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 25 February 1997               IGDATA.TXT

These data were used in my early work on Interest Groups (AJPS, 1981;
Psychometrika, 1984; APSR, 1985; Psychometrika, 1990).  They were
compiled by myself and Steve Daniels at the University of Oregon and
Carnegie-Mellon University 1978-81 from publications by the Interest
Groups.

In addition to this text file there are 3 data files:  IGDATA.DAT which
contains the Interest Group ratings; INTGRP.DAT which is a file containing
the abbreviations for the Interest Groups; and INTSD.DAT which shows what
years a particular interest group issued data.  This information is also 
contained in the Table below.

****************************************************************************

Format for IGDATA.DAT (Interest Group ratings 1959 - 1981):

First Record (lx,I4,lx,I3,lx,I2,lx,59Il)
Subsequent Records (2x,I3,lx,I5,2x,Il,lx,I2,lx,llAl, ___I3)

In the first record are the variables:

     1. Year (1959-1981)            I4
     2. Number of Congressmen       I3  (# Senators + # Reps, the
                                         Senators are stacked on
                                         on top the Reps)
     3. Number of Interest Groups
             Issuing Ratings        I2
     4. Indicator variables for   
         the 59 Interest Groups       
         in the Dataset           59Il  = 1 if in the year;
                                        = 0 if not (see INTGRP.DAT
                                                  description below)

In the subsequent records are the variables:

     1.Counter which goes from 1
           to the number of congressmen I3
     2. ICPSR ID #                      I5  (Corrected by P&R)
     3. Party Code                      Il  = 1 if Democrat
                                            = 2 if Republican
     4. State Code (ICPSR)              I2
     5. Name                          llAl
     6. Interest Group Ratings       ___I3  = 999 if Missing

Note that the ratings for 1959 are stacked on those for 1960 etc. You
can easily extract any set of ratings you want with a simple program.

The file INTGRP.DAT gives the abbreviations used for the 59 interest
groups and gives the two digit number for the group.  The groups are
in the same order as the 59 indicators in the IGDATA.DAT file.  This
file is used to find what groups are in what year.  The format of the
file is:

                        (I2,6Al)

Attached is a table that gives the full names of the interest groups
corresponding to the abbreviations.  The file INTSD.DAT shows what
years a particular interest group issued data. The format of the file
is:

                 (3x,I2,lx,I2,lx,6Al,2x,I2)

where the variables are:

     1.  Interest group number (1 - 59)     I2
     2.  Number of years the I.G.
                Issued ratings (max=23)     I2
     3.  Abbreviation                      6Al
     4.  Vector of Years                  __I2

*************************************************************************

                   Description of Interest Groups

Abbreviation    Number  Years                RatingGroup
                Years   Issued

ACLU                3  79-81          American Civil Liberties Union
ACU                 9  71,72,74-80    American Conservative Union
ACA                23  59-81          Americans for Constitutional Action
ADA                21  60,61,63-81    Americans for Democratic Action
AFBF                3  78,79,81       American Farm Bureau Federation
AFGE                5  73-77          American Federation of Government 
                                            Employees
AFSCME              7  73,75-80       American Federation of State, County
                                            and Municipal Employees
AFT                 7  75-81          American Federation of Teachers
ASC                13  69-81          American Security Council
BFW                 3  79-81          Bread for the World
BCTD                2  79,81          Building and Construction Trades
                                            Department (AFL-CIO)
CARTER              4  77-80          Carter Support Score (CQ)
CCUS                7  75-81          Chamber of Commerce of the 
                                            United States
CCUS2               1  79             CCUS 2nd Rating 1979 Senate
CWLA                4  76-77,79-80    Child Welfare League of America
CV                  2  79,81          Christian Voice
CVVF                1  81             Christian Voters Victory Fund
SANE                6  73-78          Citizens for a Sane World
CFNFMP              4  77,79-81       Coalition for a New Foreign and 
                                            Military Policy
COPE               23  59-81          Committee on Political Education AFL-CIO
CFSCA               3  79-81          Committee for the Survival of a Free
                                            Congress: All Issues
CFSCE               2  79-80          Committee for the Survival of a Free
                                            Congress: Economic Issues
CFSCD               2  79-80          Committee for the Survival of a Free
                                            Congress: Defense Issues
CFSCS               2  79-80          Committee for the Survival of a Free
                                            Congress: Social Issues
CCAUSE              2  78,81          Common Cause
CW                  6  75-80          Congress Watch
CC                 23  59-81          Conservative Coalition (CQ)
CFA                10  71-79,81       Consumer Federation of America
IKE                 2  59-60          Eisenhower Presidential Support Score:
                                            All Issues (CQ)
PFPIKE              2  59-60          Eisenhower Presidential Support Score:
                                            Foreign Policy (CQ)
PDPIKE              2  59-60          Eisenhower Presidential Support Score:
                                            Domestic Policy (CQ)
FORD                3  74-76          Ford Presidential Support Score (CQ)
FCNL                4  77-80          Friends' Committee on National 
                                            Legislation
LBJ                 5  64-68          Johnson Presidential Support Score:
                                            All (CQ)
PFPLBJ              5  64-68          Johnson Presidential Support Score:
                                            Foreign Policy (CQ)
PDPLBJ              5  64-68          Johnson Presidential Support Score:
                                            Domestic Policy (CQ)
JFK                 3  61-63          Kennedy Presidential Support Score:
                                            All (CQ)
PFPJFK              3  61-63          Kennedy Presidential Support Score:
                                            Foreign Policy (CQ)
PDPJFK              3  61-63          Kennedy Presidential Support Score:
                                            Domestic Policy (CQ)
LFR                10  59-68          Larger Federal Role Support Score: (CQ)
LCV                10  71-77,79-81    League of Conservation Voters
LWV                10  71-75,77-81    League of Women Voters
LL                 11  61-65,67,69,   Liberty Lobby
                       73,75,77,81
LFS                 1  59             Lower Federal Spending Support Score (CQ)
NASC                4  77,79-81       National Alliance of Senior Citizens
NCSC                4  77-80          National Council of Senior Citizens
NEA                12  69-79,81       National Education Association
NFO                 8  73,75-81       National Farmers Organization
NFU                17  61-65,69-79,81 National Farmers Union
NFIB                5  77-81          National Federation of Independent
                                            Business
NTU                10  71,73-81       National Taxpayers' Union
NWPC                1  79             National Women's Political Caucus
NR                 14  61-74          New Republic
NIXON               6  69-74          Nixon Support Score (CQ)
REAGAN              1  81             Reagan Support Score (CQ)
RIPON              11  69-78,81       Ripon Society
TWR                 2  77-78          Taxation with Representation
UAW                13  69-81          United Auto Workers
UMW                 2  79,81          United Mine Workers