Question

design an experiment to test the following hypotheses...

1. the more time people spend using social media, the less able they are to express themselves in conversation.

control group:
experimental group(s):
independent variable:
dependent variable:

1. drinking energy drinks makes people more aggressive.

control group:
experimental group(s):
independent variable:
dependent variable:

1. taking a nap in the afternoon makes people more relaxed and less irritable for the rest of the day.

control group:
experimental group(s):
independent variable:
dependent variable:

1. spending time with a cat or dog decreases the amount of stress someone is feeling and allows them to perform better on tests.

control group:
experimental group(s):
independent variable:
dependent variable:

1. eating breakfast in the morning increases the ability to learn in school.

control group:
experimental group(s):
independent variable:
dependent variable:

Explanation:

Each sub-question requires identifying experimental components based on the hypothesis. Control groups lack the independent variable, experimental groups receive it; independent variables are manipulated, dependent variables are measured outcomes.

Answer:

1. Control Group: People with usual social media use

Experimental Group(s): People with increased social media use
Independent Variable: Time spent on social media
Dependent Variable: Ability to express in conversation

1. Control Group: People who drink non-energy drinks (e.g., water)

Experimental Group(s): People who drink energy drinks
Independent Variable: Consumption of energy drinks
Dependent Variable: Aggressiveness level

1. Control Group: People who do not take an afternoon nap

Experimental Group(s): People who take an afternoon nap
Independent Variable: Afternoon nap taking
Dependent Variable: Relaxation and irritability levels

1. Control Group: People who spend time without a cat/dog

Experimental Group(s): People who spend time with a cat/dog
Independent Variable: Interaction with cat/dog
Dependent Variable: Stress level and test performance

1. Control Group: People who skip morning breakfast

Experimental Group(s): People who eat morning breakfast
Independent Variable: Morning breakfast consumption
Dependent Variable: Learning ability in school