The CASE structure extends the selection control structure from a choice between
two values to a choice between multiple values. How else can you express a
choice between multiple values in pseudocode?
Pseudo Code:
Select Case charFlightCode
Case 'F','A'
PRINT "First Class"
Case 'B','Q'
PRINT "Business Class"
Case 'Y','S', 'M'
PRINT "Full Fare Economy"
Case 'K','C'
PRINT "Preferred Economy"
Case 'U','J','P','G'
PRINT "Economy"
Case Else
PRINT "Unknown"
End Select
We can also represent this using nested if or else-if ladder pseudo-code structure.
Feel free to comment for any doubts or modifications!
The CASE structure extends the selection control structure from a choice between two values to a...
In a case-control study, selection bias can occur when ndividuals in the eligible population have the same probability of being included in the study. Controls are selected from the population which gave rise to the cases. Sampling fractions of cases differs from that of controls, but is independent of exposure status Sampling fractions among cases or controls differ according to exposure status.
In a case-control study, selection bias can occur when ndividuals in the eligible population have the same probability...
1. Describe: a) a control subject in a case-control study, 2. and b) a control subject in an experiment. You may want to describe their disease and/or exposure status. 3. Does "validity" indicate that a test or an instrument is accurate/correct? a. Yes b. No 4. The Healthy Worker Effect is an epidemiological concept that has shown that as a group, people who are employed are healthier than the general population. Because of this researchers must be alert to the...
In 1990, a case-control study was conducted to investigate the positive relationship between artificial sweetener use and bladder cancer. Controls were excluded from being in the study if they had any obesity-related condition. Which one of the following biases likely occurred? Ecologic Fallacy Exclusion (selection) bias Confounding Recall (information) bias
In 1990, a case-control study was conducted to investigate the positive relationship between artificial sweetener use and bladder cancer. Controls were excluded from being in the study if they had any obesity-related condition. Which one of the following biases likely occurred? Ecologic Fallacy Exclusion (selection) bias Confounding Recall (information) bias
In a case‐control study of the association between residence near a coal factory and lung cancer, selection bias is likely to arise because: a) People without lung cancer living near a coal factory may be more likely to participate than people living further away b) People with lung cancer living near a coal factory may be more likely to participate than people living further away. c) People with lung cancer may be more likely to participate than controls recruited from...
In C Programming: Declare a minimum size data structure to store the values of a Sudoko puzzle (suppose empty cells will have the value of 0 while the other cells will have values from 1 to 9). Then ask user if he/she wants to enter data for a sudoku puzzle or a sudoku solution. Suppose user enters 1 to enter a puzzle; or 2 to enter a solution to be checked. Write/call a function that asks user to enter the...
In a case control study of the association between obesity and late onset menopause, you think that women who are and are not obese are equally as likely to misreport that they had late onset menopause. a. What type of misclassification is this? Be sure to state whether it is differential or nondifferential, AND whether it is misclassification of the exposure or the disease in your response b. How would this misclassification bias the OR you calculate using your study...
Selection of materials One of the most challenging task of materials engineer is the proper selection of the material for a particular job, e.g., a particular component of a machine or structure. An engineer must be in a position to choose the optimum combination of properties in a material at the lowest possible cost without compromising the quality. A number of questions need to be answered before a decision can be made as to the specification required of a material...
1 The Correlated trait exercise shows that. A) when two characters are correlated, selection always favors larger values of both or smaller values of both B) When two characters are correlated, one of them can evolve toward higher values even if smaller values are better for survival C) when two characters are correlated, selection is always strong on both or weak on both D) when two characters are correlated, the optimal values and selection strengths rise and fall together 2...
In a case-control study by Bonita et al., the relationship between smoking and the incidence of premature stroke was assessed. The study included 132 cases (e.g. stroke) and 1,586 controls (e.g. no stroke). Among the cases, 66 were smokers. Among the controls, 424 were smokers. 1) If you set up a two by two table, what number would be A? 2) If you set up a two by two table, what number would be D? 3) If you set up...