Social Relations ModelDesigns

David A. Kenny

June 17, 2013

Round Robin Design

• The prototypical SRM design.

• Persons in groups.

• Each person is both actor and partner with every other member of the group.

Round Robin Design

1 2 3 4 5 61 - x x x x x

2 x - x x x x

3 x x - x x x

4 x x x - x x

5 x x x x - x

6 x x x x x -

Variants• Indistinguishable members

–teams or groups

• Distinguishable members–families or work teams with roles

Block Design• People are divided into two sets.

• Person rate or interact with all of the members of the other set.

• Can viewed as round-robin design with specially chosen missing data.

Block Design

1 2 3 4 5 61 - - - x x x

2 - - - x x x

3 - - - x x x

4 y y y - - -

5 y y y - - -

6 y y y - - -

Symmetric Block Design:Indistinguishable Members

1 2 3 4 5 61 - - - x x x

2 - - - x x x

3 - - - x x x

4 x x x - - -

5 x x x - - -

6 x x x - - -

Asymmetric Block Design: Distinguishable Members

1 2 3 4 5 61 - - - x x x

2 - - - x x x

3 - - - x x x

4 y y y - - -

5 y y y - - -

6 y y y - - -

Asymmetric Block Design Illustration:

Speed Dating• Two sets of actor and partner variances

– One for the men

– One for the women

• Reciprocities

– Actor-partner correlation for men and women

– One dyadic reciprocity

Half Block Design: Nonreciprocal Design

1 2 3 4 5 61 - - - x x x

2 - - - x x x

3 - - - x x x

4 - - - - - -

5 - - - - - -

6 - - - - - -

Block Round Robin Design

1 2 3 4 5 61 - y y x x x

2 y - y x x x

3 y y - x x x

4 w w w - z z

5 w w w z - z

6 w w w z z -

Haphazard Design

• A design that is neither block or round robin, but most actors have multiple partners and most partners have multiple actors.

Other WebinarsEstimation

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