Probable? Maybe. Making a difference is always possible.
Oxford English Dictionary defines possible as capable of being (may/can exist, be done, or happen). It defines probable as worthy of acceptance, believable.
Ray Bradbury : “I define science fiction as the art of the possible. Fantasy is the art of the impossible.”
Somebody asked me what was the difference between science fiction and fantasy. Certainly the simple approach is that science fiction deals with the possible (if you can think it, it can happen). Fantasy deals with monsters, fairies, goblins, and other mythical creatures, i.e., majic and majical creatures.
(Disclaimer: I personally believe in majic; much of fantasy deals with magic.) I love the Arthurian legend (it could be fantasy; it has endured for so long it is believable). It is full of majic. I especially like the Marion Zimmer Bradley book, The Mists of Avalon . (I find the feminist perspective refreshing.)
Is fantasy always impossible as Bradbury suggests, or is it just improbable? (Do the rules of physics apply?) This takes me back to Bradbury’s quote and evaluation after the minor digression. Bradbury also says that “Science fiction, again, is the history of ideas, and they’re always ideas that work themselves out and become real and happen in the world.” Not unlike evaluation. Evaluation works itself out and becomes real and happens. Usually.
Evaluation and the possible.
Often, I am invited to be the evaluator of record after the program has started. I sigh. Then I have a lot of work to do. I must teach folks that evaluation is not an “add on” activity. I must also teach the folks how to identify the difference the program made. Then there is the issue of outputs (activities, participants) vs. outcomes (learning, behavior, conditions). Many principal investigators want to count differences pre-post.
Does the “how many” provide a picture of what difference the program made? If you start with no or few participants and you end with many participants, have you made a difference? Yes, it is possible to count. Counts often meet reporting requirements. They are possible. So is documenting the change in knowledge, behavior, and conditions. It takes more work and more money. It is possible. Will you get to world peace? Probably not. Even if you can think it. World peace may be probable; it may not be possible (at least in my lifetime).
molly.