To fill in the rest, there's information on how many days a month get above or below a given temperature. To find out how often it rises over 70, 80 or 90 Â°F each month in Philadelphia, scroll down farther. There are also monthly and yearly counts of days with cold weather.he temperature at Philadelphia climbs into the 90s Fahrenheit for 24 days a year on average, scattered throughout late spring and summer. About once every two or three years, the thermometer here reaches 100 Â°F (38 Â°C).
Survey Research. Survey research is a commonly used method of collecting information about a population of interest. There are many different types of surveys, several ways to administer them, and many methods of sampling.There are two key features of survey research: 1  Questionnaires -- a predefined series of questions used to collect information from individuals.onsiderations for Designing a Questionnaire. 1  It is important to consider the order in which questions are presented. 2  Sensitive questions, such as questions about income, drug use, or sexual activity, should be put at the end of the survey.
Questionnaires have advantages over some other types of surveys in that they are cheap, do not require as much effort from the questioner as verbal or telephone surveys, and often have standardized answers that make it simple to compile data.However, such standardized answers may frustrate users.lthough they are often designed for statistical analysis of the responses, this is not always the case. The questionnaire was invented by the Statistical Society of London in 1838. A copy of the instrument is published in the Journal of the Statistical Society, Volume 1, Issue 1, 1838, pages 5â13.