Image
EAN-139780761924425   EAN-13 barcode 9780761924425
Product NameResearch Design: Qualitative, Quantitative, And Mixed Methods Approaches (2nd Edition)
CategoryBook / Magazine / Publication
Amazon.comA Buy on Amazon ~ 0761924426
SKUXX-046-62-8937708
Price New10.37 US Dollars    (curriencies)
Price Used0.01 US Dollars    (curriencies)
Width6.56 inches    (convert)
Height0.55 inches    (convert)
Length9.38 inches    (convert)
Weight14.88 ounces    (convert)
AuthorJohn W. Creswell
Page Count246
BindingPaperback
Published07/15/2002
Long Description

"Creswell's Research Design is an accessible and useful book that stimulates students through walk through experiences, use of exercises, and production of actual writing samples. It is a book that models the types of issues that best suit different approaches and allows students to understand when to use mixed methods. Furthermore, its focus on theory and paradigms is done in a way that helps students decode their meaning."

--MARTHA MONTERO-SIEBURTH, University of Massachusetts, Boston

"One of the most formidable challenges of research design is stating your purpose. Creswell's approach takes the guesswork out of the process."

--STEVE GUERRIERO, Organization & Management, Antioch New England Graduate School

The Second Edition of the bestselling Research Design: Qualitative, Quantitative, and Mixed Methods Approaches offers a unique comparison of three key approaches to inquiry. This comparison begins with preliminary consideration of knowledge claims for all three approaches, a review of the literature, and reflections about the importance of writing and ethics in scholarly inquiry. The book also addresses the key elements of the process of research: writing an introduction; stating a purpose for the study; identifying research questions and hypotheses; using theory; defining, delimiting and stating the significance of the study; and advancing methods and procedures for data collection and analysis.

Key Features:

  • Provides a clear presentation of how to implement a mixed methods design in your proposal or plan as well as show how to implement qualitative and quantitative approaches
  • Presents the ethical issues that may arise in quantitative, qualitative and mixed methods studies
  • Offers extensive writing tips to help get your research plan started in the right direction
  • Contains the latest developments in qualitative inquiry-including advocacy, participatory, and emancipatory approaches

This book is ideal for readers who seek assistance in designing a full research study or planning a proposal for a scholarly journal article, dissertation or thesis. The book is an invaluable reference on the basics of research design as well as an effective text for graduate courses in Research Methods, Research Design, and related topics. The book serves a broad audience of social and human scientists in fields of marketing, management, criminal justice, psychology, sociology, K-12 education, higher and post-secondary education, nursing, health sciences, urban studies, and family research.

(20080208)
Similar Items9780761926085: Qualitative Research Design: An Interactive Approach
9780205484751: Research Methods: A Process Of Inquiry (6th Edition)
9780761901440: Qualitative Inquiry And Research Design: Choosing Among Five Traditions
9780761926917: Qualitative Inquiry And Research Design: Choosing Among Five Traditions
9780072887648: Research Design And Methods A Process Approach, Edition: 6
9781884585623: Proposing Empirical Research: A Guide To The Fundamentals
9780810847385: Technology Law, What Every Business (And Business-Minded Person) Needs To Know
9780803913950: Qualitative Evaluation Methods
9780205132669: Educational Research: Planning, Conducting, And Evaluating Quantitative And Qualitative Research (2nd Edition)
9780761970019: Educational Research: Planning, Conducting, And Evaluating Quantitative And Qualitative Research (2nd Edition)
View 66 more similar items
Created11-19-2012 10:08:55pm
Modified08-18-2017 5:05:15pm
MD5a63671c66d9afdf6f2aa9dd3233e360f
SHA256963943045edb0152365f4c5ffcb56317c146da83feb121b5fc631aae03e81028
Search Googleby EAN or by Title
Query Time0.0070000

The interleave symbology stores digits in 2 sets of 5 stripes alternating black and white. Each set encodes a digit and these digits are interleaved together. One digit is made from the black stripes and one from the white stripes. Thus the name... Interleave 2 of 5.

Interleave 2 of 5 barcode

Each stripe in the symbol is either black or white and each of those can be narrow or wide. A wide stripe is 2 or 3 times as thick as a narrow stripe. This ratio must be consistant throughout the symbol. This means if your wide stripes start out 2 times as wide as a narrow, they must always be 2 times as wide throughout the entire symbol. You can't have some wide stripes 2 times and others 3 times as wide as a narrow stripe.

Each wide stripe has a value based on its position. The sum of these values determines which digit is represented. Every number is made up of 2 wide and 3 narrow stripes so the digit zero has a mnemonic value of 11 (eleven). This seems odd until you look at the chart below. You will see that to have a value of zero would otherwise require a single wide stripe and this would be a bigger problem than switching a mnemonic value of 11 into the digit 0 (zero).

Weight 1 2 4 7 0 Mnemonic
Digit black or white width (using weight)
0 n n W W n 4+7 (force 0)
1 W n n n W 1+0
2 n W n n W 2+0
3 W W n n n 1+2
4 n n W n W 4+0
5 W n W n n 1+4
6 n W W n n 2+4
7 n n n W W 7+0
8 W n n W n 1+7
9 n W n W n 2+7

Interleave 2 of 5 can only encode even numbers of digits. In many cases, the last digit is used as the check digit and this is calculated in the same way that UPC or EAN check digits are calculated. Often, this final digit is not displayed under the barcode because it is not part of the original number. In these case where the check digit is part of the encoded number, there are an ODD number of usable digits plus the check digit. When a check digit is not used, all of the digits are significant. There is nothing in the barcode to identify if the last digit is being used as a check digit or not. You must know this based on your application. In the event you need to encode an odd number of digits without the check digit (or an even number plus the check digit) a leading zero is added to the number to cause the end result to be an even number of digits total. The barcode also starts with a start marker made up of 4 narrow lines (black white black white) and stop mark is always located at the end also which is one wide stripe and two narrow stripes (black white black).

In our example image below, the start and stop marks are identified in yellow. The digits pairs are identified by the blue and green stripes. We are using a check digit in our example and although it doesn't show in the actual barcode (shown above), we have marked it in red in the sample below so you can see where it is being calculated in. For the example, the check digit works out to be the number 5.

Interleave 2 of 5 is prone to have partial scans. If the scanner is allowed to slip off the top or bottom of the barcode, trailing digits could be missed and the scanner could think that it has done its job. There are a couple solutions for this problem.

  1. Use a check digit as we have done in our examples. The application that makes use of the scanned numbers would also calculate the check digit and if it doesn't match what is expected the entire number is discarded. Using our example 1, 2, 3 ... 8, 9 give us a check digit of 5. So if only the first 5 digits scan properly, the program would use 1, 2, 3 and 4 to calculate a check digit which should be 8. Because the 5th digit of our example is 5 not 8 we know we didn't get the entire number so we discard it all.
  2. You could always use a fixed number of digits and left pad with zero. Then you application could check the length of the entire number including leading zeros and if it isn't what you are expecting, again you discard the entire number.
  3. Lastly would be to use guide bars on the top and bottom of the barcode. The guide bars must touch the top and bottom of each stripe and run straight accross in the scanning direction. These bars must also be at least 3 times wider than a narrow bar to make sure they aren't mistaken for an actual bar. If the scanner slips off the top or bottom of the symbol, these bars prevent a valid scan. There is an example shown below.

If you are interested in creating your own free Interleave 2 of 5 barcodes, you can visit our barcode page and make them and save them for your use.

Close

Search

Close

Share

Close

Dialog