The Elements of Scientific Psychology

By Knight Dunlap | Go to book overview

CHAPTER VII
SOME SENSORY MEASUREMENTS

£1. Measurements and tests.

It is neither feasible nor desirable to introduce here a detailed account of the methods and instruments required for accurate measurement of sensory capacity. Such an account must necessarily be both technical and voluminous, and is given properly in a laboratory course: the technique of accurate measurement can be acquired only by a laborious process under competent supervision. There are many pitfalls for the unwary, and an extensive range of cautions must be observed; so that it is impossible for the untrained worker to obtain reliable results, except for clinical purposes where comparatively rough measurements will suffice. It is possible, for example, to diagnose a grave defect of vision or of audition by the rough methods commonly employed in medical practice; but the lesser defects, even some of those which may have serious practical consequences, and the differences in sensitivity of "normal" individuals, can be measured only by the refined methods of the psychological laboratory.

The methods and technique of accurate measurement include not only a precise instrumental technique, and exact methods of presenting stimuli with proper gradations and order, but include also the proper time arrangement; the use of carefully planned warning signals; and various detailed provisions to secure uniformity of attention, lack of bias, and absence of emotional disturbance on the part of the reactor.

In certain cases, it is important and possible to make determinations in which small units of measurement are not demanded, and in which the reactor is not required to determine just perceptible and just imperceptible values. Such determinations are called tests; and although in each case certain details of technique

-131-

Notes for this page

Add a new note
If you are trying to select text to create highlights or citations, remember that you must now click or tap on the first word, and then click or tap on the last word.
One moment ...
Project items

Items saved from this book

This book has been saved
Highlights (0)
Some of your highlights are legacy items.

Highlights saved before July 30, 2012 will not be displayed on their respective source pages.

You can easily re-create the highlights by opening the book page or article, selecting the text, and clicking “Highlight.”

Citations (0)
Some of your citations are legacy items.

Any citation created before July 30, 2012 will labeled as a “Cited page.” New citations will be saved as cited passages, pages or articles.

We also added the ability to view new citations from your projects or the book or article where you created them.

Notes (0)
Bookmarks (0)

You have no saved items from this book

Project items include:
  • Saved book/article
  • Highlights
  • Quotes/citations
  • Notes
  • Bookmarks
Notes
Cite this page

Cited page

Style
Citations are available only to our active members.
Sign up now to cite pages or passages in MLA, APA and Chicago citation styles.

(Einhorn, 1992, p. 25)

(Einhorn 25)

1

1. Lois J. Einhorn, Abraham Lincoln, the Orator: Penetrating the Lincoln Legend (Westport, CT: Greenwood Press, 1992), 25, http://www.questia.com/read/27419298.

Cited page

Bookmark this page
The Elements of Scientific Psychology
Settings

Settings

Typeface
Text size Smaller Larger
Search within

Search within this book

Look up

Look up a word

  • Dictionary
  • Thesaurus
Please submit a word or phrase above.
Print this page

Print this page

Why can't I print more than one page at a time?

Full screen
/ 370

matching results for page

Cited passage

Style
Citations are available only to our active members.
Sign up now to cite pages or passages in MLA, APA and Chicago citation styles.

"Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences." (Einhorn, 1992, p. 25).

"Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences." (Einhorn 25)

"Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences."1

1. Lois J. Einhorn, Abraham Lincoln, the Orator: Penetrating the Lincoln Legend (Westport, CT: Greenwood Press, 1992), 25, http://www.questia.com/read/27419298.

Cited passage

Welcome to the new Questia Reader

The Questia Reader has been updated to provide you with an even better online reading experience.  It is now 100% Responsive, which means you can read our books and articles on any sized device you wish.  All of your favorite tools like notes, highlights, and citations are still here, but the way you select text has been updated to be easier to use, especially on touchscreen devices.  Here's how:

1. Click or tap the first word you want to select.
2. Click or tap the last word you want to select.

OK, got it!

Thanks for trying Questia!

Please continue trying out our research tools, but please note, full functionality is available only to our active members.

Your work will be lost once you leave this Web page.

For full access in an ad-free environment, sign up now for a FREE, 1-day trial.

Already a member? Log in now.