few prepositional phrases, and, should students be imitating the style of Plimpton’s writing in their own replies, there would be little incentive to make the stylistic choices that would lead to an abundance of prepositional phrases. Other studies (Clapton 1984; Heath 1983; Emerson, Lake, and Palmer, 1990) have shown that students often “throw back” the language used on tests when forming their answers. Bloomer fails to account for that in his study.

The fallout from this argument, for those of us interested in writing in our classrooms, is not necessarily minor. Certainly, teachers have long considered more complex sentence structures as a marker of student performance, but to fasten those sentences so firmly to intellectual capability could be problematic. Instead of working with students to expand their syntactical repertoire, teachers could, with Bloomer’s lead, attribute the lack of complexity to mental deficiency.

Bloomer does argue against that move, acknowledging towards the end of his piece that the study has a limited scope, especially given the idea of multiple intelligences put forth by Howard Gardner and others. Also, in a wonderful turn at the end of the piece, Bloomer cites his own article as an example of a work that would suggest a lower IQ if read through the lens of his study (he utilizes fewer prepositional phrases per T-units than many of the students studied, and he has a penchant for introductory positioning). In short, Bloomer’s proposition of prepositions, by most accounts, fails to convince.

But, the idea of varying prepositional phrases is a good one. Students should be given incentive for learning when and how they can include information in their writing, and should consider how to vary the positioning of prepositional phrases, and to match up their use of them with the conventions of whatever writing situation they find themselves in. They might not be heading to Mexico in a red convertible with a million dollars in the trunk, but they can, in many ways, head towards better writing with a supply of phrases that will serve their sentences well.

So, by all means, consider how your students use prepositional phrases. Count them. Compare them. Encourage them. Before you do, though, be sure to review the opening sentences of this article. For, as much as I am interested in the placement of prepositional phrases in sentences, I’m also intrigued by the first letters of sequential words, and what they can tell us about writing, too.


Works Cited

Bloomer, David. “’Before, On, After’: Prepositional Phrases as a Marker of the Intelligence Quotient.”
    Studies in Psychology and Linguistics
84  (April 2003): 61-100.

Clapton, Erich. “Following Orders: Student Answers Mimic Teacher Language.”  Academic Inquiry
   
44 (April 1984): 23-47.

Emerson, Ralph, Ina Lake, and Robert Palmer. “The Machine Responds: A Longitudinal Study of
    Student Replies to Short-Answer Questions Across Disciplines, with  Both Pre- and Post-Test
    Variables.” TMT Journal 56 (April 1990): 2-5.

Heath, Shirley Brice. ways with words: language, life, and work in communities and classroom.  
    Cambridge: Cambridge UP, 1983.

Newman, Mark. “’After’ the Fact: A Rebuttal.” Linguistics and Us: A Contemporary Journal. 002
    (April 2004): 20, 22, 25, and 33.

Varva, Ed. “Definitions of the ‘T-Unit.’” 9 June 1999. <http://nweb.pct.edu/homepage/staff/
    evavra/ED498/Essay009_Def_TUnit.htm.>

 __________________________________________________________________________________
MM

If you have comments or questions on this piece or others, or suggestions for future topics, please call or email: 426-3585 or michaelmattison@boisestate.edu
 

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