ATTEMPT ALL QUESTIONS QUESTION ONE State whether the following statements are correct by writing TRUE or FALSE @0.5 mark) a) b) C) d) f) g) h) The main parameters of what is being studied or observed are known as unity of analysis The ratio of the variance of the true score to the variance of the actual measured score and lies between 0 and 1 is known as validity Reliability is the degree to which the results are consistent across time, data collector and items of the scale (homogeneity) that recommended to have reliability of at least 0.8 but many widely used scale is between 0.65 to 0.8. If the independent or the predictor variables have reliability, the estimates of the slope coefficient are biased in a downward direction. The method used to measure or assess validity is called Cronbach's alpha Using Cronbach's alpha, the score of standardize items have a mean of O and variance of 1 and the raw data alpha computed using variance-covariance matrix One must recall that Likert-type data is ordinal data, i.e., we can only say that one score is higher than another, not the distance between the points. Regression technique used to analyse the Likert~type data include Ordered logistic regression or Multinomial logistic regression. Alternatively collapse the levels of the Dependent variable into two levels and run binary logistic regression. QUESTION FIVE Consider the basic concept of data entry in SPSS that we learned in class. Explain the following information to pay attention to in the data entry. Note that the information is in columns of the Variable View tab in the SPSS INTERFACE. (i) (a) Name, (b)Type, (c) Width, (d) Decimals, (e)Label, (f) Values, (g)Missing, (h) Measures. (4 Marks) (ii) How do business or social science research differ from that of Natural Science. (2 Marks) (iii) List and briefly explain two choice models and one tool that is usually used to measure the reliability of data in empirical research that we learned in class (2 marks)