Which of the following is a problem associated with the rational method of developing questionnaire items?
1. It is expensive, time-consuming, and gives relatively unreliable results.
2. Participants might give socially desirable or false answers rather than honest ones because the questions are transparent.
3. It requires an outside criterion of who is anxious or not, such as a therapist's evaluation of the anxiety levels, to relate to such method.4. Participants tend to generalize from their observations and assume that what they experience in one situation applies to all similar situations.

Based on the supply and demand theory, why do medical doctors earn higher wages than child-care workers?

One question from a survey was "how many credit cards do you currently have? " the results of the survey are provided. complete parts (a) through (g) below. click the icon to view the survey results. (a) determine the mean number of credit cards based on the raw data. the mean is 3.113.11 credit cards. (type an integer or a decimal. do not round.) (b) determine the standard deviation number of credit cards based on the raw data. the standard deviation is 1.9111.911 credit cards. (round to three decimal places as needed.) (c) determine a probability distribution for the random variable, x, the number of credit cards issued to an individual. x (# of cards) p(x) x (# of cards) p(x) 1 0.280.28 6 nothing 2 nothing 7 nothing 3 nothing 8 nothing 4 nothing 9 nothing 5 nothing 10 nothing (type integers or decimals. do not round.)

Advertisers are usually very conscious of their audience. choose an issue of a popular magazine such as time, sports illustrated, vanity fair, rolling stone, or the like. from that issue select three advertisements to analyze. try to determine the audience being appealed to in each advertisement and analyze the appeals used to persuade buyers. how might the appeals differ is the ads were designed to persuade a different audience.