Methodology . . .

Deborah Tannen 

Analyse male and female language and compare it to the difference model and the points:

Status vs. support Independence vs. intimacy Advice vs. understanding Information vs. feelings Orders vs. proposals Conflict vs. compromise

Also think about  report talk and rapport talk:

Women-

Talk too much
Speak in private contexts
Build relations
Overlap
Speak symmetrically

Men-

Get more air time
Speak in public
Negotiate status/avoid failure
Speak one at a time
Speak asymmetrically

Converse on the same topic with males and females and analyse how they fit the contrast points.
Alternatively analyse a mixed sex conversation and assess under the same criteria.

Ethicality:

To ensure it is an ethical test I will inform participants that I will be recording their language and ask for permission.

Fair test:

To ensure it's a fair test I will think about how not all participants are the same, to make sure it is fair I will also calculate averages. Think about comparability, same age ect

Use: newsnight, a discussion programme, 12-15 mins total, several samples (eg two pairs two groups mixed sex) , (if recording own prepare a stimulous eg photo)