Identifying Independent and Dependent Variables Activity 1 A

Identifying Independent and Dependent Variables

Activity #1

A developmental psychologist is interested in how the activity level of four-year-olds is affected by viewing a 30-minute video of SpongeBob SquarePants or a 30-minute video of Sid the science kid.

IV

DV:

Hypothesis:

A psychiatrist wants to test the impact of a new drug designed to increase the ability of teenagers with ADHD to take accurate notes in class.

IV:

DV:

Hypothesis:

A biopsychologist wants to know whether exposure to testosterone in adult female rats increases their aggressive behavior.

IV:

DV:

Hypothesis:

An industrial/organizational psychologist believes that cooling the temperature of a room may have an impact on the productivity of workers on an assembly line.

IV:

DV:

Hypothesis:

Solution

1.

IV: viewing a 30-minute video of SpongeBob SquarePants or a 30-minute video of Sid the science kid.

DV: activity level of four-year-olds

HYpothesis: The activity level of four-year-old kids is higher when viewing a 30-minute video of Sid the science kid.

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

2.

IV: taking a new drug

DV: ability of teenagers with ADHD to take accurate notes in class.

HYpothesis: The ability of teenagers with ADHD to take accurate notes in class increases when taking the new drug.

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

3.

IV: exposure to testosterone in adult female rats

DV: aggressive behavior in adult female rats

HYpothesis: Exposure to testosterone in adult female rats increases their aggressive behavior.

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

4.

IV: temperature of a room

DV: productivity of workers on an assembly line

Hypothesis: Cooling the temperature of a room increases the productivity of workers on an assembly line.