Final answer:
Parodi & Guerrero found that Spanish speakers in Southern CA had negative attitudes towards non-standard rural Mexican Spanish words.
Step-by-step explanation:
Parodi & Guerrero conducted a study on attitudes among Latin American Varieties of Spanish (LAVS) speakers about certain non-standard words/pronunciations in Mexico. They examined words like 'muncho' for 'mucho' and found that these rural Mexican Spanish uses were associated with hickishness.
When they asked Spanish speakers in Southern CA about these words, they found that the speakers had similar negative attitudes towards them.
The research by Parodi & Guerrero focused on attitudes towards certain non-standard words and pronunciations in Mexican Spanish, comparing them to vernaculars in other languages and investigating how such speech may impact perceptions of ethnicity and class amongst LAVS speakers in Southern California.
Unfortunately, the specific findings of Parodi & Guerrero regarding Southern Californian Spanish speakers' attitudes towards rural Mexican Spanish uses like 'muncho' for 'mucho' are not provided in the provided reference material, making it impossible to offer a detailed answer.