Exam 8: Reliability and Validity

Kris has created a new scale to measure provider satisfaction in nursing homes. When the measure is completed, Kris asks her friend Dave to review it and subjectively assess if the content appears to be related to what she has intended to measure (provider satisfaction). What type of validity is Kris asking Dave to assess?

While filling out a scale on drug use, Charlie states that he has never done drugs even though he gets high three or four times daily. Which validity problem does this represent?

Validity is directly associated with the number of items included in the measuring instrument.

Johan is testing a new measure of public speaking anxiety. The scale consists of 10 Likert-type items. To test for reliability, Johan compares the even and odd numbered questions. What type of reliability test is Johan completing?

After initially validating his Extraterrestrial Communication Competence Scale, John realizes that he has not really determined what the scale was supposed to measure in the first place. Which validity threat is John facing?

When we measure the same thing on more than one occasion to see if we get the same score, which type of reliability are we testing?

In his study, Joshua reports the following in his instrumentation section: "The alpha reliability found for the Perceptions of Religious Communication in the current study was 0.75 (M = 32.53, SD = 7.9)." Which of the following statements is TRUE?

Match each of the following terms with the correct statement. -Predictive Validity

Jenny is running a study examining people's perceptions of "fake news." Her newly created measure for "fake news susceptibility" had a Cronbach's alpha of .86. How would you characterize the alpha reliability of Jenny's measure?

Explain three methods to test a measure's construct or factorial validity.

John also conducts a series of interviews with abductees and determines their level of communication competence based on their interviews. He then has them fill out the Extraterrestrial Communication Competence Scale. What type of validity is this?

Even if faking is present in a research study, validity can still be sound.

Scalar reliability is the most common form of reliability assessed in quantitative research in communication.

Zacary has just finished running Cronbach's alpha for his newly developed touch avoidance scale. During his reliability analysis, Zacary finds out that his scale's alpha reliability is .72. How would we characterize this reliability?

A scale can be reliable but not valid.

Match each of the following terms with the correct statement. -Alternate Forms Reliability

Amy created a new measure of media bias. She first shows one of her colleagues the new measure to see if the measure appears valid. What type of validity is Amy ensuring?

Explain four different types of reliability.

The Personal Report of Communication Apprehension-24 (PRCA-24) is not a _________ measure of ethnocentrism.

Predictive (prospective) validity is the form of validity concerned with whether scores taken at the same time are related to each other.