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In a study designed to identify factors involved in helping…
In a study designed to identify factors involved in helping behavior, a man on a crowded bus clutches his chest and falls to the floor. In one of the conditions of the study the man is clean shaven and wearing a suit; in the other condition he has a scraggly beard and is wearing a dirty t-shirt and jeans. The amount of time it takes for someone to help the man is recorded. In this example the dependent variable is
Group of answer choices
the participants in the study.
the appearance of the man.
how crowded the bus is.
the amount of time it takes someone to help.
In a study designed to identify factors involved in helping behavior, a man on a crowded bus clutches his chest and falls to the floor. In one of the conditions of the study the man is clean shaven and wearing a suit; in the other condition he has a scraggly beard and is wearing a dirty t-shirt and jeans. The amount of time it takes for someone to help the man is recorded. In this example the independent variable is
Group of answer choices
how crowded the bus is.
the participants in the study.
the amount of time it takes someone to help.
the appearance of the man.
Tammy decided to explore public health data to find the percentage of individuals who have contracted sexually transmitted diseases (STDs) as part of her thesis on program evaluation of educational materials available to college students on STDs. This is an example of using
Group of answer choices
qualitative data
interview data
existing data
correlational data
________________ of participants is done to obtain a representative sample, and __________ of the participants is done to improve the experimental design of the study.
Group of answer choices
Random selection; random assignment
Random assignment; random selection
Random assignment; matching
Random selection; random sampling
Dr. Monroe is interested in surveying college students at her university who are first generation college students. She contacts the registrar’s office and finds out that there are 3500 first generation college students total. She wants to include 350 of those students in her sample. She then divided the population by the sample size and gets k = 10. She then picks a random number between 1 and 10 which is 8. This determines that every 8th person in the population will be included in the sample. What type of sampling method is this?
Group of answer choices
cluster sampling.
stratified sampling
random sampling
systematic sampling
An experiment was designed to determine if gender of the interviewer and the amount of eye contact by the interviewer will influence the participant’s liking of an interviewer. Thus participants were randomly assigned to groups that had either a male or female interviewer who made little, moderate, or sustained eye contact. At the end of the sessions, the participants were asked to rate their liking of the interviewer.
This is a __________ design.
Group of answer choices
2 x 3 factorial design
simple randomized
2 x 2 factorial design
3 X 3 factorial design
