medium · CFA Level I pm
A researcher at Helion Rail tests 500 different variables to find a statistically significant predictor of stock returns for a backtest. After finding one variable with a p-value of 0.04, the researcher concludes the strategy is viable. This is an example of:
- Sample selection bias
- Data snooping bias
- Survivorship bias
Sign up free to see the explanation and track your rank →
More CFA Level I pm practice
- To ensure that realized crisis correlations and empirical fat tails are automatically pres
- According to the 'Two-Fund Separation' principle, all investors should hold the same portf
- Why does the CAPM only reward systematic risk and not idiosyncratic risk?
- According to the CAPM, which asset must have a higher required return?
- An analyst at Helion Rail is asked to identify the 'sustaina… — Which two inputs are requi
- Which of the following events would most likely contribute to the systematic risk of Vespe
- A BA II Plus user enters N=10, I/Y=6, PMT=0, and FV=2000. After pressing CPT PV, the resul
- In the context of the 2027 Quantitative Methods curriculum, 'Big Data' preparation often i