Observation of mobile phone use

The type of experimental design used in the study described in the document was (a)   .

• Independent groups
• Repeated measures
• Matched pairs
• Correlational study

The independent variable (IV) in the experiment was (a)   .

• Duration of time on phone
• Location of the participant (cantee
• Type of phone used
• Time of day

The dependent variable (DV) in the study was (a)   .

• Battery life of the phone
• Duration of time on phone
• Number of phone calls received
• WiFi connectivity

Which of the following is a disadvantage of the experimental design used?

• Can only observe them in one condition

• Increases ecological validity

• Simple, more convenient design

• Less influence from variables

Match the following hypotheses with their descriptions:

• Hypothesis linking usage to battery life.

• Mobile phone usage decreases as battery life decreases.

• Hypothesis about consistent usage across environments.

• There will be no difference in mobile phone usage in different environments.

• Hypothesis about location-based usage differences.

• More phone usage occurs at the end of the day.

• Hypothesis about time-based usage patterns.

• There will be an increase in mobile phone usage in the canteen compared to the library.

The sampling method used in the study was (a)   .

What is a potential drawback of the sampling method used in the referenced study?

• It may not represent the entire population accurately.

• It is too time-consuming and expensive.

• It relies on voluntary participation only.

• It uses outdated data collection techniques.

Which factor enhances the risk of bias in the convenience sampling method used in the study?

• Selection is not random and may not represent the entire population.

• It requires too much time to implement.

• It involves high costs.

• It depends on complex statistical models.

How was the issue of confidentiality addressed in the study?

• By collecting detailed personal information.

• By not collecting participant information to retain anonymity.

• By sharing participant data with all researchers.

• By public disclosure of participant identities.

Which method was implemented to enhance the accuracy of data in the research study?

• Utilizing advanced statistical analysis tools.

• Standardizing data collection procedures.

• Maintaining manual records only.

• Ignoring data accuracy concerns.